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
References in periodicals archive ?
(2000) Stretch-shortening cycle: a powerful model to study normal and fatigued muscle.
In practical terms, fatigue and recovery due to stretch-shortening cycle appears to be different from concentric-only exercise.
As such, the ability to predict 50% of the variance in ranks of these skaters indicates that the stretch-shortening cycle and stretch-shortening cycle-related fatigue are probably crucial factors in figure skaters' performance.
(2003) Comparison of force-velocity relationships of vastus lateralis muscle in isokinetic and in stretch-shortening cycle exercises.
The results of our study indicated that SSE affected more significantly stretch-shortening cycle performance (height of DJ) than MVCF (Figure 1).
This could be explained by a greater decrease in musculotendinous stiffness in MOS compared with SS, resulting from passive and repetitive stretch-shortening cycles (Mutungi and Ranatunga, 1998; McNair et al., 2001; Avela et al., 2004; Yeh et al., 2007).
Conclusions: An acute use of foam roller for SMFR performed immediately prior to running may negatively affect the endurance running performance, while its use should be added before explosive motor performances that include stretch-shortening cycles.