Kokkonen, J., & Lauritzen, S. (1995). Isotonic strength and endurance gains through PNF stretching. Medicine and Science in Sports and Exercise, 27(5), Supplement abstract 127.

Participants in a college aerobic fitness class served as an experimental and control group to evaluate the effect of a stretching routine on strength and muscular endurance gains. The results showed:

PNF stretching is likely to stimulate these types of changes due to its isometric contractions.

Implication. PNF stretching could be an alternative to, or supplemental method for standard weight training programs. As well as muscular strength and endurance improvements, the added benefits of improved flexibility would suggest that it is a productive procedure for valuable training time.

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