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When the quadriceps contact what also must happen at the same time? A. The gastrocnemius must contract. B. The hamstrings must relax. C. The hamstrings must contact. D. The gastrocnemius must relax.
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When the quadriceps contact what also must happen at the same time?

A. The gastrocnemius must contract.

B. The hamstrings must relax.

C. The hamstrings must contact.

D. The gastrocnemius must relax.

User Ivan Voroshilin
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4.1k points

1 Answer

2 votes

Answer:

B. The hamstrings must relax.

Step-by-step explanation:

When the quadriceps contact, the hamstrings must relax at the same time.

User Shoesel
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