HMS, BM EQ-Bank 28 MC

During a push-up, the pectoralis major:

Contracts eccentrically during the downward phase and concentrically during the upward phase.
Contracts concentrically during the downward phase and eccentrically during the upward phase.
Acts as a stabiliser throughout the entire movement.
Works as an antagonist to the deltoid muscle.

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\(A\)

Show Worked Solution

A is correct: Pectoralis major contracts eccentrically lowering, concentrically pushing up.

Other Options:

B is incorrect: Reverses the contraction types
C is incorrect: Pectoralis major is a prime mover, not stabiliser
D is incorrect: Both muscles work together as agonists