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Publications

The association between age and accelerometry-derived types of habitual daily activity: an observational study over the adult life span in the Netherlands

Kimberley S. van Schooten, Jaap H. van Dieen , Mirjam Pijnappels, Andrea B. Maier, Alex J. van ‘t Hul, Martijn Niessen and Rob C. van Lummel
Jul 2018

This paper describes how the habitual types of physical activity and sedentary behaviour associate with age, to provide more detailed insight into the variation in physical activity across the lifespan.

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The effects of dual tasking on gait synchronization during over-ground side-by-side walking

Ari Z. Zivotofsky, Hagar Bernad-Elazari, Pnina Grossman, Jeffrey M. Hausdorff
Jun 2018

This study employed a dual tasking paradigm in order to investigate the role attention plays in gait synchronization.

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Free-living and laboratory gait characteristics in patients with multiple sclerosis

Fabio A. Storm , K. P. S. Nair, Alison J. Clarke, Jill M. Van der Meulen, Claudia Mazzà
May 2018

The aim of this study was to characterise gait in both laboratory and daily life conditions for a group of patients with moderate to severe ambulatory impairment due to Multiple Sclerosis. To this purpose, algorithms to detect and characterise gait from wearable inertial sensors data were also validated.

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Heart Rate Recovery, Physical Activity Level, and Functional Status in Subjects With COPD

Andrea A Morita, Laís K O Silva, Gianna W Bisca, Joice M Oliveira, Nidia A Hernandes, Fabio Pitta and Karina C Furlanetto
May 2018

This study sought to compare physical activity patterns and subjects' functional status with COPD with or without delayed 1-min heart rate recovery after the 6-min walk test (6MWT).

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Effect of Bronchodilation and Exercise Training with Behavior Modification on Exercise Tolerance and Downstream Effects on Symptoms and Physical Activity in COPD

Thierry Troosters, François Maltais, Nancy Leidy, Kim L Lavoie, Maria Sedeno, Wim Janssens, Judith Garcia-Aymerich, Damijan Erzen, Dorothy De Sousa, Lawrence Korducki, Alan Hamilton, and Jean Bourbeau
Apr 2018

The objective was to assess whether tiotropium/olodaterol, ± exercise training, would improve exercise endurance time and physical activity compared with placebo in patients participating in a self-management behavior-modification program.

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Older Adults with Weaker Muscle Strength Stand up from a Sitting Position with More Dynamic Trunk Use

Rob C. van Lummel, Jordi Evers, Martijn Niessen, Peter J. Beek and Jaap H. van Dieën
Apr 2018

The aim of this study was to determine whether measurements of Sit-to-Stand (STS) movements using body-fixed sensors yield parameters that are informative regarding changes in STS performance in older adults with reduced muscle strength.

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Physical activity in the morning and afternoon is lower in patients with chronic obstructive pulmonary disease with morning symptoms

Amanda R. van Buul, Marise J. Kasteleyn, Niels H. Chavannes and Christian Taube
Mar 2018

The primary aim of this study was to examine physical activity during the course of the day depending on morning symptoms in patients with COPD. In addition, self-reported physical activity was assessed to better understand which types of activities were generally undertaken.

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The association between objectively measured physical activity, depression, cognition, and health-related quality of life in Parkinson’s disease

Janet M.T. van Uem, Bernhard Cerff, Malte Kampmeyer, Jos Prinzen, Menno Zuidema, Markus A. Hobert, Susanne Gräber, Daniela Berg, Walter Maetzler, Inga Liepelt-Scarfone
Mar 2018

This study evaluated the influence of quantitative physical activity parameters among other (disease-related) features representing other domains of the WHO International model for classification of Function, Disability, and Health (ICF) on HRQoL in patients with Parkinson's Disease.

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Exergames to Improve the Mobility of Long-Term Care Residents: A Cluster Randomized Controlled Trial

Taylor Lynne, Kerse Ngaire, Klenk Jochen, Borotkanics Robert, and Maddison Ralph
Feb 2018

This study investigated the effect of a group-based Xbox Kinect (Microsoft Corp., Redmond, WA) exergame program on mobility in Long-Term Care residents with and without cognitive impairment.

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Calibration of raw accelerometer data to measure physical activity: A systematic review

Márcio de Almeida Mendes, Inácio C.M. da Silva, Virgílio V. Ramires, Felipe F. Reichert, Rafaela C. Martins, Elaine Tomasi
Dec 2017

Most of calibration studies based on accelerometry were developed using count-based analyses. In contrast, calibration studies based on raw acceleration signals are relatively recent and their evidences are incipient. The aim of the current study was to systematically review the literature in order to summarize methodological characteristics and results from raw data calibration studies. The

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Oxygen Desaturation in Daily Life and During a Laboratory-Based Protocol of Activities of Daily Living in COPD: Is There Relationship?

Thaís Sant’Anna, Leila Donária, Nidia A. Hernandes, Karina C. Furlanetto, Décio S. Barbosa, Rik Gosselink, Fabio Pitta
Nov 2017

The purpose of the study was to analyze the relationship between oxygen desaturation episodes during a laboratory-based ADL protocol and in real-life routine in patients with stable chronic obstructive pulmonary disease (COPD).

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Validity and Reliability of Accelerometers in Patients With COPD

Shweta Gore, Jennifer Blackwood, Mary Guyette, Bara Alsalaheen
Nov 2017

The purpose of this systematic review was to compare the validity and reliability of accelerometers used in patients with COPD.

