俯屈，初产妇胎头下降速度较经产妇慢，系因子宫颈扩张缓慢及软组织阻力大的缘故。
棘突顶端的肥大可能发生在老年人，尤其是那些有需要长期背部俯屈的职业史病人。
Hypertrophy of the tips of the spinous processes may occur in elderly persons especially in those with occupational history of long periods of back flexion.
众多大型比赛中，屈体分腿跳成俯撑因分值高而被频繁使用。
At major competition, picked straddle jumping into front support is used frequently because of its 'high score.
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