Publication:

鞋墊介入大專女子拔河選手足底壓力與平衡之變化

足弓式鞋墊可給予足弓適當的支撐，其功能不但可達到調節吸震作用及平衡作用的效果，更可以提升運動的成績，足底壓力便是一種指標性的觀察變項。有關拔河選手足底壓力與平衡的相關研究甚少本研究目的在於了解女子拔河選手穿著鞋墊後對於壓力中心的位移與足底壓力之壓力峰值（peak pressure, PP）是否有差異。以7名臺灣體育運動大學女子拔河代表隊隊員（20.09 ± 0.6歲；159.43cm ± 7.14cm；64.36kg ± 7.94kg），進行三周及六周的鞋墊使用以觀察其平衡能力與足底壓力的變化，以ONE WAY ANOV比較各組之間各項基本資料之差異。結果顯示：受測者靜態站立姿勢下的壓力中心位移面積以及路徑長在統計上雖未達到顯著差異，但前測與後測的標準差皆有下降，且足底底壓力經過六周的壓力峰值變化有呈現下降之趨勢在左腳壓力百分比(p=0.029)、左腳後側區百分比(p=0.035)、右腳百分比(p=0.030)在統計上皆有達到顯著水準。而在壓力峰值百分比的呈現上左右腳的藍綠兩色區(p=0.005,p=0.048 p=0.005,p=0.023)及雙腳的藍色區綠色區以及黃色區(p=0.000,p=0.003,p=0.047)皆有達到統計上的顯著水準。表是使用鞋墊之後足底壓力的平均分散有著實的幫助，但在靜態平衡能力上卻未能達到有效的提升。討論結果發現由於本研究受試者穿著時間過短導致足底壓力產生變化穩定性卻無明顯提升之結果，建議未來研究時間至少增加至12周以便觀察前後之差異。

An orthotic insole supports the arches of the foot, absorbing shock, balancing the leg and contributing to athletic performance, which is measurable by foot pressure as a key variable. Given the limited literature on tug-of-war competitors’ foot pressure and balance, this study aims to ascertain the difference between the center of pressure displacement and the peak pressure (PP) resulting from a group of tugging-war female athletes in orthotic insoles.

7 female members of the varsity tug-of-war team (20.09 ± 0.6years old; 159.43cm ± 7.14cm; 64.36kg ± 7.94kg) of National Taiwan College of Physical Education, while at their routine practice, were enrolled to wear orthotic insoles for 3 and 6 weeks respectively, during which the changes in their balance performance and feet’s pressure were compared by the implementation of one-way ANOVA. The results suggest that when the subjects stood still, there was no statistical sig-nificance in the difference between the sway area and path length in the center of pressure on their feet. However, standard deviations in the pre-and post-tests both decreased, along with the falling PP on the their feet 6 weeks later. The psi results on the left feet (p=0.029), on the left heels (p=0.035) and on the right feet (p=0.030) were all statistically significant. So were the PP results on the blue and green areas of the left feet (p=0.005; p=0.048, respectively) and those of the right ones (p=0.005; p=0.023, respectively), as well as on the blue (p=0.000), green (p=0.003) and yellow (p=0.047) areas of both feet.

The implication is that orthotic insoles offer proportional pressure distribution on the feet but a slight increase in static balance. However, it was found that because the subjects spent an inadequate period in the orthotic insoles, their balance performance showed no significant improvement though their feet pressure varied. It is suggested that future studies extend the testing period to at least 12 weeks to derive results of more significance.