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Int J Sports Med 1991; 12(6): 557-562
DOI: 10.1055/s-2007-1024733
© Georg Thieme Verlag Stuttgart · New York

Test Development for the Study of Physical Performance in Wrestlers Following Weight Loss

R. C. Hickner1 , C. A. Horswill2 , J. M. Welker3 , J. Scott4 , J. N. Roemmich5 , D. L. Costill6
  • Ball State University, Muncie, IN and Grand Valley State University, Allendale, MI
  • 1Karolinska Institute, Department of Physiology III, Stockholm
  • 2Childrens Hospital, Columbus, OH
  • 3University of Massachusetts, Center for Health and Fitness, Worcester, MA
  • 4Grand Valley State University, Department of Physical Education, Allendale, MI
  • 5Kent State University, School of Physical Education, Recreation and Dance, Kent, OH
  • 6Ball State University, Human Performance Lab, Muncie, IN
This study was supported in part by Ross Laboratories and a grant from the US Olympic Committee.
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14. März 2008 (online)

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Abstract

This study was conducted to develop a testing protocol which would determine the extent of upper-body power output decrements in subjects following weight loss. Five athletes who had trained via upper-body exercise performed a 6-minute variable intensity arm crank test on an isokinetic ergometer before and after a 3-day, 4.5% body weight loss. Blood samples were drawn from a forearm vein pre- and 1,3, and 5 min post-arm cranking for assessment of lactate, pH, hemoglobin, and hematocrit. The work performed pre-weight loss was significantly (paired t-test, p < 0.05) greater than that performed post-weight loss. Repeated measures ANOVA yielded no significant differences in blood variables; however, pre-weight loss lactate values were higher and hemoglobin, hematocrit, and pH values were lower than post-weight loss values. It was concluded that a 4.5% body weight reduction resulted in performance decrements during this arm crank test. Survey information obtained from collegiate wrestlers (n= 14) subsequently tested under this protocol indicates the physical demands of this test approximate the physical demands of actual wrestling competition. It would therefore be appropriate to use this protocol during future testing of wrestlers in weight loss studies.

Key words

Arm crank - upper body exercise - wrestlers - weight loss - test development