The movement of the thigh backward from the hip joint, straightening the angle between the torso and leg. This motion is crucial for generating power in running, jumping, and many athletic movements.
From Old English 'hype' meaning the joint where leg meets torso, combined with Latin 'extensio' meaning a stretching out. The compound term emerged in biomechanics during the 20th century as sports science developed precise terminology for joint movements.
Hip extension is the secret weapon of elite sprinters - Usain Bolt's incredible hip extension generated more power per stride than most athletes could dream of! When you see slow-motion footage of world-class runners, notice how their trailing leg kicks back dramatically behind their body - that's maximum hip extension creating the explosive force that propels them forward.
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