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← Sports & EntertainmentDuring rehabilitation from an Achilles tendon rupture, what causes reduced ankle joint stability following a period of immobilization?
A)Increased muscle fiber recruitment threshold
B)Enhanced antagonist muscle co-activation
C)Impaired ankle joint proprioceptive feedback✓
D)Elevated intramuscular metabolic waste buildup
💡 Explanation
Impaired ankle joint stability arises from deficient proprioceptive feedback because immobilization reduces the sensitivity of mechanoreceptors in the ankle and surrounding tissues. Therefore, balance and coordination suffer, rather than being caused by muscular factors or waste accumulation.
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