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Effects of Proprioceptive Neuromuscular Facilitation Stretching and Static Stretching on Maximal Voluntary Contraction

Miyahara, Yutetsu1,2; Naito, Hisashi2,3; Ogura, Yuji2,4; Katamoto, Shizuo2,3; Aoki, Junichiro2,3

Journal of Strength & Conditioning Research: January 2013 - Volume 27 - Issue 1 - p 195–201
doi: 10.1519/JSC.0b013e3182510856
Original Research

Abstract: Miyahara, Y, Naito, H, Ogura, Y, Katamoto, S, and Aoki, J. Effects of proprioceptive neuromuscular facilitation stretching and static stretching on maximal voluntary contraction. J Strength Cond Res 27(1): 195–201, 2013—This study was undertaken to investigate and compare the effects of proprioceptive neuromuscular facilitation (PNF) stretching and static stretching on maximal voluntary contraction (MVC). Thirteen male university students (age, 20 ± 1 years; height, 172.2 ± 4.6 cm; weight, 68.4 ± 6.7 kg; mean ± SD) completed 3 different conditions on 3 nonconsecutive days in randomized order: static stretching (SS), PNF stretching (PNF), and no stretching (control, CON). Each condition consisted of a 5-minute rest accompanied by one of the following activities: (a) control, (b) SS, or (c) PNF stretching. The hip flexion range of motion (ROM) was evaluated immediately before and after the activity. The MVC of knee flexion was then measured. Surface electromyography was recorded from the biceps femoris and vastus lateralis muscles during MVC tests and stretching. Although increases in ROM were significantly greater after PNF than after SS (p < 0.01), the decreases in MVC were similar between the 2 treatments. These results suggest that, although PNF stretching increases ROM more than SS, PNF stretching and SS is detrimental to isometric maximal strength.

1Department of Sports and Health Sciences, Faculty of Human Sciences, University of East Asia, Yamaguchi, Japan

2Graduate School of Health and Sports Science, Juntendo University, Tokyo, Japan

3Institutes of Health and Sports Science and Medicine, Juntendo University, Tokyo, Japan

4Department of Physiology, St. Marianna University School of Medicine, Kawasaki, Japan

Address correspondence to Hisashi Naito,

© 2013 National Strength and Conditioning Association