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J Strength Cond Res. 2019 Oct;33(10):2694-2703. doi: 10.1519/JSC.0000000000002260.

Combined Effects of Static Stretching and Electrical Stimulation on Joint Range of Motion and Muscle Strength.

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1
Research Center of Health, Physical Fitness and Sports, Nagoya University, Chikusa-ku, Nagoya, Japan.

Abstract

Mizuno, T. Combined effects of static stretching and electrical stimulation on joint range of motion and muscle strength. J Strength Cond Res 33(10): 2694-2703, 2019-The purpose of this study was to examine the effects of the combination of static stretching (SS) and electrical stimulation (ES) for 8 weeks on joint range of motion (ROM), muscle strength, and muscle architecture. Thirty-one subjects were divided into 3 groups: the SS combined with ES (SS + ES) group, SS group, and control group. The SS + ES group performed calf stretching simultaneously with ES to the gastrocnemius medialis, whereas the SS group performed calf stretching only. The training regimen consisted of four 30-second sets of stretching, with 30-second rest intervals, 3 days per week for 8 weeks. The control group did not perform any intervention exercise. Before and after training, measurements were taken to determine the ankle ROM, plantar flexion 1 repetition maximum strength, muscle thickness, pennation angle, and circumference of the lower leg. The results showed that 8 weeks of training led to significant improvements in the ankle ROM and muscle thickness in both the SS + ES and SS groups. There were significant increases in plantar flexion 1 repetition maximum strength and pennation angle in all 3 groups. For all parameters, there was no difference between the SS + ES and SS groups. These results clarify that 8 weeks of SS improves joint ROM and muscle thickness and shows that there is no additional benefit gained by combining ES with SS in this particular training regime.

PMID:
29023326
DOI:
10.1519/JSC.0000000000002260
[Indexed for MEDLINE]

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