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The association between objectively measured physical activity and morning symptoms in COPD

Amanda R van Buul, Marise J Kasteleyn, Niels H Chavannes, Christian Taube
Oct 2017

The primary objective of the Morning symptoms in-Depth observAtional Study (MODAS) was to assess the severity of morning symptoms in different Global Initiative for Obstructive Lung Disease (GOLD) stages. The secondary objective was to evaluate the association between dyspnea severity, health status, airflow limitation, lung hyperinflation, anxiety and depression, inflammatory parameters, exacerbations, objectively measured physical activity parameters and morning symptom severity.

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A study of clinical and physiological relations of daily physical activity in precapillary pulmonary hypertension

Marios Panagiotou, Martin K. Johnson, Zafeiris Louvaris, Julien S. Baker, Alistair C. Church, Andrew J. Peacock, and Ioannis Vogiatzis
Oct 2017

We sought to investigate clinical and physiological relations of daily physical activity and profile differences between less and more active patients with precapillary Pulmonary Hypertension.

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Validation of a step detection Algorithm during straight Walking and turning in Patients with Parkinson’s disease and older Adults Using an Inertial Measurement Unit at the Lower Back

Minh H. Pham, Morad Elshehabi, Linda Haertner, Silvia Del Din, Karin Srulijes, Tanja Heger, Matthis Synofzik, Markus A. Hobert, Gert S. Faber, Clint Hansen, Dina Salkovic, Joaquim J. Ferreira, Daniela Berg, Álvaro Sanchez-Ferro, Jaap H. van Dieën, Clemens Becker, Lynn Rochester, Gerhard Schmidt and Walter Maetzler
Sep 2017

The aim of this study was to validate an acceleration-based step detection algorithm for patients with Parkinson’s disease (PD) and older adults in both a lab-based and home-like environment.

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Physical Activity Monitoring in Patients with Neurological Disorders: A Review of Novel Body-Worn Devices

Oonagh M. Giggins, Ieuan Clay, Lorcan Walsh
Sep 2017

The aim was to conduct a systematic review to examine the literature reporting the validity and reliability of wearable physical activity monitoring in individuals with neurological disorders.

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Association Between Quantitative Gait and Balance Measures and Total Daily Physical Activity in Community-Dwelling Older Adults

Robert J Dawe, Sue E Leurgans, Jingyun Yang, Joshua M Bennett, Jeffrey M Hausdorff, Andrew S Lim, Chris Gaiteri, David A Bennett, Aron S Buchman
Aug 2017

This study examined the extent to which quantitative measures of gait and balance abilities were associated with total daily physical activity, controlling for a variety of potential covariates.

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People with Dementia Can Learn Compensatory Movement Maneuvers for the Sit-to-Stand Task: A Randomized Controlled Trial

Christian Werner, Stefanie Wiloth, Nele Christin Lemke, Florian Kronbach, Carl-Philippe Jansen, Petera Oster, Jürgen M. Bauer, Klaus Hauer
Aug 2017

The objective was to determine whether a dementia-specific motor learning exercise program enables people with dimentia to learn compensatory STS maneuvers commonly taught in geriatric rehabilitation therapy to enhance patients’ STS ability.

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Reeducation of vergence dynamics improves postural control

Morize, M. & Kapoula, Z.
Aug 2017

The purpose was to investigate the effect of vergence reeducation on postural control, in subjects with isolated vergence disorders.

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ACTIVATE: the effect of aclidinium/formoterol on hyperinflation, exercise capacity, and physical activity in patients with COPD

Henrik Watz, Thierry Troosters, Kai M Beeh, Judith Garcia-Aymerich, Pierluigi Paggiaro, Eduard Molins, Massimo Notari, Antonio Zapata, Diana Jarreta, Esther Garcia Gil
Aug 2017

The Phase IV, 8-week, randomized, double-blind, placebo-controlled ACTIVATE study (NCT02424344) evaluated the effect of aclidinium/formoterol (AB/FF) 400/12 μg twice daily on lung hyperinflation, exercise capacity, and physical activity in patients with moderate-to-severe COPD.

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Effects of Standardized Home Training in Patients with Cognitive Impairment following Geriatric Rehabilitation: A Randomized Controlled Pilot Study

Klaus Hauer, Phoebe Ullrich, Ilona Dutzi, Rainer Beurskens, Sylvia Kern, Jürgen Bauer, Michael Schwenk
Aug 2017

The objective was to determine what the effect was of a standardized home-based training program in geriatric patients with cognitive impairment following ward-based rehabilitation.

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Dual-Task Performance in GBA Parkinson’s Disease

Karin Srulijes, Kathrin Brockmann, Senait Ogbamicael, Markus A. Hobert, Ann-Kathrin Hauser, Claudia Schulte, Jasmin Fritzen, Michael Schwenk, Thomas Gasser, Daniela Berg, Walter Maetzler
Jul 2017

This study compared the dual tasking performances between GBA-Parkinson's Disease and idiopathic Parkinson’s Disease patients.

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Instrumented Assessment of Physical Activity Is Associated With Muscle Function but Not With Muscle Mass in a General Population

Anna G. M. Rojer, Esmee M. Reijnierse, Marijke C. Trappenburg, Rob C. van Lummel, Martijn Niessen, Kim S. van Schooten, Mirjam Pijnappels, Carel G. M. Meskers, Andrea B. Maier
Jul 2017

Self-reported physical activity has shown to affect muscle-related parameters. As self-report is likely biased, this study aimed to assess the association between instrumented assessment of physical activity (I-PA) and muscle-related parameters in a general population.

