Plyometric exercises involve eccentric muscle loading and concentric
contraction.
Plyometric exercises such as skipping ,jump squats etc exert force on the
muscle to the maximum within a short period of time and helps to increase
strength , power and endurance.
Plyometric exercises include concentric contraction in which the muscles
meets the resistance then remains stable with a corresponding shortening
of the muscle.
In eccentric contraction, the muscle lengthens and subsequently expands
as a result of the resistance becoming higher than the force the muscle is
producing during the exercise.
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