Validity of Mobility Lab (version 2) for gait assessment in young adults, older adults and Parkinson ’s disease

Objective : Gait provides a sensitive measurement for signs of aging and neurodegenerative
conditions. Measurement of gait is transitioning from the laboratory environment to the clinic with
the use of inertial measurement units, providing a simple and cost-effective assessment tool.
However, such assessments first need validation against reference systems. The aim of this study was
to validate the APDM Mobility Lab (ML) system (version 2) against a pressure sensor walkway in
younger adults ( n   =  18), older adults ( n   =  18) and people with mild Parkinson’s disease ( n
  =  21) in the laboratory. Approach : Participants completed a two-minute walk over a pressure
sensor walkway whilst wearing three sensors (strapped to the lumbar spine and both feet). Comparison
of output from the systems was then performed. Main results : Overall, we identified that ML
provided good to excellent agreement (ICC   >  0.75) for gait velocity, stride length,...

Source: Physiological Measurement - September 28, 2019 Category: Physiology Authors: Rosie Morris, Samuel Stuart, Grace McBarron, Peter C Fino, Martina Mancini and Carolin Curtze Source Type: research