Construct · 1 fields · 2 citations

stretch-shortening cycle: a standalone construct

One name. One construct. A landmark on the map.

● anchor · one construct, one field Nearest construct by meaning·not indexed
stretch-shorteningcycle1 CONSTRUCTStretch-shortening cycleKOMI · PRE-STRETCH

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Neuromuscular physiology

An eccentric pre-stretch feeds into an immediate concentric action

In neuromuscular physiology, the stretch-shortening cycle is the natural muscle action in which an active muscle-tendon unit is first lengthened (an eccentric phase) and then immediately shortened (a concentric phase), as in the ground contact of running or jumping, producing more force and power in the shortening phase than if it had started from rest. Komi's 2000 Stretch-shortening cycle: a powerful model to study normal and fatigued muscle framed it as a model for everyday locomotion, and Nicol, Avela, and Komi's 2006 review traced the stretch-reflex and elastic contributions and how fatigue degrades them. The referent is the eccentric-then-concentric coupling of muscle and tendon, measured by the performance gain over a pure shortening action and by ground-contact mechanics.[1][2]

Unit
The enhancement of concentric output attributable to the preceding stretch
Recovery means
Exhaustive stretch-shortening-cycle exercise causes a characteristic deficit and delayed recovery of function, used to study neuromuscular fatigue
Measured by
Quantified by comparing stretch-shortening to pure concentric performance, and by stiffness, ground-contact time, and reflex activity

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Nearby constructs

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References

  1. Komi, P. V. (2000). Stretch-shortening cycle: A powerful model to study normal and fatigued muscle. Journal of Biomechanics, 33(10), 1197–1206. https://doi.org/10.1016/S0021-9290(00)00064-6
  2. Nicol, C., Avela, J., & Komi, P. V. (2006). The stretch-shortening cycle: A model to study naturally occurring neuromuscular fatigue. Sports Medicine, 36(11), 977–999. https://doi.org/10.2165/00007256-200636110-00004

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