When performing a seated leg extension, which muscle group is the primary antagonist during the concentric phase?

Name: When performing a seated leg extension, which muscle group is the primary antagonist during the concentric phase?
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Question

Quizplus · Accepted Answer

During the concentric phase of a seated leg extension, the quadriceps are contracting to lift the weight. Therefore, the hamstrings are the primary antagonist, as they are being stretched and working eccentrically to control the movement.

When Performing a Seated Leg Extension, Which Muscle Group Is