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

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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

Cite this

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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title = "Transient VO2 characteristics in children at the onset of steady-rate exercise",

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

Y1 - 1981

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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KW - Children

KW - Maturation

KW - Steady-rate exercise

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10.1080/02701367.1981.10607854