지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Objective: The purpose of this study was to determine the asymmetry of vertical ground reaction force (GRF) components between dominant and non-dominant legs in rested and fatigued states in prolonged running. Method: Twenty healthy men, heel strikers, were included (age: $24.00{\pm}5.0years$; height: $176.1{\pm}6.0cm$; body mass: $69.0{\pm}6.0kg$) in this study. Subjects ran on an instrumented treadmill for 130 minutes. During treadmill running, GRF data (1,000 Hz) were collected for 20 strides at five minutes (rested) and 125 minutes (fatigued) running while they were unaware of collecting data. Asymmetry indexes (ASI) were calculated to quantify the asymmetry magnitude in rested and fatigued states. Paired t-test was used to verify the differences between dominant and non-dominant legs in rested and fatigued states. In addition, one-way repeated measure analysis of variance was applied for comparison of ASI of both states. The level of significance was set at p < .05. Results: Passive force peak magnitude, loading rate, and impulse affecting the development of running injury were found significantly greater in dominant leg than in non-dominant leg at rested state (p < .05). However, passive force peak time and active force peak magnitude were found significantly different between legs in fatigued state (p < .05). To determine changes in percentage of asymmetry between legs in both states, ASI was used. ASI for all variables increased in fatigued state; however, no significant differences were found between both states. Conclusion: This study found that fatigue did not affect differences in vertical GRF between dominant and non-dominant legs and asymmetry changes.
목차
등록된 정보가 없습니다.
참고문헌 (53)
참고문헌 신청
Arampatzis, A. / 1999 / The effect of speed on leg stiffness and kinetics in human running / Journal of Biomechanics 33(12):1349~1353
Avela, J. / 1999 / Reduced reflex sensitivity persists several days after long-lasting stretch-shortening cycle exercise / Journal of Applied Physiology 86:1292~1300
Baker, J. / 1972 / Fatigue fractures : Biomechanical considerations / Journal of Bone and Joint Surgery 54:1345
Bredeweg, S. W. / 2013 / Differences in kinetic asymmetry between injured and noninjured novice runners : A prospective cohort study / Gait & Posture 37:847~852
Bredeweg, S. / 2011 / No relationship between running related injuries and kinetic variables / British Journal of Sports Medicine 45:310~384
Avela, J. / 1999 / Reduced reflex sensitivity persists several days after long-lasting stretch-shortening cycle exercise / Journal of Applied Physiology 86:1292~1300
Baker, J. / 1972 / Fatigue fractures : Biomechanical considerations / Journal of Bone and Joint Surgery 54:1345
Bredeweg, S. W. / 2013 / Differences in kinetic asymmetry between injured and noninjured novice runners : A prospective cohort study / Gait & Posture 37:847~852
Bredeweg, S. / 2011 / No relationship between running related injuries and kinetic variables / British Journal of Sports Medicine 45:310~384
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