Annette van der Geest1, Johannes M N Essers2, Arjen Bergsma3, Merel Jansen1, Imelda J M de Groot1. 1. Department of Rehabilitation, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands. 2. Department of Nutrition and Movement Sciences, Maastricht University Medical Centre, Maastricht, The Netherlands. 3. Technical Medical Centre Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands.
Abstract
INTRODUCTION: Accelerometry of the upper extremity (UE) potentially provides information on the extent of activities in daily life in patients with Duchenne muscular dystrophy (DMD). The objective of this study is to evaluate the validity of home measurements of UE accelerometry. METHODS: This was a cross-sectional study in 16 patients with DMD (aged 7-17 years). Patients were monitored for 1 to 3 days with two accelerometers on the UE and one accelerometer on the wheelchair. RESULTS: The mean intensity of activity and the mean frequency of transfers of arm elevation from low to middle were approximately twofold higher in patients with a Brooke scale score of 1 or 2 than in patients with a Brooke scale score of 3 or 4. Correlations with the Performance of Upper Limb scale score were high for intensity and for the total frequency of arm elevations per hour. DISCUSSION: Intensity, percentage of time in middle orientation, and frequency of transfers of the upper arm correlated well with functional measurements.
INTRODUCTION: Accelerometry of the upper extremity (UE) potentially provides information on the extent of activities in daily life in patients with Duchenne muscular dystrophy (DMD). The objective of this study is to evaluate the validity of home measurements of UE accelerometry. METHODS: This was a cross-sectional study in 16 patients with DMD (aged 7-17 years). Patients were monitored for 1 to 3 days with two accelerometers on the UE and one accelerometer on the wheelchair. RESULTS: The mean intensity of activity and the mean frequency of transfers of arm elevation from low to middle were approximately twofold higher in patients with a Brooke scale score of 1 or 2 than in patients with a Brooke scale score of 3 or 4. Correlations with the Performance of Upper Limb scale score were high for intensity and for the total frequency of arm elevations per hour. DISCUSSION: Intensity, percentage of time in middle orientation, and frequency of transfers of the upper arm correlated well with functional measurements.
Authors: Matthew F Jacques; Gladys L Onambele-Pearson; Bryn Edwards; Christian G De Goede; Christopher I Morse Journal: PLoS One Date: 2021-11-19 Impact factor: 3.240
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