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Internet-based support for selfmanagement strategies for people with COPD–protocol for a controlled pragmatic pilot trial of effectiveness and a process evaluation in primary healthcare

André Nyberg, Karin Wadell, Helena Lindgren, Malin Tistad
Jun 2017

This pilot trial aims to evaluate the feasibility of the study design and study procedures considering effectiveness of the novel intervention, the COPD-web.

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A Review of Activity Trackers for Senior Citizens: Research Perspectives, Commercial Landscape and the Role of the Insurance Industry

Salvatore Tedesco, John Barton and Brendan O’Flynn
Jun 2017

This paper reviews the adoption of wearable devices in senior citizens by describing various researches for monitoring physical activity indicators, such as energy expenditure, posture transitions, activity classification, fall detection and prediction, gait and balance analysis, also by adopting consumer-grade fitness trackers with the associated limitations regarding acceptability.

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Gait dynamics to optimize fall risk assessment in geriatric patients admitted to an outpatient diagnostic clinic

Lisette H. J. Kikkert, Maartje H. de Groot, Jos P. van Campen, Jos H. Beijnen, Tibor Hortobagyi, Nicolas Vuillerme, Claudine C. J. Lamoth
Jun 2017

The present study aims to statistically model categories of fall risk factors that identify geriatric fallers with the highest sensitivity and specificity, with a focus on gait.

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Gait Is Associated with Cognitive Flexibility: A Dual-Tasking Study in Healthy Older People

Markus A. Hobert, Sinja I. Meyer, Sandra E. Hasmann, Florian G. Metzger, Ulrike Suenkel, Gerhard W. Eschweiler, Daniela Berg and Walter Maetzler
May 2017

The objective was to analyze which gait parameters are primarily influenced by cognitive flexibility, and whether such an effect depends on the walking condition used.

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Inertial Sensors to Assess Gait Quality in Patients with Neurological Disorders: A Systematic Review of Technical and Analytical Challenges

Aliénor Vienne, Rémi P. Barrois, Stéphane Buffat, Damien Ricard and Pierre-Paul Vidal
May 2017

This systematic review critically compares InertiaLocoGraphy protocols, questions features extracted from inertial signals and proposes a semeiological analysis of clinimetric characteristics for use in neurological clinical routine.

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Is the Assessment of 5 Meters of Gait with a Single Body-Fixed-Sensor Enough to Recognize Idiopathic Parkinson’s Disease-Associated Gait?

M. E. Mico-Amigo, I. Kingma, G. S. Faber, A. Kunikoshi, J. M. T. van Uem, R. C. van Lummel, W. Maetzler, and J. H. van Dieen
May 2017

Based on the assessment of only 5 meters of gait with a single body-fixed-sensor placed on the lower back, this study presents a method for the identification of step-by-step kinematic parameters in 14 healthy controls and in 28 patients at early-to-moderate stages of idiopathic PD.

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Sedentary Behavior Is an Independent Predictor of Mortality in Subjects With COPD

Karina C. Furlanetto, Leila Donária, Lorena P. Schneider, José R. Lopes, Marcos Ribeiro, Karen B.P. Fernandes, Nidia A. Hernandes and Fabio Pitta
May 2017

The aim of this work was to investigate the impact of sedentary behavior on mortality of subjects with COPD and to propose a cutoff point of sedentarism with prognostic value.

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Home-Based Physical Behavior in Late Stage Parkinson Disease Dementia: Differences between Cognitive Subtypes

B. Cerff, W. Maetzler, P. Sulzer, M Kampmeyer, J. Prinzen, M.A. Hobert, D. Blum, R.C. van Lummel, S. Del Din, S. Gräber, D. Berg, I. Liepelt-Scarfone
Apr 2017

In this pilot study, home-based physical behavior was assessed to examine whether it is possible to distinguish mild cognitive impairment (PD-MCI) from PDD.

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Socio-environmental correlates of physical activity in patients with chronic obstructive pulmonary disease (COPD)

Ane Arbillaga-Etxarri, Elena Gimeno-Santos, Anael Barberan-Garcia, Marta Benet, Eulàlia Borrell, Payam Dadvand, Maria Foraster, Alicia Marín, Mònica Monteagudo, Robert Rodriguez-Roisin, Pere Vall-Casas, Jordi Vilaró, Judith Garcia-Aymerich
Mar 2017

The aim was to assess the relationship between novel socio-environmental factors, namely dog walking, grandparenting, neighbourhood deprivation, residential surrounding greenness and residential proximity to green or blue spaces, and amount and intensity of physical activity in COPD patients.

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Physical activity is increased by a 12-week semiautomated telecoaching programme in patients with COPD: a multicentre randomised controlled trial

H Demeyer, Z Louvaris, A Frei, R A Rabinovich, C de Jong, E Gimeno-Santos, M Loeckx, S C Buttery, N Rubio, T Van der Molen, N S Hopkinson, I Vogiatzis, M A Puhan, J Garcia-Aymerich, M I Polkey, T Troosters
Jan 2017

The objective was to investigate the effectiveness of a 12-week semiautomated telecoaching intervention on PA in patients with COPD in a multicentre European randomised controlled trial.

