Lee K H, Matteliano A, Medige J, Smiehorowski T
Arch Phys Med Rehabil. 1987 May;68(5 Pt 1):298-301.
The effects of heel lifts on activity in gastrocnemius and tibialis anterior muscles were analyzed by signal averaged EMG. The goal was to formulate a more rational approach to prescribing heel lifts for conditions such as tendoachilles bursitis and postoperative management of heel cord rupture. Thirteen men walked on a level floor and a treadmill with heel heights of zero, 1.9, 3.8, and 5.7 cm. Results showed that as heel height increased there was a significant decrease (p = 0.03) in gastrocnemius EMG activity and an increase (p = 0.04) in tibialis anterior EMG activity during level floor walking. Treadmill walking produced less remarkable decreases in gastrocnemius activity and increases in tibialis anterior activity, indicating differences between treadmill and level walking. We conclude that heel lifts of 1.9 to 5.7 cm for men decrease gastrocnemius muscle activity, thereby reducing tension in the Achilles tendon during normal level walking. Therefore, therapeutic use of heel lift is justified for men with tendoachilles bursitis, tenosynovitis of Achilles tendons, and postoperative management of ruptured Achilles tendons.
通过信号平均肌电图分析了足跟抬高对腓肠肌和胫前肌活动的影响。目的是为跟腱滑囊炎和跟腱断裂术后处理等情况制定一种更合理的足跟抬高处方方法。13名男性在水平地面和跑步机上行走，足跟高度分别为0、1.9、3.8和5.7厘米。结果显示，在水平地面行走时，随着足跟高度增加，腓肠肌肌电图活动显著降低（p = 0.03），而胫前肌肌电图活动增加（p = 0.04）。跑步机行走时，腓肠肌活动的降低和胫前肌活动的增加不太明显，表明跑步机行走和水平地面行走存在差异。我们得出结论，男性足跟抬高1.9至5.7厘米可降低腓肠肌活动，从而在正常水平行走时减少跟腱的张力。因此，足跟抬高疗法对于患有跟腱滑囊炎、跟腱腱鞘炎的男性以及跟腱断裂术后处理是合理的。
