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A member asked:
What happens when flexor and extensor muscles strongly contract at same time?
A doctor has provided 1 answer
Stiffen & load joint: Think of your knee as a great example. Both the quadriceps and hamstring span across the knee joint. If you contract both the quadricep (extensor) and hamstring muscles (flexor), your essentially lock your knee in a fixed position or at least significantly increase the load felt across your knee joint throughout an active arc of motion.
Answered 9/28/2016
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A member asked:
Hi, sirwhen we holding 5kg mass steady both flexor and extensor contracted but how about when lifting the mass upwards?Will the extensor also contract?
4 doctors weighed in across 2 answers
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