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Development, Validity and Reliability of the Londrina Activities of Daily Living Protocol for Subjects With COPD

Thaís Sant' Anna, Leila Donária, Karina C Furlanetto, Fernanda Morakami, Antenor Rodrigues, Talita Grosskreutz, Nidia A Hernandes, Rik Gosselink and Fabio Pitta
Jan 2017

The aim of the present study was to develop a standardized protocol to evaluate ADL performance in subjects with COPD (Londrina ADL protocol) and to assess the validity and reliability of the protocol in this population.

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Fall-related gait characteristics on the treadmill and in daily life

Sietse M. Rispens , Jaap H. Van Dieën , Kimberley S. Van Schooten , L. Eduardo Cofré Lizama, Andreas Daffertshofer, Peter J. Beek and Mirjam Pijnappels
Dec 2016

The present study aimed to assess differences as well as associations between fall-related gait characteristics measured on a treadmill and in daily life.

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Social and environmental determinants of physical activity in patients with chronic obstructive pulmonary disease (COPD)

Elena Gimeno-Santos, Ane Arbillaga-Etxarri, Anael Barberan-Garcia, Marta Benages-Albert, Marta Benet, Payam Dadvand, Maria Foraster, Alicia MarÍn, Mònica Monteagudo, Pere Vall-Casas, Jordi Vilaró, Judith Garcia-Aymerich
Nov 2016

The aim was to assess the association between patients' social and environmental characteristics, and PA amount and intensity.

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Transition Between the Timed up and Go Turn to Sit Subtasks: Is Timing Everything?

Aner Weiss, Anat Mirelman, Nir Giladi, Lisa L. Barnes, David A. Bennett, Aron S. Buchman, Jeffrey M. Hausdorff
Sep 2016

We tested the hypothesis that longer transition durations between the final turn to the sitting subtasks are associated with worse motor and cognitive performance in older adults.

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Can a single lower trunk body-fixed sensor differentiate between level-walking and stair descent and ascent in older adults? Preliminary findings

Aner Weiss, Marina Brozgol, Nir Giladi, Jeffrey M. Hausdorff
Jul 2016

We aim to differentiate between level-walking and between stair descent and ascent using a single body fixed sensor, a 3D accelerometer integrated with a 3D gyroscope placed on the lower trunk in healthy older adults.

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A systematic review of the characteristics and validity of monitoring technologies to assess Parkinson’s disease

Catarina Godinho, Josefa Domingos, Guilherme Cunha, Ana T. Santos, Ricardo M. Fernandes, Daisy Abreu, Nilza Gonçalves, Helen Matthews, Tom Isaacs, Joy Duffen, Ahmed Al-Jawad, Frank Larsen, Artur Serrano, Peter Weber, Andrea Thoms, Stefan Sollinger, Holm Graessner, Walter Maetzler and Joaquim J. Ferreira
Mar 2016

This study proposes a systematic review of current literature aiming to (i) list, (ii) compare and (iii) classify technology-based devices that objectively measure PD motor symptoms.

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Can health status questionnaires be used as a measure of physical activity in COPD patients?

Heleen Demeyer, Ivan Dueñas-Espín, Corina De Jong, Zafeiris Louvaris, Miek Hornikx, Elena Gimeno-Santos, Matthias Loeckx, Ioannis Vogiatzis, Wim Janssens, Nicholas S. Hopkinson, Roberto A. Rabinovich, Niklas Karlsson Judith Garcia-Aymerich and Thierry Troosters
Feb 2016

The aims of the present analyses were 1) to describe the relationship between objectively measured physical activity and responses to health status questionnaires, and 2) to assess the utility of these questionnaires to screen for severe physical inactivity (SPI) in this population.

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Enhancing exercise tolerance and physical activity in COPD with combined pharmacological and non-pharmacological interventions: PHYSACTO randomised, placebo-controlled study design

Thierry Troosters, Jean Bourbeau, François Maltais, Nancy Leidy, Damijan Erzen, Dorothy De Sousa, Lawrence Korducki, Alan Hamilton
Feb 2016

We describe the design of the PHYSACTO trial, which is investigating the effects of bronchodilators, either alone or with exercise training, in combination with a standardised behaviour-change self-management programme, on exercise capacity and physical activity in patients with COPD. It is hypothesised that bronchodilators in conjunction with a behaviourchange self-management programme will improve physical activity and that this effect will be amplified by the addition of exercise training.

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Patients’ adherence to a walking programme for non-specific low back pain

L. H. Van Koppen, P. J. J. Zandwijk, H. Van Mameren, I. Mesters, B. Winkens & R. A. De Bie
Jan 2016

The aim of this cross-sectional observational study was to investigate adherence rate and factors influencing the adherence in following home-based activity advice, in patients referred to a physiotherapy clinic for non-specific low back pain.

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Rivastigmine for gait stability in patients with Parkinson’s disease (ReSPonD): a randomised, double-blind, placebo-controlled, phase 2 trial

Emily J. Henderson, Stephen R. Lord, Matthew A. Brodie, Daisy M. Gaunt, Andrew D. Lawrence, Jacqueline C. T. Close, A L Whone, Y. Ben-Shlomo
Jan 2016

In the ReSPonD trial we aimed to assess whether ameliorating the cholinergic deficit with an acetylcholinesterase inhibitor rivastigmine would reduce gait variability

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Effect of calendar age on physical performance: A comparison of standard clinical measures with instrumented measures in middle-aged to older adults

M.Stijntjes, C.G.M. Meskers, A.J.M. de Craen, R.C. van Lummel, S.M. Rispens, P.E. Slagboom, A.B. Maier
Dec 2015

We studied the association of calendar age and familial longevity with standard clinical and instrumented measures of physical performance in a cohort of healthy middle-aged to older adults.

