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Cited by 9

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

The efficacy of a discontinuous graded exercise test in measuring peak oxygen uptake in children aged 8 to 10 years

Lambrick, D, Jakeman, J, Grigg, R, Kaufmann, S, Faulkner, J·2017·Biology of Sport
DOI 10.5114/biolsport.2017.63734PMC PMC5377562
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Abstract

As children's natural activity patterns are highly intermittent in nature, and characterised by rapid changes from rest to vigorous physical activity, discontinuous exercise tests may be considered ecologically valid for this population group.This study compared the peak physiological responses from a discontinuous and continuous graded exercise test (GXT_D, GXT_C, respectively) during treadmill exercise in children.Twentyone healthy children (9.6 ± 0.6 y) completed GXT_D and GXT_C in a randomised order, separated by 72-hours.Following each GXT, and after a 15-minute recovery, participants completed a verification test at 105% of the velocity attained at peak oxygen consumption (VO 2 peak).There were no differences in VO 2 peak (55.3 ± 8.2 cf.54.4 ± 7.6 mL•kg -1 •min -1 ) or maximal heart rate (202 ± 10 cf.204 ± 8 b•min -1 ) between GXT_C and GXT_D, respectively (P>.05).Peak running speed (10.7 ± 0.9 cf.12.1 ± 1.3 km•h -1 ) and respiratory exchange ratio (1.04 ± 0.05 cf.0.92 ± 0.05) were however different between tests (P<.001).Although similar peak physiological values were revealed between GXT_C and the corresponding verification test (P>.05),VO 2 peak (53.3 ± 7.3 mL•kg -1 •min -1 ) and heart rate (197 ± 13 b•min -1 ) were significantly lower in the GXT_D verification test (P<.05).In conclusion, a discontinuous GXT is an accurate measure of VO 2 peak in children aged 8 to 10 years and may be a valid alternative to a continuous GXT, despite its longer duration.

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Crossref · 10.5114/biolsport.2017.63734

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Figures

FIG. 1 Narrowest 95 % limits of agreement (bias ± [1.96 x SDdiff], mL·kg-1·min-1) between the GXT_D and GXT_C VO2peak values.
FIG. 1 Narrowest 95 % limits of agreement (bias ± [1.96 x SDdiff], mL·kg-1·min-1) between the GXT_D and GXT_C VO2peak values.CC BY-NC-ND · PubMed Central
FIG. 2 Representative subject data for VO2 from GXT_C (dark circles) and GXT_D (open circles). The figure includes a 3-minute baseline VO2 measure.
FIG. 2 Representative subject data for VO2 from GXT_C (dark circles) and GXT_D (open circles). The figure includes a 3-minute baseline VO2 measure.CC BY-NC-ND · PubMed Central

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Citations

Cites

Research works printed but not linked: 3

  1. [11]Eston RG Parfitt G Armstrong N Perceived exertion Paediatric Exercise Physiology. 2007 London Elsevier 275 298
  2. [19]Day JR Rossiter HB Coats EM Skasick A Whipp BJ The maximally attainable VO2 during exercise in humans: the peak versus maximum issue J Appl Physiol. 2003 95 1901 1907 12857763
  3. [25]Midgley AW McNaughton LR Polman R Marchant D Criteria for determination of maximal oxygen uptake Sports Med. 2007 37 1019 1028 18027991

Cited by

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Metadata

Authors
Lambrick, D., Jakeman, J., Grigg, R., Kaufmann, S., & Faulkner, J.
Venue
Biology of Sport
Publisher
Termedia Sp. z.o.o.
Published
2017
Volume
1
Pages
57-61
ISSN
0860-021X
DOI
10.5114/biolsport.2017.63734
PMC
PMC5377562
Cited by
9
References
34

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