U.S. Sports Academy
Authors: Joanne Spalding¹, Andrew R. Dotterweich², Jeremy Gentles², Brandi Eveland-Sayers², Adam L. Sayers²
¹Department of Health & Human Performance, Milledgeville, United States of America
²Department of Sport, Exercise, Recreation, and Kinesiology, East Tennessee State University, Johnson City, United States of America
Andrew R. Dotterweich
East Tennessee State University
Department of Sport, Exercise, Recreation and Kinesiology
P.O. Box 70671
Johnson City, TN 37614
Andy R. Dotterweich, PhD, is a Professor of Exercise Science at East Tennessee State University. His research interests include youth sport, recreation management and policy, physical activity, long-term athlete development and community development.
Joanne Spalding, PhD, is a lecturer in Exercise Science at Georgia College and State University. Her research interests include long term athletic development and monitoring at the club, high school, and college level.
Jeremy Gentles, PhD is an Associate Professor of Sport Science and Coach Education at East Tennessee State University in Johnson City, TN. His research interests include long term athlete monitoring, biochemical responses to exercise and sport technology.
Brandi Eveland-Sayers, PhD, is an Associate Professor of Exercise Science at East Tennessee State University. Her research interests include physical literacy, exercise adherence in youth, and long term athlete development.
Adam L. Sayers, PhD, is a faculty member in Global Sport Leadership at East Tennessee State University. He is also a network professional sport scientist for the United States Soccer Federation Youth Women’s National Teams, and a national instructor for USSF Coach Education.
Changes in Vertical Jump Height and Sprint Time During a Congested Match Schedule in Youth Female Soccer Players
Purpose: The purpose of this study was to examine changes in jump height and sprint time and to assess the relationship between relative changes in jump height and accumulated training load during a congested match schedule in youth female soccer players. Methods: This study included data from 14 youth female soccer players who performed countermovement jump testing pre- and post-match, post-tournament, as well as sprint testing pre- and post-tournament. A one-way repeated measures ANOVA was conducted to compare changes in jump height over the course of the tournament. A paired sample t-test was performed to compare sprint time between pre- and post-tournament, and Pearson product moment correlations were used to determine the relationship between percent change in jump height and accumulated training load. Results: Jump height decreased significantly (p < 0.001) between time periods during the tournament, and sprint time increased significantly (p = 0.001). There was no significant relationship between percent change in jump height and accumulated training load. Conclusion: This study found that jump height decreased over the course of the tournament and there was a significant increase in sprint time from pre- to post-tournament. Applications in Sport: These results suggest that appropriate recovery strategies and training are needed to assist players in coping with the demands of a congested youth soccer schedule.