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Physical performance and physical activity in older adults: associated but separate domains of physical function in old age

Rob C. van Lummel, Stefan Walgaard, Mirjam Pijnappels , Petra J. M. Elders , Judith Garcia-Aymerich, Jaap H. van Dieën , Peter J. Beek
Dec 2015

The objective was to examine whether 1) physical performance (PP) and physical activity (PA) constitute separate domains of physical function; 2) differentiation of PA classes is more informative than overall PA

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The effects of a physical activity counseling program after an exacerbation in patients with Chronic Obstructive Pulmonary Disease: a randomized controlled pilot study

Miek Hornikx, Heleen Demeyer, Carlos Augusto Camillo, Wim Janssens and Thierry Troosters
Nov 2015

For this pilot study, we hypothesized that, through frequent PA counseling and real-time feedback, patients would potentially increase their PA level more rapidly in the month after an exacerbation compared to subjects in a control group, receiving usual care.

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Development of an integral assessment approach of health status in patients with obstructive airway diseases: the CORONA study

Edmée FMM van den Akker, Alex J van ‘t Hul, Niels H Chavannes, Gert-Jan Braunstahl, Alie van Bruggen, Maureen PMH Rutten-van Mölken, Johannes CCM in ‘t Veen
Nov 2015

The COPD and Asthma Rotterdam Integrated Care Approach (CORONA) study aims to develop a diagnostic pathway with a more comprehensive approach to the assessment of patients with asthma and COPD in secondary care.

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The PROactive instruments to measure physical activity in patients with chronic obstructive pulmonary disease

Elena Gimeno-Santos, Yogini Raste, Heleen Demeyer, Zafeiris Louvaris, Corina de Jong, Roberto A. Rabinovich, Nicholas S. Hopkinson, Michael I. Polkey, Ioannis Vogiatzis, Maggie Tabberer, Fabienne Dobbels, Nathalie Ivanoff, Willem I. de Boer, Thys van der Molen, Karoly Kulich, Ignasi Serra, Xavier Basagaña, Thierry Troosters , Milo A. Puhan, Niklas Karlsson, and Judith Garcia-Aymerich
Sep 2015

The aim of the current study was 1) to identify a comprehensive set of nonredundant items and monitor outputs that can be used to measure physical activity in COPD patients and 2) to perform an initial validation of the two instruments.

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Cycling detection with a single activity monitor

Siete C. Frouws, Alex J. van 't Hul, Johannes C.C.M. in 't Veen, Jaap H. van Dieën, Rob C. van Lummel
Sep 2015

This abstract describes a method for detection of cycling.

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Why detection of cycling is important in activity monitoring

Rob C. van Lummel, Siete C. Frouws, Alex J. van 't Hul, Jaap H. van Dieën, Johannes C.C.M. in 't Veen
Sep 2015

This study aimed to evaluate the effects of misclassification of cycling with an activity monitor.

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Mediolateral balance and gait stability in older adults

L. Eduardo Cofré Lizama, Mirjam Pijnappels, Sietse M. Rispens, N. Peter Reeves, Sabine M. Verschueren, Jaap H.van Dieën
Jun 2015

This study aimed to determine whether MELBA is an ecologically valid tool by correlating its outputs with a measure of mediolateral gait stability known to be predictive of falls.

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Frequent sputum production is associated with disturbed night’s rest and impaired sleep quality in patients with COPD

J. E. Hartman, J. Prinzen, R. C. van Lummel, N. H. T. ten Hacken
Mar 2015

In this study, we measured night’s rest parameters measured with an accelerometer and sleep quality in mild to very severe patients with COPD. Furthermore, our aim was to investigate the association between night’s rest parameters and clinical variables and the association between sleep quality and quality of life or health status.

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High correlation of the Oxford knee score with postoperative pain, but not with performance-based functioning

Ruud P. van Hove, Richard M. Brohet, Barend J. van Royen, Peter A. Nolte
Mar 2015

The Oxford Knee Score (OKS) is a widely known patient-related outcome measure(PROM) to determine pain and knee functioning before and after total knee arthroplasty (TKA).In this study it was hypothesized that the OKS correlates more with pain than with performance-based functioning.

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Step detection and activity recognition accuracy of seven physical activity monitors

Fabio A. Storm, Ben W. Heller, Claudia Mazzà
Mar 2015

The aim of this study was to compare the seven following commercially available activity monitors in terms of step count detection accuracy: Movemonitor (McRoberts), Up (Jawbone), One (Fitbit), ActivPAL (PAL Technologies Ltd.), Nike+ Fuelband (Nike Inc.), Tractivity (Kineteks Corp.) and Sensewear Armband Mini (Bodymedia).

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Validation of an activity monitor during sleep in patients with chronic respiratory disorders

Rainer Gloeckl, Thomas Damisch, Jos Prinzen, Rob van Lummel, Evert Pengel, Ursula Schoenheit-Kenn, Klaus Kenn
Jan 2015

Objective of this study was to validate an activity monitor (DynaPort MoveMonitor [MM], McRoberts, The Hague, The Netherlands) against night-vision video analysis during sleep.

