Stretch-shortening cycle

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The stretch-shortening cycle (DVZ) is the active lengthening of the muscles immediately followed by the contraction of the same muscle. After the lengthening (by body weight or other muscles), an eccentric, then a concentric contraction occurs . Since the muscles are plastic and elastic, the contraction must occur immediately after the stretch, before the muscles have adapted to the stretch. The DVZ is particularly fast and energy-saving thanks to stored energy from previous movements . However, it is controversial in the literature where this energy is stored, whether in muscles or connective tissue . The DVZ depends on the flexibility of tendons and ligaments . Since these each have to be stretched to the limit, high stretchability is unfavorable for the development of the DVZ. In the DVZ, children develop a speed per kilogram of body weight that is not inferior to that of adults. The DVZ is trained by plyometry .

Individual evidence

  1. ↑ Albert Gollhofer: Components of the rapid strength performance in the stretching-shortening cycle. SFT-Verlag, Erlensee 1987, ISBN 3-925083-02-2 .
  2. ↑ Hans Reichel: Muscle Physiology. Springer, Heidelberg 1960, ISBN 3-642-92783-1 , p. 35.
  3. ↑ AL Hof, JW van den Berg: How much energy can be stored in human muscle elasticity? In: Movement Science. 5 (2), 1986, pp. 107-114.
  4. ^ R. Baratta, M. Solomonow: The effect of tendon viscoelastic stiffness on the dynamic performance of isometric muscle. In: Journal of Biomechanics. 24 (2), 1991, pp. 109-116.
  5. ↑ Atsuki Fukutani, Toshiyuki Kurihara, Tadao Isaka: Factors of Force Potentiation Induced by Stretch-Shortening Cycle in Plantarflexors. In: PloS one. 10.6, 2015, p. E0120579.
  6. ↑ Arnd Krüger , Sabine Weber: Is the MARGARIA KALAMEN test suitable for children from 6 to 10 years old? In: H. Ilg (Hrsg.): School sport in the primary level. EMA University, Greifswald 1991, ISBN 3-86006-040-6 , pp. 77-79.
  7. ↑ Mohamed Souhaiel Chelly, Souhail Hermassi, Roy J. Shephard: Effects of in-season short-term plyometric training program on sprint and jump. In: Journal Strength Cond Res. 29 (8), Aug 2015, pp. 2128-2136.