Seasonal changes of body mass, body composition, and muscular performance in collegiate wrestlers

Int J Sports Physiol Perform. 2008 Jun;3(2):176-84. doi: 10.1123/ijspp.3.2.176.

Abstract

Purpose: The purpose of the present investigation was to examine the physiological response of collegiate wrestlers to their competitive season.

Methods: Eleven Division I collegiate wrestlers (mean +/- SD; 19.45 +/- 1.13 y) volunteered and completed 4 testing sessions throughout the course of the collegiate wrestling season. Testing sessions were conducted pre-, mid-, and postseason, as well as before the national tournament. Testing consisted of weigh-in, skinfold body composition testing, and a 50-rep concentric, isokinetic leg extension muscle endurance test (180 degrees /s). Muscular performance variables measured included peak torque, peak torque at fatigue, percent decline, and peak torque/body mass ratio.

Results: A significant increase (P < .05) of 2.9% was observed for body mass between midseason and postseason (2.38 kg). From pre- to postseason, a mean increase of 3.8% (3.1 kg) was observed for body mass. An increase (P < .05) in BF% of 2.9% was observed between prenationals and postseason. No significant differences (P > .05) were observed between consecutive time points for quadriceps peak torque; however, there was a significant increase (P < .05) between preseason and prenationals (23.39 N.m). Peak torque at fatigue was greater (P < .05) at midseason than preseason, representing an increase of 9.82 N.m. Between midseason and prenationals testing, we observed an 11% increase (P < .05) in %DCLN. Finally, we noted an increase (P < .05) from 0.6 to 0.69 in peak torque/body mass ratio between preseason and prenationals.

Conclusions: Our results indicate that while force values seem to suffer at midseason, the wrestlers compensated and were strongest just before their national competition.

MeSH terms

  • Adolescent
  • Body Composition / physiology*
  • Body Mass Index*
  • Humans
  • Male
  • Muscle Strength / physiology*
  • Oklahoma
  • Seasons
  • Universities
  • Wrestling / physiology*
  • Young Adult