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

至少3分之1的人有一只是内翻，内翻，或是外旋，外翻。

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

另一方面，正中神经支配旋前圆肌与旋前方肌，使前臂旋前，掌心后旋转。