About a third had at least one foot that pronated—rolled inward when running—or supinated—rolled outward.

至少3分之1的人有脚是内翻，即跑时脚向内翻，或是，即跑时脚向翻。

On the other hand, the median nerve innervates pronator teres and pronator quadratus, which pronate the forearm turning the palm posteriorly.

另方面，正中神经支配前圆肌与前方肌，使前臂前，掌心向后转。