Assessment of the 5-minute oxygen uptake efficiency slope in children with obesity

Katrin A. Dias; Concetta E. Masterson; Matthew P. Wallen; Arnt E. Tjonna; Mansoureh S. Hosseini; Peter S.W. Davies; Peter A. Cain; Gary M. Leong; Ross Arena; Charlotte B. Ingul; Jeff S. Coombes

doi:10.1123/pes.2016-0248

Assessment of the 5-minute oxygen uptake efficiency slope in children with obesity

Katrin A. Dias, Concetta E. Masterson, Matthew P. Wallen, Arnt E. Tjonna, Mansoureh S. Hosseini, Peter S.W. Davies, Peter A. Cain, Gary M. Leong, Ross Arena, Charlotte B. Ingul, Jeff S. Coombes

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Purpose: Poor cardiorespiratory fitness is associated with increased all cause morbidity and mortality. In children with obesity, maximum oxygen uptake (VO_2max) may not be achieved due to reduced motivation and peripheral fatigue. We aimed to identify a valid submaximal surrogate for VO_2max in children with obesity. Method: Ninety-two children with obesity (7-16 years) completed a maximal exercise treadmill test and entered a three-month exercise and/or nutrition intervention after which the exercise test was repeated (n = 63). Participants were required to reach VO_2max to be included in this analysis (n = 32 at baseline and n = 13 at both time-points). The oxygen uptake efficiency slope (OUES) was determined as the slope of the line when VO₂ (L/min) was plotted against logV? E. Associations between the maximal OUES, submaximal OUES (at 3, 4, 5 and 6 min of the exercise test) and VO_2max were calculated. Results: In the cross-sectional analysis, V?O2max (L/min) was strongly correlated with 5-min OUES independent of Tanner puberty stage and sex (R² = .80, p < .001). Longitudinal changes in VO_2max were closely reflected by changes in 5-min OUES independent of change in percent body fat (R² = .63, p < .05). Conclusion: The 5-min OUES is a viable alternative to VO_2max when assessing children with obesity.

Original language	English
Pages (from-to)	350-360
Number of pages	11
Journal	Pediatric Exercise Science
Volume	29
Issue number	3
DOIs	https://doi.org/10.1123/pes.2016-0248
Publication status	Published - Jan 2017
Externally published	Yes

Keywords

Childhood obesity
Exercise intervention
Oxygen consumption

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10.1123/pes.2016-0248Licence: In Copyright

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@article{4f852c9da84f4a0193d028ba11cdce43,

title = "Assessment of the 5-minute oxygen uptake efficiency slope in children with obesity",

abstract = "Purpose: Poor cardiorespiratory fitness is associated with increased all cause morbidity and mortality. In children with obesity, maximum oxygen uptake (VO2max) may not be achieved due to reduced motivation and peripheral fatigue. We aimed to identify a valid submaximal surrogate for VO2max in children with obesity. Method: Ninety-two children with obesity (7-16 years) completed a maximal exercise treadmill test and entered a three-month exercise and/or nutrition intervention after which the exercise test was repeated (n = 63). Participants were required to reach VO2max to be included in this analysis (n = 32 at baseline and n = 13 at both time-points). The oxygen uptake efficiency slope (OUES) was determined as the slope of the line when VO2 (L/min) was plotted against logV? E. Associations between the maximal OUES, submaximal OUES (at 3, 4, 5 and 6 min of the exercise test) and VO2max were calculated. Results: In the cross-sectional analysis, V?O2max (L/min) was strongly correlated with 5-min OUES independent of Tanner puberty stage and sex (R2 = .80, p < .001). Longitudinal changes in VO2max were closely reflected by changes in 5-min OUES independent of change in percent body fat (R2 = .63, p < .05). Conclusion: The 5-min OUES is a viable alternative to VO2max when assessing children with obesity.",

keywords = "Childhood obesity, Exercise intervention, Oxygen consumption",

author = "Dias, {Katrin A.} and Masterson, {Concetta E.} and Wallen, {Matthew P.} and Tjonna, {Arnt E.} and Hosseini, {Mansoureh S.} and Davies, {Peter S.W.} and Cain, {Peter A.} and Leong, {Gary M.} and Ross Arena and Ingul, {Charlotte B.} and Coombes, {Jeff S.}",

