Martens, W.L.J.

activity limb activity mobility-related activities subject bussmann study measure limb usage movement measurement signal patient schasfoort ulam outcome measures mobility-related usage outcome limitation rehabilitation behavior application studies sensor research application limb disorders disorder instrument rehabilitation medicine accelerometry outcome measures percentage objective monitoring forearm medicine analysis impairment acceleration motility technique activity limitations marten patient groups value ulam configuration application study detection difference feature variability group measurement period syndrome feasibility study configuration method questionnaire future feasibility nonusage relationship netherland accelerometer figure mobility between-day variability interval future research projects uswatte development monitoring systems stroke interval i characteristic acceleration sensors validity assessment period activity patterns nondominant