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Ambulatory fall-risk assessment: amount and quality of daily-life gait predict falls in older adults

Kimberley S. van Schooten, Mirjam Pijnappels, Sietse M. Rispens, Petra J. M. Elders, Paul Lips, Jaap H. van Dieën
Jan 2015

We compared associations between retrospective and prospective falls with potential risk factors as measured by daily-life accelerometry. In addition, we investigated predictive value of these parameters for 6-month prospective falls.

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Do extreme values of daily-life gait characteristics provide more information about fall risk than median values?

Sietse M Rispens, Kimberley S van Schooten, Mirjam Pijnappels, Andreas Daffertshofer, Peter J Beek, Jaap H van Dieën
Jan 2015

The objective of this study was to improve fall-risk prediction models by examining whether the use of extreme values strengthens the associations with falls.

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Assessing Physical Activity in Older Adults: Required Days of Trunk Accelerometer Measurements for Reliable Estimation

Kimberley S. van Schooten, Sietse M. Rispens, Petra J.M. Elders, Paul Lips, Jaap H. van Dieën, Mirjam Pijnappels
Jan 2015

We investigated the reliability of physical activity monitoring based on trunk accelerometry in older adults and assessed the number of measured days required to reliably assess physical activity.

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Limitation in tidal volume expansion partially determines the intensity of physical activity in COPD

Eleni A. Kortianou, Andrea Aliverti, Zafeiris Louvaris, Maroula Vasilopoulou, Ioannis Nasis, Andreas Asimakos, Spyros Zakynthinos, and Ioannis Vogiatzis
Dec 2014

The purpose of the present study was to investigate whether differences in physical activity levels commonly adopted by individual patients with COPD in daily life compared with well-controlled laboratory environments are partly attributed to differences in the magnitude of mechanical limitation to total and compartmental (rib cage and abdominal) chest wall volumes.

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The effect of supervised exercise therapy on physical activity and ambulatory activities in patients with intermittent claudication

H.J.P. Fokkenrood, G.J. Lauret, N. Verhofstad, B.L.W. Bendermacher, M.R.M. Scheltinga, J.A.W. Teijink
Nov 2014

The aim of this study was to investigate the effect of Supervised Exercise Therapy on Physical Activity levels and ambulatory activities in patients with Intermittent Claudication.

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Instrumented functional reach test differentiates individuals at high risk for Parkinson’s disease from controls

Sandra E. Hasmann, Daniela Berg, Markus A. Hobert, David Weiss, Ulrich Lindemann, Johannes Streffer, Inga Liepelt-Scarfone, Walter Maetzler
Oct 2014

This cross-sectional study aimed at investigating whether the instrumented Functional Reach test has the potential to differentiate individuals with high risk for Parkinson's Disease (HRPD) from controls, as the delineation of such individuals would allow for, e.g., early neuromodulation.

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Gait and balance in Parkinson’s disease subtypes: objective measures and classification considerations

Talia Herman, Aner Weiss, Marina Brozgol, Nir Giladi, Jeffrey M. Hausdorff
Sep 2014

To better understand motor subtypes within Parkinson's disease, we objectively quantified gait and balance and their behavioral correlates.

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Physical activity monitoring in patients with peripheral arterial disease: validation of an activity monitor

H.J.P. Fokkenrood, N. Verhofstad, M.M.L. van den Houten, G.J. Lauret, C. Wittens, M.R.M. Schelting, J.A.W. Teijink
Aug 2014

The aim of this study was to validate daily activities using a novel type of tri-axial accelerometer (Dynaport MoveMonitor) in patients with Intermittent Claudication.

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Effect of bed height and use of hands on trunk angular velocity during the sit-to-stand transfer

Ulrich Lindemann, Leon van Oosten, Jordi Evers, Clemens Becker, Jaap H. van Dieen & Rob C. van Lummel
Jul 2014

This study was to investigate the effect of bed height and use of hands on trunk angular velocity and trunk angles during the sit-to-stand (STS) performance.

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New evidence for gait abnormalities among Parkinson’s disease patients who suffer from freezing of gait: insights using a body-fixed sensor worn for 3 days

Aner Weiss, Talia Herman, Nir Giladi & Jeffrey M. Hausdorff
Jul 2014

We evaluated whether long-term recordings of Parkinson patients with a 3-D accelerometer for 3 days reveal gait alterations in freezers and if these features were related to freezing severity and its impact on daily function.

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Physical activity monitoring in patients with intermittent claudication

G.J. Lauret, H.J.P. Fokkenrood, B.L. Bendermacher, M.R.M. Schelting, J.A.W. Teijink
Jun 2014

The aim of this study was to quantify daily Physical Activity level and energy expenditure of newly diagnosed patients with Intermittent Claudication and healthy controls.

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Validation of a body-worn accelerometer to measure activity patterns in octogenarians

Lynne M. Taylor, Jochen Klenk, Alistair J. Maney, Ngaire Kerse, Bruce M. MacDonald, Ralph Maddison
May 2014

To determine the validity of a triaxial body-worn accelerometer for detection of gait and postures in people aged >80 years.

