Effects of Freezing of Gait on Spatiotemporal Variables, Ground Reaction Forces, and Joint Moments during Sit-to-walk Task in Parkinson's Disease

Park, Hwayoung; Youm, Changhong; Son, Minji; Lee, Meounggon; Kim, Jinhee

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자료유형: 학술저널

저자정보: Park, Hwayoung (Biomechanics Laboratory, College of Health Sciences, Dong-A University) Youm, Changhong (Biomechanics Laboratory, College of Health Sciences, Dong-A University) Son, Minji (Biomechanics Laboratory, College of Health Sciences, Dong-A University) Lee, Meounggon (Biomechanics Laboratory, College of Health Sciences, Dong-A University) Kim, Jinhee (Biomechanics Laboratory, College of Health Sciences, Dong-A University)

저널정보: 한국운동역학회 한국운동역학회지 한국운동역학회지 제28권 제1호

발행연도: 2018.1

수록면: 19 - 27 (9page)

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Objective: This study aimed to analyze the effects of freezing of gait on spatiotemporal variables, ground reaction forces (GRFs), and joint moments during the sit-to-walk task at the preferred and maximum speeds in patients with Parkinson's disease (PD). Method: The subjects were classified by a neurologist into 12 freezers, 12 non-freezers, and 12 controls. Sit-to-walk parameters were measured during three repetitions of the task in a random order at the preferred and maximum possible speeds. Results: In the sit-to-walk task at the preferred speed, the freezers and non-freezers exhibited a higher peak anterior-posterior GRF (p<0.001) in the sit-to-stand phase and lower step velocity (p<0.001), step length (p<0.001), and peak anterior-posterior GRF (p<0.001) in the first-step phase than the controls. The freezers had higher peak anterior-posterior GRF (p<0.001) and peak moment of the hip joint (p=0.008) in the sit-to-stand phase than the non-freezers. In the sit-to-walk phase at the maximum speed, the freezers and non-freezers had lower peak moment of the hip joint (p=0.008) in the sit-to-stand phase than the controls. The freezers and non-freezers displayed lower step velocity (p<0.001) and peak anterior-posterior GRF (p<0.001) in the first-step phase than the controls. The freezers showed higher peak moments of the hip joint in the sit-to-stand phase than the non-freezers (p=0.008). Conclusion: The PD patients had reduced control ability in sit-to-stand motions for efficient performance of the sit-to-walk task and reduced performance in the sit-to-walk task. Furthermore, the freezers displayed reduced control ability in the sit-to-stand task. Finally, the PD patients exhibited a lower ability to control dynamic stability with changes in speed than the controls.

#Parkinson's disease #Freezing of gait #Gait #GRF #Motor symptom

참고문헌 (25)

참고문헌 신청

Beckley, D. J. / 1991 / Electrophysiological correlates of postural instability in Parkinson's disease / Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section 81(4):263~268

Buckley, T. A. / 2008 / Dynamic postural stability during sit‐to‐walk transitions in Parkinson disease patients / Movement Disorders 23(9):1274~1280

Brown, K. C. / 2015 / Gait speed and variability for usual pace and pedestrian crossing conditions in older adults using the GAITRite Walkway / Gerontology and Geriatric Medicine :1~8

Carpinella, I. / 2007 / Locomotor function in the early stage of Parkinson's disease / IEEE Transactions on Neural Systems and Rehabilitation Engineering 15(4):543~551

De Souza, L. A. P. S. / 2011 / The effect of the partially restricted sit-to-stand task on biomechanical variables in subjects with and without Parkinson's disease / Journal of Electromyography and Kinesiology 21(5):719~726

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