ACCELERATION PATTERN OF THE UPPER BODY DURING LEVEL WALKING IN PATIENTS WITH PARKINSON'S DISEASE
- Authors
- Kim, Ji-Won; Kwon, Yu-Ri; Heo, Jae-Hoon; Eom, Gwang-Moon; Kwon, Moon-Seok; Tack, Gye-Rae; Koh, Seong-Beom
- Issue Date
- 12월-2016
- Publisher
- WORLD SCIENTIFIC PUBL CO PTE LTD
- Keywords
- Gait; acceleration; upper body; Parkinson' s disease; elderly
- Citation
- Journal of Mechanics in Medicine and Biology, v.16, no.8
- Indexed
- SCIE
SCOPUS
- Journal Title
- Journal of Mechanics in Medicine and Biology
- Volume
- 16
- Number
- 8
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/86698
- DOI
- 10.1142/S021951941640025X
- ISSN
- 0219-5194
- Abstract
- The aim of this study was to investigate the effects of Parkinson's disease (PD) on upper body acceleration patterns during level walking. Twenty-three patients with PD and 29 controls of similar age participated in this study. Subjects walked along a 12 m linear walkway at self-selected comfortable speeds. Upper body accelerations were measured using three-axis accelerometers located at the pelvis, shoulder, and head. Acceleration magnitude, stride-to-stride irregularity, and degree of coupling among three body parts were derived from the acceleration signals. In the vertical (supero-inferior) direction, PD patients exhibited a smaller acceleration magnitude, a more irregular pattern, and less coupling of acceleration among body parts compared to the controls (p < 0.05). In the anterio-posterior (AP) direction, acceleration magnitude at the pelvis in PD patients was smaller than that in the controls (p < 0.05). In addition, the phase lag of AP head acceleration from shoulder and pelvis was smaller in PD patients than in the controls (p < 0.05). These results suggest that PD patients walk with reduced ankle power generation and a more rigid upper body in the AP direction and with more irregular muscle force generation in the SI direction.
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