Determining the minimum number of passive stretches necessary to alter musculotendinous stiffness
Deutscher übersetzter Titel: | Bestimmung der kleinsten Anzahl passiver Dehnungen zur Änderung muskulotendinöser Steifigkeit |
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Autor: | Ryan, Eric D.; Herda, Trent J.; Costa, Pablo B.; DeFreitas, Jason M.; Beck, Travis W.; Stout, Jeffrey; Cramer, Joel T. |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 27 (2009), 9, S. 957-961, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640410902998254 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201409008584 |
Quelle: | BISp |
Abstract
In this study, we examined the minimum number of constant-torque passive stretches necessary to reduce musculotendinous stiffness. Thirteen healthy individuals (mean age 22 years, s = 3; stature 1.67 m, s = 0.1; mass 66 kg, s = 13 kg) volunteered to participate in the investigation and underwent four 30-s constant-torque passive stretches of the plantar flexor muscles. Musculotendinous stiffness was examined from the angle–torque curves generated prior to the passive stretches, at the beginning of each 30-s stretch, and immediately following the four 30-s passive stretches. The results indicated that musculotendinous stiffness of the plantar flexors was reduced following two 30-s constant-torque passive stretches (P < 0.05) compared with the pre- musculotendinous stiffness assessment. Musculotendinous stiffness remained depressed following the third and fourth stretches, but did not decrease further. These findings suggest that two 30-s bouts of constant-torque passive stretching may be necessary to cause a significant decrease in musculotendinous stiffness of the plantar flexor muscles. Verf.-Referat