Differences and changes in V̇O2 among young runners 10 to 18 years of age

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Abstract

DANIELS, J., N. OLDRIDGE, F. NAGLE and B. WHITE. Differences and changes in V̇o2 among young runners 10 to 18 years of age. Med. Sci. Sports. Vol 10, No. 3, pp. 200-203, 1978—Twenty young males, all active in middle-distance running, were studied between January 1968 and May 1974 for the purpose of gathering longitudinal data regarding V̇o2 during treadmill running. V̇o2 submax (measured during the last 2 min of a 6-min run at 202 m/min) and V̇o2 max values (measured during a 5-8 min increasing-speed run to exhaustion) were collected approximately every 6 months for 6 years. Different groups, starting at ages of 10, 12 and 13 years were followed for periods of 2 to 5 years continuously. In all longitudinal comparisons, V̇o2 max (ml/min) changes paralleled changes in body weight; consequently, V̇o2 max (ml/kg•min-1) did not show a significant change. In every group V̇o2 submax (ml/kg•min-1) dropped significantly over time. All data were pooled by 1 yr age groups, providing cross-sectional data for active boys 10-18 yrs of age. V̇o2 max ranged from 1933 ml/min for 10-yr olds to 4082 for 18-year olds. Concurrent changes in weight resulted in no significant differences in V̇o2 max (ml/kg•min-1) from the overall mean of 61.5. V̇o2 submax (ml/kg•min-1) was highest among 10-year olds (53.3) and lowest among 18-yr olds (42.5). Based on these longitudinal and cross sectional findings and significant improvements in times for 1- and 2-mile races, it was concluded that V̇o2 max (ml/min) increases no faster than does body weight among moderately active growing boys and that both age and training contribute to a change in V̇o2 submax; a factor which accounts greatly for improvements in middle-distance race performance.

V̇o2 max, V̇o2 submax, aerobic demands of running, growth and V̇o2, growth and performance, age and V̇o2

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