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The Use of an 8-Week Mixed-Intensity Interval Endurance-Training Program Improves the Aerobic Fitness of Female Soccer Players

Clark, James E

Journal of Strength & Conditioning Research: July 2010 - Volume 24 - Issue 7 - pp 1773-1781
doi: 10.1519/JSC.0b013e3181ce2495
Original Research

Clark, JE. The use of an 8-week mixed-intensity interval endurance-training program improves the aerobic fitness of female soccer players. J Strength Cond Res 24(7): 1773-1781, 2010-The purpose of this study is to examine improvements in cardiorespiratory fitness (V̇o2) after the use of a mixed-intensity interval endurance-training (MI-ET) program in female soccer players, to validate the MI-ET program as an appropriate training regimen to improve cardiorespiratory fitness (V̇o2) in soccer players. 32 female soccer players (average 18.66 ± 0.31 years) were recruited from a group of currently conditioning local U-19 and college soccer teams and randomly assigned to participate in an 8-week periodized training program that involved either the MI-ET program or the continuation of a current endurance-training (ET) program. Analysis of variance indicates no differences in V̇o2 values within the group of athletes before participating in the exercise program. After the 8 weeks of training, the MI-ET group of athletes had significantly greater average V̇o2 values (62.13 ± 0.96 ml O2·kg−1·min−1 vs. 57.27 ± 1.59 ml O2·kg−1·min−1), p = 0.015, along with a greater group average of change in V̇o2 (12.44 ± 0.92 ml O2·kg−1·min−1 vs. 7.72 ± 0.99 ml O2·kg−1·min−1), p < 0.001. The MI-ET program is shown to be a valid means to improve aerobic fitness as indicated by the MI-ET group exhibiting significantly greater V̇o2 measures after training.

Department of Biology, Division of Natural Sciences, Mt. San Antonio College, Walnut, California

Address correspondence to James E. Clark, jeclark@mtsac.edu.

© 2010 National Strength and Conditioning Association