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Article
Quantifying Changes in Squat Jump Height Across a Season of Men's Collegiate Soccer
The Journal of Strength and Conditioning Research
  • Matt L. Sams, East Tennessee State University
  • Kimitake Sato, East Tennessee State University
  • Brad H. DeWeese, East Tennessee State University
  • Adam L. Sayers, East Tennessee State University
  • Michael H. Stone, East Tennessee State University
Document Type
Article
Publication Date
8-1-2018
Description

The purposes of this study were to examine the effectiveness of an athlete monitoring program in managing athlete neuromuscular fatigue across a men's collegiate soccer season as measured by changes in squat jump (SJ) height and to compare possible changes with the session rating of perceived exertion (sRPE) training load (TL). Eighteen outfield Division I men's college soccer players performed SJ testing before each game of the fall season in addition to a baseline measurement at the start of preseason. The athletes provided sRPE values after all training sessions, weight-training, and games. Linear mixed modeling was used to compare changes in SJ height across the season with the baseline, and a correlation coefficient and single-lag cross-correlation coefficient were calculated between TL and changes in SJ height. No statistically significant decreases in SJ height occurred across the season, although a moderate practical decline occurred after the preseason (−1.6 cm, effect size = −0.70). The correlation between TL and changes in SJ height was statistically nonsignificant, whereas the cross-correlation was significant (r = 0.18, p = 0.48 and r = 0.55, p = 0.02, respectively). The athlete monitoring program was successful in managing the athletes' neuromuscular fatigue across the season as evidenced by the maintenance of SJ height and positive relationship between TL and changes in SJ height. Thus, SJ monitoring may serve as a useful fatigue monitoring tool for collegiate soccer athletes. Future study is needed, relating changes in vertical jump performance to other markers of athlete preparedness and performance.

Disciplines
Citation Information
Matt L. Sams, Kimitake Sato, Brad H. DeWeese, Adam L. Sayers, et al.. "Quantifying Changes in Squat Jump Height Across a Season of Men's Collegiate Soccer" The Journal of Strength and Conditioning Research Vol. 32 Iss. 8 (2018) p. 2324 - 2330 ISSN: 1064-8011
Available at: http://works.bepress.com/michael-stone/416/