Bates B T, Osternig L R, Mason B, James L S
Am J Sports Med. 1979 Nov-Dec;7(6):338-42. doi: 10.1177/036354657900700606.
Excessive foot pronation has been speculated to be a cause of leg and foot problems among runners. Foot orthotic devices are often used to modify this condition. Examination of the records of 180 patients treated for various running injuries showed that 83 individuals (46%) were prescribed orthotic devices and that 65 of these runners (78%) were able to return to their previous running programs. In order to assess further the effects of this type of orthotic device, six runners were selected from this group and filmed using two cameras (200 frames/sec) under three conditions: (1) barefoot, (2) regular shoe, and (3) regular shoe plus orthotic device. Both the period of pronation and the amount of maximum pronation were significantly reduced by using the foot orthotic device. The data support the conclusion that foot orthotic devices can be successfully used to modify selected aspects of lower extremity mechanics during the support phase of running.
过度足内翻被推测为跑步者腿部和足部问题的一个原因。足部矫形器常被用于改善这种情况。对180名因各种跑步损伤接受治疗的患者的记录进行检查发现，83人（46%）被开了矫形器，其中65名跑步者（78%）能够恢复到之前的跑步计划。为了进一步评估这类矫形器的效果，从该组中挑选了6名跑步者，并在三种情况下使用两台摄像机（每秒200帧）进行拍摄：（1）赤脚，（2）穿普通鞋子，（3）穿普通鞋子加矫形器。使用足部矫形器后，内翻期和最大内翻量均显著减少。数据支持这样的结论，即足部矫形器可成功用于改善跑步支撑阶段下肢力学的选定方面。
