Amortization Phase

Amortization period refers to the transition time between eccentric load and concentric contraction during a repetition of an exercise. A shorter amortization phase is believed to enhance performance by better utilizing stored energy from elastic connective tissue deformation and synchronizing the stretch reflex with maximum voluntary contraction. Power/plyometric exercises often benefit from a shorter amortization phase. For example, athletes doing box jumps should spend as little time as possible at the bottom of their squat stance (the amortization phase).

Amortization Phase

Amortization Phase: The transition period between eccentric load and concentric contraction during a repetition of an exercise. This term is most often used in reference to power/plyometric exercises, in which a shorter amortization phase is believed to be beneficial. The shorter amortization phase may better use the stored energy from the elastic deformation of connective tissue and enhance synchronization of myotatic (stretch) reflex with maximum voluntary contraction. For example, the athlete was cued to spend as little time as possible at the bottom of their squat stance (the amortization phase) during a set of box jumps.

Amortization Phase

Amortization Phase

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