Muscles pairs - Agonists & Antagonists (GCSE PE)

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This video is about Muscles working in pairs.

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This is a very good video. However, there is incorrect in the visualisation picture of a footballer. When a footballer prepares to kick a football, their hamstrings contract to flex the knee while the quadriceps lengthens to allow the movement. The hamstrings are the agonist and the quadriceps are the antagonist. But, the audio explained correctly because explained kicking action...Thanks.

kikismegowanto