- 學位論文
不同跑步速度下的著地型態之分析: 鞋子效益的探討
Analysis of the different running speeds on foot strike patterns and the effect of shoes
摘要
背景與目的：跑步著地型態有分前腳掌著地、中足著地、後腳跟著地，但每個人在跑步時的著地型態是否會固定不變呢？或者因速度的增減而有所改變？故本研究欲探討在穿鞋或赤腳兩種狀態下，因跑步速度的改變是否會影響到足部著地型態。 方法：本研究招募20名有慢跑習慣的健康男性，以隨機的方式請受測者選擇先穿鞋測試或者先赤腳測試，於實驗的跑步機旁架設高速攝影機拍攝著地型態，兩個狀態都實驗後，將每個速度以慢動作輸出並播放，觀察其著地型態之變化；統計使用重複測量變異數及二因子變異數分析來進行分析，顯著水準設為P值小於0.05。 結果：當受測者於穿鞋子的狀態下，速度漸增時的著地型態大多會以後腳跟著地為主，與中足著地及前腳掌著地比，其P值等於0.00，非常具有統計的差異，顯示穿鞋子跑步時大多會以後腳跟著地；而赤腳測驗時，顯示在不同速度下，後腳跟著地、中足著地、前腳掌著地，三種著地型態內統計情形的P值皆大於0.05，並沒有達統計學上的差異，而當赤足和穿鞋子個別的著地型態統計結果來比，P值為0.00，顯示穿鞋時與赤足時的著地形態有明顯的不同。 討論與結論：對於以後腳跟著地方式跑步的跑者，不建議購買鞋底太薄的鞋子，除非加強下肢肌力來改變著地型態至前腳掌著地的方式，否則只會增加下肢受傷的可能性；如欲改變跑步著地型態，在安全的場地以赤腳的方式來跑步是不錯的選擇。
並列摘要
Background and Purpose: There are three types of strike pattern of foot when running. It is composed of forefoot strike patterns, midfoot strike patterns and rearfoot strike patterns. Would people keep the same landing pattern at different running speeds? This experiment aims to investigate whether running speed would affect the landing pattern, also considering different scenarios with or without shoes. Methods: Twenty healthy man with habit of jogging tested on a treadmill with and without shoes in random order. They were recorded by a high-speed camera to observe their strike patterns. We played the recordings in both scenarios in slow motion and observed the changes in strike patterns. Repeated measure ANOVA and two way ANOVA was used, and the significant level was P<0.05. Results: In shoes condition, with the increasing running speed, subjects preferred to adopt a heel strike pattern rather than midfoot or forefoot strike pattern. However, in barefoot condition, the strike pattern did not change with the running speed. It suggested that whether in the low or high running speed, the strike pattern was adopted according to the foot wearing conditions rather than running speed. Discussion and Conclusion: For runners who land with their heels when running, we recommend not to wear shoes with flimsy sole. Unless they strengthen lower limbs to alter strike patterns with front heel, or it would increase the chances of lower limbs injury. One would like to change the strike pattern; running with bare foot in safe location is a better choice.