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Acute Effects of Static, Dynamic, and Proprioceptive Neuromuscular Facilitation Stretching on Muscle Power in Women

Manoel, Mateus E1; Harris-Love, Michael O2; Danoff, Jerome V1; Miller, Todd A1

Journal of Strength & Conditioning Research: September 2008 - Volume 22 - Issue 5 - pp 1528-1534
doi: 10.1519/JSC.0b013e31817b0433
Original Research

Manoel, ME, Harris-Love, MO, Danoff, JV, and Miller, TA. Acute effects of static, dynamic, and proprioceptive neuromuscular facilitation stretching on muscle power in women. J Strength Cond Res 22(5): 1528-1534, 2008-The purpose of this study was to investigate the acute effects of 3 types of stretching-static, dynamic, and proprioceptive neuromuscular facilitation (PNF)-on peak muscle power output in women. Concentric knee extension power was measured isokinetically at 60°·s-1 and 180°·s-1 in 12 healthy and recreationally active women (mean age ± SD, 24 ± 3.3 years). Testing occurred before and after each of 3 different stretching protocols and a control condition in which no stretching was performed. During 4 separate laboratory visits, each subject performed 5 minutes of stationary cycling at 50 W before performing the control condition, static stretching protocol, dynamic stretching protocol, or PNF protocol. Three submaximal warm-up trials preceded 3 maximal knee extensions at each testing velocity. A 2-minute rest was allowed between testing at each velocity. The results of the statistical analysis indicated that none of the stretching protocols caused a decrease in knee extension power. Dynamic stretching produced percentage increases (8.9% at 60°·s-1 and 6.3% at 180°·s-1) in peak knee extension power at both testing velocities that were greater than changes in power after static and PNF stretching. The findings suggest that dynamic stretching may increase acute muscular power to a greater degree than static and PNF stretching. These findings may have important implications for athletes who participate in events that rely on a high level of muscular power.

1Department of Exercise Science, The George Washington University Medical Center, Washington, District of Columbia; 2Department of HealthCare Sciences, Program in Physical Therapy, The George Washington University, Washington, District of Columbia

Address correspondence to Dr. Todd A. Miller,

© 2008 National Strength and Conditioning Association