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When the quadriceps contract, what also must happen at the same time? . a. The gastrocnemius must contract.. b. The gastrocnemius must relax.. c. The hamstrings must contract.. d. The hamstrings must relax.
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When the quadriceps contract, what also must happen at the same time? . a. The gastrocnemius must contract.. b. The gastrocnemius must relax.. c. The hamstrings must contract.. d. The hamstrings must relax.

User Dewal Tewari
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2 Answers

3 votes

Answer:

The anwser is D

Step-by-step explanation:

Hamstrings must relax

User Januszm
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7.8k points
6 votes
Hello!

When the quadriceps contract his opposing muscle must relax, so, the hamstrings must relax. Letter d)

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User Kina
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