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Which exercise demonstrates both flexion and extension?.
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Which exercise demonstrates both flexion and extension?.

User Qianfg
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Answer:

To flex is to decrease the angel between parts. Flexing your muscles usually results in bringing the bones attached closer together. For example, the spine is in flexion when we bend forwards. Extension is simply the opposite, increasing the angel between parts, e.g. bending backwards.

Step-by-step explanation:

User Teovald
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