Leg Strength Is Related to Endurance Run Performance in Children and Adolescents with Mental Retardation

in Pediatric Exercise Science
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This study evaluated the relationship between leg strength and endurance run performance, independent of aerobic capacity (V̇O2peak), body size, and gender, in children and adolescents with mild or moderate mental retardation. Twenty-six individuals (15 boys and 11 girls) volunteered and underwent tests of V̇O2peak, isokinetic leg strength, and endurance run performance (600-yard ran/walk and 20-m shuttle run). Results showed that leg strength was significantly related to both types of run performance; however, when controlling for V̇O2peak, body size, and gender, leg strength was a more significant contributor to the 600-yard run/walk than to 20-m shuttle run performance. Gender did not influence these relationships. These data suggest that leg strength has a significant influence on endurance run performance in children and adolescents with mild or moderate mental retardation.

B. Fernhall is with the Exercise Science Programs at George Washington University Medical Center, Washington DC, 20052. K.H. Pitetti is with Public Health Sciences in the College of Health Professions at Wichita State University, Wichita, KS 67260-3060.

Pediatric Exercise Science
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