Center for Injury Biomechanics, Virginia Tech-Wake Forest University, Blacksburg, VA, USA.
Clin J Sport Med. 2010 Sep;20(5):344-9. doi: 10.1097/JSM.0b013e3181ed7e50.
To investigate the effects of footwear on Achilles tendon tension by directly measuring Achilles tendon tension and dorsiflexion range of motion.
A total of 48 matched pair tests were performed comparing the effects of shoe type (high-top vs low-top) for each shoelace configuration (tied vs untied). These were performed using the Achilles tendons of 4 human cadaver lower extremities that were instrumented with a customized load cell designed to measure tension. The lower extremity was inverted in a custom testing apparatus designed to inertially invoke dorsiflexion of the foot, putting the Achilles tendon in tension.
Research laboratory.
Left and right lower extremities of 2 human cadavers.
None. Independent variables were shoe type and shoelace configuration.
Achilles tendon tension and dorsiflexion range of motion.
High-top shoes significantly reduced peak Achilles tendon tension by an average of 9.9% when compared with low-top shoes. Tied laces significantly reduced peak tension for low-top (3.7%) and high-top (12.8%) shoes when compared with untied laces. With tied laces, high-top shoes significantly reduced peak dorsiflexion angle by an average of 7.2% when compared with low-top shoes. Tied laces with high-top shoes significantly reduced peak dorsiflexion angle by an average of 4.7% when compared with untied laces. A P value of 0.05 was determined to be significant.
This study offers valuable insight that footwear can affect Achilles tendon loading during dorsiflexion.
通过直接测量跟腱张力和背屈活动范围来研究鞋类对跟腱张力的影响。
共进行了 48 对匹配测试，比较了不同鞋类（高帮与低帮）和鞋带系法（系紧与不系紧）对跟腱张力的影响。使用定制的测力传感器对 4 个人体下肢尸体的跟腱进行了测试，该传感器设计用于测量张力。将下肢倒置在定制的测试设备中，该设备设计用于惯性地使足部背屈，使跟腱处于张力状态。
研究实验室。
2 个人体尸体的左、右下肢。
无。自变量为鞋类和鞋带系法。
跟腱张力和背屈活动范围。
与低帮鞋相比，高帮鞋可使跟腱最大张力平均降低 9.9%。与不系鞋带相比，系紧鞋带可使低帮（3.7%）和高帮（12.8%）鞋的跟腱最大张力降低。系紧鞋带时，与低帮鞋相比，高帮鞋的最大背屈角度平均降低 7.2%。与不系鞋带相比，高帮鞋系紧鞋带时的最大背屈角度平均降低 4.7%。P 值<0.05 被认为具有统计学意义。
本研究提供了有价值的见解，即鞋类可以影响背屈时跟腱的负荷。
