Unilateral plantar flexors static-stretching effects on ipsilateral and contralateral jump measures

The aim of this study was to evaluate the acute effects of unilateral ankle plantar flexors static-stretching (SS) on the passive range of movement (ROM) of the stretched limb, surface electromyography (sEMG) and single-leg bounce drop jump (SBDJ) performance measures of the ipsilateral stretched an...

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Bibliographic Details
Published in:Journal of sports science & medicine 2015-06, Vol.14 (2), p.315-321
Main Authors: da Silva, Josinaldo Jarbas, Behm, David George, Gomes, Willy Andrade, Silva, Fernando Henrique Domingues de Oliveira, Soares, Enrico Gori, Serpa, Érica Paes, Vilela Junior, Guanis de Barros, Lopes, Charles Ricardo, Marchetti, Paulo Henrique
Format: Article
Language:English
Subjects:
Ankle
Biomechanics
Employment
Exercise
Fatigue
Force
Jumping
Medicine
Muscle function
Physiological aspects
Physiology
Sports medicine
Strength training
Studies
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Summary:The aim of this study was to evaluate the acute effects of unilateral ankle plantar flexors static-stretching (SS) on the passive range of movement (ROM) of the stretched limb, surface electromyography (sEMG) and single-leg bounce drop jump (SBDJ) performance measures of the ipsilateral stretched and contralateral non-stretched lower limbs. Seventeen young men (24 ± 5 years) performed SBDJ before and after (stretched limb: immediately post-stretch, 10 and 20 minutes and non-stretched limb: immediately post-stretch) unilateral ankle plantar flexor SS (6 sets of 45s/15s, 70-90% point of discomfort). SBDJ performance measures included jump height, impulse, time to reach peak force, contact time as well as the sEMG integral (IEMG) and pre-activation (IEMGpre-activation) of the gastrocnemius lateralis. Ankle dorsiflexion passive ROM increased in the stretched limb after the SS (pre-test: 21 ± 4° and post-test: 26.5 ± 5°, p < 0.001). Post-stretching decreases were observed with peak force (p = 0.029), IEMG (P
ISSN:1303-2968
1303-2968