year = "2017",

month = jan,

doi = "10.1123/pes.2016-0248",

language = "English",

volume = "29",

pages = "350--360",

journal = "Pediatric Exercise Science",

issn = "0899-8493",

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Assessment of the 5-minute oxygen uptake efficiency slope in children with obesity. / Dias, Katrin A.; Masterson, Concetta E.; Wallen, Matthew P.; Tjonna, Arnt E.; Hosseini, Mansoureh S.; Davies, Peter S.W.; Cain, Peter A.; Leong, Gary M.; Arena, Ross; Ingul, Charlotte B.; Coombes, Jeff S.

In: Pediatric Exercise Science, Vol. 29, No. 3, 01.2017, p. 350-360.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Assessment of the 5-minute oxygen uptake efficiency slope in children with obesity

AU - Dias, Katrin A.

AU - Masterson, Concetta E.

AU - Wallen, Matthew P.

AU - Tjonna, Arnt E.

AU - Hosseini, Mansoureh S.

AU - Davies, Peter S.W.

AU - Cain, Peter A.

AU - Leong, Gary M.

AU - Arena, Ross

AU - Ingul, Charlotte B.

AU - Coombes, Jeff S.

PY - 2017/1

Y1 - 2017/1

N2 - Purpose: Poor cardiorespiratory fitness is associated with increased all cause morbidity and mortality. In children with obesity, maximum oxygen uptake (VO2max) may not be achieved due to reduced motivation and peripheral fatigue. We aimed to identify a valid submaximal surrogate for VO2max in children with obesity. Method: Ninety-two children with obesity (7-16 years) completed a maximal exercise treadmill test and entered a three-month exercise and/or nutrition intervention after which the exercise test was repeated (n = 63). Participants were required to reach VO2max to be included in this analysis (n = 32 at baseline and n = 13 at both time-points). The oxygen uptake efficiency slope (OUES) was determined as the slope of the line when VO2 (L/min) was plotted against logV? E. Associations between the maximal OUES, submaximal OUES (at 3, 4, 5 and 6 min of the exercise test) and VO2max were calculated. Results: In the cross-sectional analysis, V?O2max (L/min) was strongly correlated with 5-min OUES independent of Tanner puberty stage and sex (R2 = .80, p < .001). Longitudinal changes in VO2max were closely reflected by changes in 5-min OUES independent of change in percent body fat (R2 = .63, p < .05). Conclusion: The 5-min OUES is a viable alternative to VO2max when assessing children with obesity.

AB - Purpose: Poor cardiorespiratory fitness is associated with increased all cause morbidity and mortality. In children with obesity, maximum oxygen uptake (VO2max) may not be achieved due to reduced motivation and peripheral fatigue. We aimed to identify a valid submaximal surrogate for VO2max in children with obesity. Method: Ninety-two children with obesity (7-16 years) completed a maximal exercise treadmill test and entered a three-month exercise and/or nutrition intervention after which the exercise test was repeated (n = 63). Participants were required to reach VO2max to be included in this analysis (n = 32 at baseline and n = 13 at both time-points). The oxygen uptake efficiency slope (OUES) was determined as the slope of the line when VO2 (L/min) was plotted against logV? E. Associations between the maximal OUES, submaximal OUES (at 3, 4, 5 and 6 min of the exercise test) and VO2max were calculated. Results: In the cross-sectional analysis, V?O2max (L/min) was strongly correlated with 5-min OUES independent of Tanner puberty stage and sex (R2 = .80, p < .001). Longitudinal changes in VO2max were closely reflected by changes in 5-min OUES independent of change in percent body fat (R2 = .63, p < .05). Conclusion: The 5-min OUES is a viable alternative to VO2max when assessing children with obesity.

KW - Childhood obesity

KW - Exercise intervention

KW - Oxygen consumption

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DO - 10.1123/pes.2016-0248

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EP - 360

JO - Pediatric Exercise Science

JF - Pediatric Exercise Science

SN - 0899-8493

IS - 3

ER -

Assessment of the 5-minute oxygen uptake efficiency slope in children with obesity

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