Transient VO2 characteristics in children at the onset of steady-rate exercise

Patty S. Freedson; Thomas B. Gilliam; Stanley P. Sady; Victor L. Katch

doi:10.1080/02701367.1981.10607854

Transient VO₂ characteristics in children at the onset of steady-rate exercise

Patty S. Freedson, Thomas B. Gilliam, Stanley P. Sady, Victor L. Katch

Research output: Contribution to journal › Article

9 Scopus citations

Abstract

The transient oxygen uptake (VO₂) response during the initial phase of exercise was investigated in 28 children (mean age ± SD = 10.2 ± 2.28 years) during constant load submaximum bicycle ergometer exercise (mean power output ± SD = 56 ± 4.0 watts; mean VO₂ ± SD =.92 ±.141 ṁ min^-1). The VO₂ half-time (VO₂ - t½) averaged (± SD) 34.8 (± 12.70) sec which is similar to that observed in adults. Examination of the VO₂-t ½ response as it related to age (7 to 14 years) showed that younger children attained steady-rate VO₂ more quickly than older children (r =.77 between age and VO₂-t½, P <.05). Body size, maturational level, exercise intensity, cardiorespiratory factors, and anaerobic potential are suggested as possible factors accounting for the positive age vs VO₂-t ½ relationship.

Original language	English (US)
Pages (from-to)	167-173
Number of pages	7
Journal	Research Quarterly for Exercise and Sport
Volume	52
Issue number	2
DOIs	https://doi.org/10.1080/02701367.1981.10607854
State	Published - 1981
Externally published	Yes

Keywords

Anaerobic potential
Body size
Children
Maturation
Steady-rate exercise
VO kinetics

ASJC Scopus subject areas

Orthopedics and Sports Medicine
Physical Therapy, Sports Therapy and Rehabilitation
Nephrology
Psychology(all)
Applied Psychology

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10.1080/02701367.1981.10607854

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Freedson, P. S., Gilliam, T. B., Sady, S. P., & Katch, V. L. (1981). Transient VO₂ characteristics in children at the onset of steady-rate exercise. Research Quarterly for Exercise and Sport, 52(2), 167-173. https://doi.org/10.1080/02701367.1981.10607854

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abstract = "The transient oxygen uptake (VO2) response during the initial phase of exercise was investigated in 28 children (mean age ± SD = 10.2 ± 2.28 years) during constant load submaximum bicycle ergometer exercise (mean power output ± SD = 56 ± 4.0 watts; mean VO2 ± SD =.92 ±.141 ṁ min-1). The VO2 half-time (VO2 - t½) averaged (± SD) 34.8 (± 12.70) sec which is similar to that observed in adults. Examination of the VO2-t ½ response as it related to age (7 to 14 years) showed that younger children attained steady-rate VO2 more quickly than older children (r =.77 between age and VO2-t½, P <.05). Body size, maturational level, exercise intensity, cardiorespiratory factors, and anaerobic potential are suggested as possible factors accounting for the positive age vs VO2-t ½ relationship.",

keywords = "Anaerobic potential, Body size, Children, Maturation, Steady-rate exercise, VO kinetics",

author = "Freedson, {Patty S.} and Gilliam, {Thomas B.} and Sady, {Stanley P.} and Katch, {Victor L.}",

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AU - Freedson, Patty S.

AU - Gilliam, Thomas B.

AU - Sady, Stanley P.

AU - Katch, Victor L.

PY - 1981

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N2 - The transient oxygen uptake (VO2) response during the initial phase of exercise was investigated in 28 children (mean age ± SD = 10.2 ± 2.28 years) during constant load submaximum bicycle ergometer exercise (mean power output ± SD = 56 ± 4.0 watts; mean VO2 ± SD =.92 ±.141 ṁ min-1). The VO2 half-time (VO2 - t½) averaged (± SD) 34.8 (± 12.70) sec which is similar to that observed in adults. Examination of the VO2-t ½ response as it related to age (7 to 14 years) showed that younger children attained steady-rate VO2 more quickly than older children (r =.77 between age and VO2-t½, P <.05). Body size, maturational level, exercise intensity, cardiorespiratory factors, and anaerobic potential are suggested as possible factors accounting for the positive age vs VO2-t ½ relationship.

AB - The transient oxygen uptake (VO2) response during the initial phase of exercise was investigated in 28 children (mean age ± SD = 10.2 ± 2.28 years) during constant load submaximum bicycle ergometer exercise (mean power output ± SD = 56 ± 4.0 watts; mean VO2 ± SD =.92 ±.141 ṁ min-1). The VO2 half-time (VO2 - t½) averaged (± SD) 34.8 (± 12.70) sec which is similar to that observed in adults. Examination of the VO2-t ½ response as it related to age (7 to 14 years) showed that younger children attained steady-rate VO2 more quickly than older children (r =.77 between age and VO2-t½, P <.05). Body size, maturational level, exercise intensity, cardiorespiratory factors, and anaerobic potential are suggested as possible factors accounting for the positive age vs VO2-t ½ relationship.

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