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PLoS One. 2018 Feb 1;13(2):e0191801. doi: 10.1371/journal.pone.0191801. eCollection 2018.

Acute effects of different dynamic exercises on hamstring strain risk factors.

Author information

1
Department of Sport Performance, National Taiwan University of Sport, Taichung, Taiwan.
2
Graduate Institute of Sports Training University of Taipei, Taiwan.
3
Department of Health, Exercise Science, and Recreation Management, University of Mississippi, Mississippi, United States of America.
4
Department of Physical Education, Health and Recreation, National Chiayi University, 85 Wenlong Village, Minsyong Township, Chiayi County, Taiwan.
5
School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Zhongzheng District, Taipei City, Taiwan.

Abstract

The purpose of the study was to examine the acute effects of different dynamic exercise interventions on hamstring muscle performance. Thirty-six young men with poor hamstring flexibility were randomly assigned to three intervention groups: jogging combined with dynamic open kinetic chain stretching (DS), jogging combined with dynamic closed kinetic chain stretching (lunge with eccentric hamstring windmills, LEC), and jogging only (CON) groups. Hamstring flexibility, muscle stiffness (area under the curve, AUC), joint position sense (JPS), maximal eccentric strength (ECC), and angle of peak torque (APT) were recorded before and immediately after the exercise interventions. The results showed that the hamstring flexibility increased in DS (p < 0.001); muscle stiffness decreased in DS and was lower than jogging (p < 0.001). Moreover, ECC increased in LEC and was higher than jogging and DS (p < 0.001). APT was different among 3 groups (p < 0.001). Decreased accuracy of JPS was found in DS and jogging (p < 0.001). In conclusion, the dynamic closed kinetic chain stretching (LEC) as compared to open kinetic chain stretching (DS) or jogging group, may be an effective technique to enhance muscle performance during the pre-competition warm-up routine.

PMID:
29390001
PMCID:
PMC5794078
DOI:
10.1371/journal.pone.0191801
[Indexed for MEDLINE]
Free PMC Article

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