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Consistency of gait characteristics as determined from acceleration data collected at different trunk locations

Sietse M.Rispens, Mirjam Pijnappels, Kimberley S. van Schooten, Peter J. Beek, Andreas Daffertshofer, Jaap H. van Dieën
May 2014

We studied (outdoors) over-ground walking over repeated short-distances where we included turns to investigate gait parameters obtained from activities such as in a daily life setting.

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Physical activity recommendations in patients with chronic obstructive pulmonary disease

Hartman, J.E., et al.
May 2014

The objective of the current study was to compare individualized (relative) and nonindividualized (absolute) physical activity recommendations in patients with COPD and to assess whether there are differences between patients with mild to moderate and (very) severe COPD.

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Identification of fall risk predictors in daily life measurements gait characteristics’ reliability and association with self-reported fall history

Sietse M. Rispens, Kimberley S. van Schooten, Mirjam Pijnappels, Andreas Daffertshofer, Peter J. Beek, Jaap H. van Dieën
Apr 2014

The aim of this study was to identify gait characteristics that are associated with self-reported fall history and that can be reliably assessed based on ambulatory data collected during a single week.

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Accuracy of three activity monitors in patients with chronic obstructive pulmonary disease: A comparison with video recordings

Mikael Andersson, Christer Janson & Margareta Emtner
Apr 2014

The aim of this study was to assess the accuracy and equivalency of three activity monitors regarding steps, body position and their ability to differentiate between periods of physical activity and inactivity.

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Accelerometer-based quantitative analysis of axial nocturnal movements differentiates patients with Parkinson’s disease, but not high-risk individuals, from controls

Maartje Louter, Walter Maetzler, Jos Prinzen, Rob C van Lummel, Markus Hobert, Johan B A M Arends, Bastiaan R Bloem, Johannes Streffer, Daniela Berg, Sebastiaan Overeem, Inga Liepelt-Scarfone
Apr 2014

In this study we hypothesised that changes in nocturnal movement patterns might occur already in non-PD individuals with a potentially high risk for future development of the disease.

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Automated detection of missteps during community ambulation in patients with Parkinson’s disease: a new approach for quantifying fall risk in the community setting

Tal Iluz, Eran Gazit, Talia Herman, Eliot Sprecher, Marina Brozgol, Nir Giladi, Anat Mirelman and Jeffrey M Hausdorff
Apr 2014

We developed an objective tool for detecting missteps under real-world, daily life conditions to enhance the evaluation of fall risk and applied this new method to 3 day continuous recordings.

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Association between performance on Timed Up and Go subtasks and mild cognitive impairment: further insights into the links between cognitive and motor function

Anat Mirelman, Aner Weiss, Aron S. Buchman, David A. Bennett, Nir Giladi and Jefferey M. Hausdorff
Apr 2014

The objective was to assess whether different TUG subtasks are preferentially affected among older adults with mild cognitive impairment (MCI) and are specific to different cognitive abilities.

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Physical activity and physical fitness in lymphoma patients before, during, and after chemotherapy: a prospective longitudinal study

Nele Vermaete, Pascal Wolter, Gregor Verhoef, Rik Gosselink
Mar 2014

The aim of this longitudinal study was to assess fatigue, physical activity, and physical fitness in lymphoma patients before, during, and after treatment.

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Toward ambulatory balance assessment: estimating variability and stability from short bouts of gait

Kimberley S. van Schooten, Sietse M. Rispens, Petra J.M. Elders, Jaap H. van Dieën, Mirjam Pijnappels
Feb 2014

This study aimed to explore the feasibility of using metrics of gait kinematics in clinical practice and ambulatory assessment, where only a small number of consecutive strides are available.

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Associations between quantitative mobility measures derived from components of conventional mobility testing and Parkinsonian gait in older adults

Aron S. Buchman, Sue E. Leurgans, Aner Weiss, Veronique VanderHorst, Anat Mirelman, Robert Dawe, Lisa L. Barnes, Robert S. Wilson, Jeffrey M. Hausdorff, David A. Bennett
Jan 2014

The objective of this study was to provide objective measures which characterize mobility in older adults assessed in the community setting and to examine the extent to which these measures are associated with Parkinsonian gait.

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Validity and reliability of measuring activities, movement intensity and energy expenditure with the DynaPort MoveMonitor

de Groot, S., et al.
Oct 2013

The purpose of this study was to evaluate the validity and reliability of assessing activities, movement intensity (MI) and energy expenditure (EE) measured by accelerometry.

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Using a Body-Fixed Sensor to Identify Subclinical Gait Difficulties in Older Adults with IADL Disability: Maximizing the Output of the Timed Up and Go

Weiss, A., et al.
Jul 2013

We tested whether measures derived from a single body-fixed sensor worn during traditional Timed Up and Go (TUG) testing could identify subclinical gait impairments in community dwelling older adults without mobility disability.

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Automated approach for quantifying the repeated sit-to-stand using one body fixed sensor in young and older adults

Van Lummel, R.C., et al.
May 2013

The objectives of the present study were to describe the feasibility of using an automated approach for quantifying the STS using one sensor location and to start testing the discriminative validity of this approach by comparing older and younger adults.

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Validity of physical activity monitors during daily life in patients with COPD

Rabinovich, R.A.
Feb 2013

Our aim was to evaluate the validity and usability of six activity monitors in patients with COPD against the doubly labelled water (DLW) indirect calorimetry method.

