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Noyes FR, Barber-Westin SD, Tutalo Smith S, Campbell T:A Training Program to Improve Neuromuscular

Indices in Female High School Volleyball Players. J Strength Conditioning Research 25: 2151-2160, 2011.

Volleyball Paper, JSCR 2011


The purpose of this study was to determine if a sports-specific training program could improve neuromuscular indices in female high school volleyball players. We combined components from a previously published knee ligament injury prevention intervention program for jump and strength training with additional exercises and drills to improve speed, agility, overall strength, and aerobic conditioning. We hypothesized that this sports-specific training program would lead to significant improvements in neuromuscular indices in high school female volleyball players. Thirty-four athletes (age 14.5 years + 1.0) participated in the supervised 6-week program, 3 days a week for approximately 90-120 minutes per session. The program was done on the school’s volleyball court and weight room facilities. The athletes underwent a video drop-jump test, multi-stage fitness test, vertical jump test, and sit-up test before and after training. A significant increase was found in the mean VO2max score (p < 0.001), as 73% of the athletes improved this score. A significant improvement was found in the sit-up test (p = 0.03) and in the vertical jump test (p = 0.05), as 68% of the athletes increased their scores. In the drop-jump video test, significant increases were found in both the mean absolute knee separation distance (p = 0.002) and in the mean normalized knee separation distance (p = 0.04), indicating improved lower limb alignment on landing. No athlete sustained an injury or developed an overuse syndrome during training. This program significantly improved lower limb alignment on a drop-jump test, abdominal strength, estimated maximal aerobic power, and vertical jump height and may be implemented in high school female volleyball programs.

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