A New Methodological Approach Integrating Motion Capture and Pressure-Sensitive Gait Data to Assess Functional...

Area of Science:

• Neurology and Movement Science
• Biomedical Engineering
• Rehabilitation Medicine

Background:

• Current Parkinson's disease (PD) assessments lack sensitivity for functional mobility changes crucial for rehabilitation.
• Existing tools do not adequately capture the nuances of movement quality in people with Parkinson's (PwP).
• There is a need for objective measures to assess functional mobility and guide PD management.

Purpose of the Study:

• To develop and validate the Functional Mobility Assessment for Parkinson's (FMA-P), a novel methodology for assessing functional mobility in PD.
• To investigate the FMA-P's ability to detect impairments in PwP compared to controls.
• To evaluate the FMA-P's sensitivity to change in functional mobility over a 12-week intervention period.

Main Methods:

• Development of the FMA-P integrating motion capture and pressure-sensitive gait analysis.
• Study 1: Pilot testing with 12 individuals with PD and 12 controls performing functional tasks (chair rise, doorway navigation, turning, bending, sitting).
• Study 2: A 12-week intervention study with 12 participants with PD to assess changes in functional mobility using FMA-P and standard clinical measures.

Main Results:

• The FMA-P identified significant differences between PwP and controls in chair rise (trunk inclination, jerk) and turning (duration, heel strike angle).
• The 12-week intervention showed improvements in turning stability and balance in PwP, evidenced by reduced turning time and increased rotational movement (head, trunk, pelvis) via FMA-P.
• Standard clinical measures (Timed Up and Go, task duration) did not show significant changes, highlighting FMA-P's superior sensitivity.

Conclusions:

• The FMA-P is a sensitive and objective tool for quantifying functional mobility impairments in Parkinson's disease.
• FMA-P provides fine-grained insights into movement quality, surpassing traditional clinical assessments in detecting changes.
• This novel assessment is valuable for early diagnosis, monitoring intervention efficacy, and tailoring rehabilitation strategies for individuals with PD.