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Validation of seat-off and seat-on in repeated sit-to-stand movements using a single-body-fixed sensor

Van Lummel, R.C., et al.
Oct 2012

The aim of this study is to validate seat-off and seat-on detection using a single-body-fixed sensor against detection based on chair switches.

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Validity of six activity monitors in chronic obstructive pulmonary disease: a comparison with indirect calorimetry

Van Remoortel, H., et al.
Jun 2012

The aim was to evaluate the validity of six monitors in patients with COPD.

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Validity and reliability of accelerometer-based gait assessment in patients with diabetes on challenging surfaces

De Bruin, E.D., et al.
Jun 2012

We investigate the test-retest reliability and construct validity of gait measured with the DynaPort MiniMod under single and dual task conditions in diabetic patients walking on irregular terrain to identify the measurement error (precision) and minimal clinical detectable change.

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Validation of a compact motion sensor for the measurement of physical activity in patients with chronic obstructive pulmonary disease

Sugino, A., et al.
Mar 2012

The validity of the Actimarker was evaluated in COPD patients.

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Validation of the triaxial accelerometer for the evaluation of physical activity in Japanese patients with COPD

Kanda, M., et al.
Feb 2012

We initially evaluated the reproducibility of the DAM in Japanese healthy subjects. Next, the within-subject repeatability and the determinants of physical activity were investigated in Japanese COPD patients.

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Validity of instruments to measure physical activity may be questionable due to a lack of conceptual frameworks: a systematic review

Gimeno-Santos, E., et al.
Oct 2011

This study, which was limited to a specific case, had the following aims: (i) to identify conceptual frameworks of physical activity in chronic respiratory patients or similar populations (chronic heart disease patients or the elderly) and (ii) to assess whether the development and validation of PROs to measure physical activity in these populations were based on a conceptual framework of physical activity.

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Detection of lying, sitting, standing and locomotion under free living conditions (24h): validation of a one sensor versus a multiple sensor approach

Van Lummel, R.C., et al.
Mar 2011

The aim of this study is to validate a newly developed activity monitor (DynaPort® MoveMonitor) during unsupervised daily life conditions.

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Validation of the DynaPort MiniMod during sleep: a pilot study

Bossenbroek, L., et al
Nov 2010

The goal was to examine the validity of the DynaPort MiniMod in assessing physical activity and body posture during sleep.

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Automated detection of near falls: algorithm development and preliminary results

Weiss, A., et al
Mar 2010

The purpose of the present study was to develop a method for automatic detection of near falls, potentially a sensitive, objective marker of fall risk and to demonstrate the ability to detect near falls using this approach.

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Validation of two activity monitors in patients with COPD

Langer, D., et al.
Jul 2009

We validated two smaller activity monitors in a sample of 10 patients with COPD.

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Estimating Activity-related Energy Expenditure Under Sedentary Conditions Using a Tri-axial Seismic Accelerometer

Van Hees, V.T., et al.
Jun 2009

The first aim of this study was to combine the type and the intensity of PA into one model for energy expenditure prediction. The second aim was to assess model validity under exclusively sedentary conditions.

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Athletic skill level is reflected in body sway: A test case for accelometry in combination with stochastic dynamics

Lamoth, C.J.C., et al.
Jun 2009

The aim of the present study was to determine – as spade work for possible clinical applications – whether body sway measured with a three-axial accelerometer at the trunk can differentiate between three healthy young populations that differ in athletic skill level.

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Concurrent validity of a trunk tri-axial accelerometer system for gait analysis in older adults

Hartmann, A., et al.
Apr 2009

The aim of this study was (1) to determine the concurrent validity of a trunk tri-axial accelerometer system (DynaPort®MiniMod) with the GAITRite® system for spatio-temporal gait parameters at preferred, slow and fast self-selected walking speed that were recorded for averaged and individual step data in an older adult population and (2) to compare the levels of agreement for averaged step data from different walking distances and individual step data.

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Reproducibility of a Triaxial Seismic Accelerometer (DynaPort)

Van Hees, V.T., et al.
Jan 2009

The purpose of the study was to examine the reproducibility of a triaxial seismic accelerometer under controlled conditions and real-life conditions.

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Quantity versus quality of gait and quality of life in patients with osteoarthritis

Brandes, M., et al.
Jul 2008

This study investigated the relationship between the quality of life, quality of gait and the quantity of gait in patients with impairments in the lower extremities.

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Physical activity levels after limb salvage surgery are not related to clinical scores—objective activity assessment in 22 patients after malignant bone tumor treatment with modular prostheses

Rosenbaum, D., et al.
Jun 2008

The aim of the present study was to objectively assess the physical activity levels of patients after tumor prosthesis implantation with two objective measurement devices.

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Detection of walking periods and number of steps in older adults and patients with Parkinson’s disease: accuracy of a pedometer and an accelerometry-based method

Dijkstra, B., et al.
May 2008

The aim of this study was to examine if walking periods and number of steps can accurately be detected by a single small body-fixed device in older adults and patients with Parkinson's disease (PD).

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Accelerometry based assessment of gait parameters in children

Brandes, M., et al.
Dec 2006

The objective of this study was to examine if spatio-temporal gait parameters in healthy children can be determined from accelerations measured at the lower trunk as has been demonstrated in adults, previously.

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Correlations between the step activity monitor and the DynaPort ADL-monitor

Brandes, M. & Rosenbaum, D.
Jan 2004

This study was performed to evaluate correlations between the DynaPort activity of daily living monitor and the step activity monitor.

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