Continuous monitoring and quantification of multiple parameters of daily physical activity in ambulatory Duchenne muscular dystrophy patients.
Multiple motor function and strength assessment tools exist for the evaluation of neuromuscular diseases, but most do not directly assess functional ability in the patients' daily physical activity in their home environment. In this study our aim was to assess: 1) the feasibility and accuracy of physical activity monitoring during two days in a home environment of five DMD patients using a non-commercialized monitor containing a 3D accelerometer and a gyroscope, 2) if a difference in the physical activity parameters could be measured before and one month after starting prednisolone. We reliably quantified the time spend sitting, standing, lying, walking, the number of steps taken, the cadence, the number of walking episodes and their duration as well as how these were distributed over the day. Parameters possibly reflecting endurance, such as the duration of the walking episodes or the succession of two or three walking episodes lasting more than 30 s were the most improved after prednisolone treatment. This degree of detailed determination of physical activity in a home environment has not been previously reported in neuromuscular disorders to our knowledge and some of the reported parameters are potential new outcome measures in clinical trials.
Jeannet
Pierre-Yves
PY
Pediatric Neuromuscular Center, Department of Pediatrics, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland. pierre-yves.jeannet@chuv.ch
Aminian
Kamiar
K
Bloetzer
Clemens
C
Najafi
Bijan
B
Paraschiv-Ionescu
Anisoara
A
D000203:Activities of Daily Living / Q000523:psychology; D002648:Child; D002675:Child, Preschool; D005240:Feasibility Studies; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods*; D020388:Muscular Dystrophy, Duchenne / Q000188:drug therapy / Q000534:rehabilitation*; D010809:Physical Fitness / Q000502:physiology*; D010865:Pilot Projects; D011239:Prednisolone / Q000627:therapeutic use; D015203:Reproducibility of Results; D016138:Walking
D011239:Prednisolone