Relationship Between Measures of Body Size and Composition and Velocity of Lactate Threshold

• Published in: Journal of strength and conditioning research 2004-08, Vol.18 (3), p.504-507
• Main Authors: Buresh, Robert J, Berg, Kris E, Noble, John M
• Format: Article
• Language: English
• Subjects: Adult; Anaerobic Threshold - physiology; Body Composition - physiology; Body Size - physiology; Exercise - physiology; Humans; Lactic Acid - blood; Male; Running - physiology; Task Performance and Analysis
• ISSN: 1064-8011; 1533-4287
• DOI: 10.1519/00124278-200408000-00019

Buresh, R.J., K.E. Berg, and J.M. Noble. Relationship between measures of body size and composition and velocity of lactate threshold. J. Strength Cond. Res. 18(3):504–507. 2004.—The purpose of this investigation was to explore the relationship between velocity of lactate threshold (vLT) and various measures of body mass and compositionmass, lean mass, fat mass, percent body fat (% fat), and body surface area (BSA). We hypothesized that mass would be inversely related to vLT, and that differences in measures of body mass and composition would account for a significant amount of variability in vLT. A total of 21 healthy male runners served as subjects. Body composition was assessed by hydrostatic weighing. A significant negative relationship (r = -0.759, p ≤ 0.01) was between body mass and vLT. The coefficient of determination between vLT and body mass indicated that nearly 58% of the variability in vLT was explained by body mass in these subjects. Significant relationships were also between vLT and BSA (r = -0.72, p ≤ 0.01), fat mass (r = -0.70, p ≤ 0.01), % fat (r = -0.59, p ≤ 0.01), and lean mass (r = -0.41, p ≤ 0.05). Linear regression yielded the following modely = 369.48 - 1.7343 (X), where y = predicted vLT (m·min) and X = body mass (kilograms) (SEE = 15.45). Velocity of lactate threshold was significantly inversely related with body mass in a group of male runners. The calculated coefficient of determination suggests that nearly 58% of the variability in vLT was explained by body mass. The present data suggest consideration of categorizing participants in ‘road runs’ by body mass to equate competition, as is done in other sports (e.g., weightlifting).