Viscoelastic stress relaxation in the hamstrings before and after a 10-week stretching program.

Abstract:

INTRODUCTION:We investigated the viscoelastic stress relaxation response before and after a 10-week hamstrings static stretch program. METHODS:The maximal range of motion (ROMmax ) and maximal torque (Torquemax ) were assessed before and after a 10-week stretching program. Six 30-s static stretches at a predetermined torque were performed, and the relative change in stress relaxation was examined. RESULTS:ROMmax and Torquemax increased by 53% and 82%, respectively (P < 0.001). The relative stress relaxation (RSR) decreased significantly for repetition 1 when comparing the pretest (25%) and posttest (21%) values (P = 0.003). A significant decrease was also observed for repetitions 2 and 3 (P < 0.014), with no significant difference in repetitions 4-6 (P > 0.056). CONCLUSIONS:Individuals who participated in a 10-week hamstrings passive-static stretch program had a reduced RSR response. A higher stretch intensity or longer duration may be necessary to achieve RSRs similar to those reported before the stretch program.

journal_name

Muscle Nerve

journal_title

Muscle & nerve

authors

Peixoto GH,Andrade AG,Menzel HJ,Araújo SR,Pertence AE,Chagas MH

doi

10.1002/mus.24593

subject

Has Abstract

pub_date

2015-05-01 00:00:00

pages

761-4

issue

5

eissn

0148-639X

issn

1097-4598

journal_volume

51

pub_type

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