Degree Name

Master of Science (MS)

Semester of Degree Completion


Thesis Director

John D. (Jake) Emmett


The purpose of this study was to determine if critical power (CP) can be used to predict and monitor swimming performance. Fifteen female collegiate swimmers from Eastern Illinois University volunteered as subjects for this study. CP was measured on an arm ergometer. Freestyle performances in the 50 and 100 yard distances were also measured. All three tests were measured both pre- and post-season. Results indicated that CP can predict performance in the 50 and 100 yard freestyle swims. Those with higher CP will swim faster. CP can monitor improvement in 50 yard times. CP is not a good indicator of improvement in the 100 yard times. This may be because the 100 yard swim uses more energy from the lactic acid system while CP may be a better indicator of potential energy from the ATP-PC system.