Publication:

大專女子拔河選手於輕度登階活動下之平衡與足底壓力差異分析

本研究比較大專女子拔河選手(7名)及一般大專女學生(7名)於輕度登階活動下平衡與足底壓力之差異，並探討下肢受傷是否影響平衡、足底壓力之關聯性。將受測者細分下肢受傷組、健康組分別接受輕度登階活動後平衡能力之測驗，以跑步機步態分析系統(FDM-TB, Zebris, Germany)測量壓力中心位移面積（開、閉眼）、壓力中心位移路徑（開、閉眼）、走路站立期（左腳、右腳）、走路步長比及走路對稱性進行測驗。以SPSS12.0進行二因子重複量變異數分析兩組受測者於輕度登階活動前後平衡能力與足底壓力之差異，顯著水準為P<.05。兩組受試者在走路站立期(右腳) 的平衡的重心移動距離在輕度登階活動前後有顯著差異(F= 10.79, p <.05)，而下肢受傷組及健康組兩組在走路站立期(右腳)的平衡的重心移動距離在輕度登階活動前後有顯著差異(F= 13.93, p <.05)，靜態平衡前後之差異在輕度登階前運動員組在平衡上的穩定度優於一般組，但在輕度登動活動後，一般組的平衡能力上有大幅的提升；而下肢受傷組在輕度登階活動前在平衡上是優於健康組，但在輕度登階活動後，明顯看出平衡穩定度是大幅下降的。結論: 輕度登階對於有從事運動的運動員在短時間內在平衡與足底壓力並未能立即的顯示其差異，下肢受傷組及健康組在輕度登階活動下對於平衡表現也並未成顯著。

The study made a comparison between female college tug of war athletes (N=7) and normal female college students (N=7) in balance and foot pressure before and after doing mild stepping. The investigators also explored if there is any association between lower limb injuries and balance or foot pressure. The study subjects, divided into the lower limb injured group and the healthy group, did a balance test after mild stepping. Treadmill gait analysis system (FDM-TB, Zebris, Germany) was used to measure displacement surface area of the pressure center (eyes closed and eyes opened), displacement pathway of the pressure center (eyes closed and eyes opened), walking stance phase (left and right foot), walking step ratio, and walking symmetry. Two-factor repeated measure ANOVA (SPSS 12.0) was used for comparing the two groups’ balance ability and foot pressure before and after mild stepping. The significant level was set at 0.05. At the walking stance phase (right foot), the two groups’ balance (athletes and college students)center displacement distance differed significantly both before and after mild stepping (F= 10.79, p <.05). When comparing between the healthy and the lower limb injured groups, their balance center displacement distance at the walking stance phase (right foot) also differed significantly before and after mild stepping (F= 13.93, p <.05). For the difference between before and after static balance, the athlete group before mild stepping was better than the non-athlete group in terms of balance stability, but after mild stepping, the non-athlete group’s balance ability was substantially improved. For the lower-limb injured group, their balance before mild stepping was better than the healthy group, but after mild stepping, their balance stability dropped significantly. Taken together, in a short-term, no significant difference in balance or foot pressure was found in athletes from doing mild stepping. Neither did mild stepping cause significant differences between the lower-limb injured and the healthy groups in balance performance.