노인의 장애물 보행 시 장애물 높이에 의한 압력중심 이동시간의 차이

Time Difference of the COP Displacement according Obstacle Height during Obstacle Crossing in Older Adults

  • 박설 (대구가톨릭대학교 대학원 물리치료학과) ;
  • 김경 (대구대학교 재활과학대학 물리치료학과) ;
  • 박지원 (대구가톨릭대학교 의료과학대학 물리치료학과)
  • Park, Seol (Department of Physical Therapy, General Graduate School, Catholic University of Daegu) ;
  • Kim, Kyoung (Department of Physical Therapy, College of Rehabilitation Sciences, Daegu University) ;
  • Park, Ji-Won (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu)
  • 투고 : 2011.03.03
  • 심사 : 2011.04.05
  • 발행 : 2011.04.25

초록

Purpose: This study examined the difference in the center of pressure (COP) displacement time in older adults according to the obstacle height during stance at each sub.phase when crossing obstacles. Methods: Fifteen older adults were enrolled in this study (${\geq}65$ years of age). The F-scan was used to measure the COP displacement time when crossing a 0, 10 and 40cm obstacle, and the stance phase was divided into 4 sub-phases according to the foot contact pattern. Results: During the stance phase, the COP displacement time increased with increasing obstacle height. During the mid-stance, terminal stance and pre-swing except for the loading response, there were significant differences in the COP displacement time according to the obstacle height. Conclusion: This study suggests that older adults show differences in the COP displacement time according to the stance sub-phase while crossing obstacles, and they use different mechanisms according the sub-phases to maintain balance during obstacle crossing.

키워드

참고문헌

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