stretch-shortening cycle

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stretch-shortening cycle

An eccentric muscle contraction followed immediately by a concentric contraction of the same muscle group. The elastic potentiation that occurs during the eccentric phase increases the force of output of the concentric contraction. These exercises replicate functional movement patterns and are typically used in the advance phase of rehabilitation, particularly in sports rehab. Exercises incorporating this phenomenon are called plyometrics. See: plyometrics
See also: cycle
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Since SJ is considered a measurement of concentric power output of the quadriceps, and CMJ involves a rapid eccentric action followed by a concentric action of the quadriceps, the ratio of jump height between the two may be an effective determinant of the capacity to produce fast stretch shortening cycle (SSC) movements.
Effects of Static Versus Ballistic Stretching on Hamstring:Quadriceps Strength Ratio and Jump Performance in Ballet Dancers and Resistance Trained Women
(2012) The drop height determines neuromuscular adaptations and changes in jump performance in stretch shortening cycle training.
Relationship between Achilles Tendon Stiffness and Ground Contact Time during Drop Jumps
Agility requires the integration of several biomotor skills such as dynamic balance, muscular coordination, effective core development, and stretch shortening cycle development (Brown and Vescovi 2003).
Effect of vertical jump on quickness, agility, acceleration and speed performance in children swimmer
Clearly, the eccentric-only programme is not specific to the stretch shortening cycle (SSC) nor is it maximally loading the tendon through the functional range (see table 2).
Eccentric loading for Achilles tendinopathy--strengthening or stretching?
Stretch shortening cycle fatigue: Interactions among joint stiffness, reflex, and muscle mechanical performance in the drop jump.
Influence of fatigue in neuromuscular control of spinal stability

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