The Oxygen Cost of a 20-Minute Steady-State Jog for High School Boys and Girls

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Abstract
This study evaluated the aerobic demands of the 20-minute steady-state jogging speeds for 15 high school students. All subjects performed a discontinuous treadmill test that included submaximal speeds, the Fit Youth Today criterion referenced speeds, and finally a run to voluntary fatigue. Stages lasted 5 minutes. Preliminary data indicated that both groups averaged between 87% (the 9 boys) and 93 % (the 6 girls) of their respective peak oxygen consumption at the criterion referenced speeds during treadmill testing. According to the American College of Sports Medicine guidelines for healthy adults, these intensities represent the upper threshold for aerobic conditioning, and high exercise intensities can increase the risk of injury. Although the results of this study are preliminary in nature and based on a small sample size, we suggest that the criterion referenced distances (speeds) for the FYT 20-minute steady-state jog may need modification.

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