The oxygen uptake efficiency slope does not accurately predict V˙O2peak of children – the Arkansas Active Kids study
Cardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption ( V ˙ O2peak) to determine CRF in children can be challenging. The oxygen uptake efficiency slope (OUES) has been proposed as an alternative metric for predicting V ˙ O2peak in child...
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| Veröffentlicht in: | Frontiers in physiology Jg. 15; S. 1358942 |
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| Abstract | Cardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption ( V ˙ O2peak) to determine CRF in children can be challenging. The oxygen uptake efficiency slope (OUES) has been proposed as an alternative metric for predicting V ˙ O2peak in children, but its accuracy and agreement with measured V ˙ O2peak remain unclear.BackgroundCardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption ( V ˙ O2peak) to determine CRF in children can be challenging. The oxygen uptake efficiency slope (OUES) has been proposed as an alternative metric for predicting V ˙ O2peak in children, but its accuracy and agreement with measured V ˙ O2peak remain unclear.A post hoc analysis was conducted in 94 children (ages 7-10 years) who completed an incremental cycle ergometer test to measure V ˙ O2peak. Body composition (Dual-energy X-ray absorptiometry) was measured, and fat mass index (FMI, kg/m2) and fat-free mass index (FFMI, kg/m2) were calculated. OUES was determined using all respiratory data (OUES100%) collected during the cycle ergometer test and using data only up to 60% of heart rate reserve (OUES60%HRR). Regression equations to predict V ˙ O2peak (Pred- V ˙ O2peak) were derived from simple and multiple linear regression analysis. Bland-Altman analysis assessed the level of agreement between Pred- V ˙ O2peak and measured V ˙ O2peak.MethodsA post hoc analysis was conducted in 94 children (ages 7-10 years) who completed an incremental cycle ergometer test to measure V ˙ O2peak. Body composition (Dual-energy X-ray absorptiometry) was measured, and fat mass index (FMI, kg/m2) and fat-free mass index (FFMI, kg/m2) were calculated. OUES was determined using all respiratory data (OUES100%) collected during the cycle ergometer test and using data only up to 60% of heart rate reserve (OUES60%HRR). Regression equations to predict V ˙ O2peak (Pred- V ˙ O2peak) were derived from simple and multiple linear regression analysis. Bland-Altman analysis assessed the level of agreement between Pred- V ˙ O2peak and measured V ˙ O2peak.OUES60%HRR (β = 0.46, p < 0.0001), age (β = 56.0, p = 0.0004), White race (β = 173.3, p < 0.0003), FFMI (β = 0.98.6, p < 0.000), and FMI (β = -0.40.8, p < 0.000) were retained in the final model. The difference between measured V ˙ O2peak and Pred- V ˙ O2peak was not different from zero (p = 0.999). There was a positive association between the difference of measured V ˙ O2peak and Pred- V ˙ O2peak and the average of the two methods (β = 0.79, p = 0.0028).ResultsOUES60%HRR (β = 0.46, p < 0.0001), age (β = 56.0, p = 0.0004), White race (β = 173.3, p < 0.0003), FFMI (β = 0.98.6, p < 0.000), and FMI (β = -0.40.8, p < 0.000) were retained in the final model. The difference between measured V ˙ O2peak and Pred- V ˙ O2peak was not different from zero (p = 0.999). There was a positive association between the difference of measured V ˙ O2peak and Pred- V ˙ O2peak and the average of the two methods (β = 0.79, p = 0.0028).There was no mean bias between measured V ˙ O2peak and Pred- V ˙ O2peak. However, magnitude bias was present even after considering other significant predictors of V ˙ O2peak (FMI, FFMI, race, and age) in the regression equation. Caution is advised when using OUES to predict V ˙ O2peak in children.ConclusionThere was no mean bias between measured V ˙ O2peak and Pred- V ˙ O2peak. However, magnitude bias was present even after considering other significant predictors of V ˙ O2peak (FMI, FFMI, race, and age) in the regression equation. Caution is advised when using OUES to predict V ˙ O2peak in children. |
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| AbstractList | BackgroundCardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption (V˙O2peak) to determine CRF in children can be challenging. The oxygen uptake efficiency slope (OUES) has been proposed as an alternative metric for predicting V˙O2peak in children, but its accuracy and agreement with measured V˙O2peak remain unclear.MethodsA post hoc analysis was conducted in 94 children (ages 7–10 years) who completed an incremental cycle ergometer test to measure V˙O2peak. Body composition (Dual-energy X-ray absorptiometry) was measured, and fat mass index (FMI, kg/m2) and fat-free mass index (FFMI, kg/m2) were calculated. OUES was determined using all respiratory data (OUES100%) collected during the cycle ergometer test and using data only up to 60% of heart rate reserve (OUES60%HRR). Regression equations to predict V˙O2peak (Pred-V˙O2peak) were derived from simple and multiple linear regression analysis. Bland-Altman analysis assessed the level of agreement between Pred-V˙O2peak and measured V˙O2peak.ResultsOUES60%HRR (β = 0.46, p < 0.0001), age (β = 56.0, p = 0.0004), White race (β = 173.3, p < 0.0003), FFMI (β = 0.98.6, p < 0.000), and FMI (β = −0.40.8, p < 0.000) were retained in the final model. The difference between measured V˙O2peak and Pred-V˙O2peak was not different from zero (p = 0.999). There was a positive association between the difference of measured V˙O2peak and Pred-V˙O2peak and the average of the two methods (β = 0.79, p = 0.0028).ConclusionThere was no mean bias between measured V˙O2peak and Pred-V˙O2peak. However, magnitude bias was present even after considering other significant predictors of V˙O2peak (FMI, FFMI, race, and age) in the regression equation. Caution is advised when using OUES to predict V˙O2peak in children. Cardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption ( V ˙ O2peak) to determine CRF in children can be challenging. The oxygen uptake efficiency slope (OUES) has been proposed as an alternative metric for predicting V ˙ O2peak in children, but its accuracy and agreement with measured V ˙ O2peak remain unclear.BackgroundCardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption ( V ˙ O2peak) to determine CRF in children can be challenging. The oxygen uptake efficiency slope (OUES) has been proposed as an alternative metric for predicting V ˙ O2peak in children, but its accuracy and agreement with measured V ˙ O2peak remain unclear.A post hoc analysis was conducted in 94 children (ages 7-10 years) who completed an incremental cycle ergometer test to measure V ˙ O2peak. Body composition (Dual-energy X-ray absorptiometry) was measured, and fat mass index (FMI, kg/m2) and fat-free mass index (FFMI, kg/m2) were calculated. OUES was determined using all respiratory data (OUES100%) collected during the cycle ergometer test and using data only up to 60% of heart rate reserve (OUES60%HRR). Regression equations to predict V ˙ O2peak (Pred- V ˙ O2peak) were derived from simple and multiple linear regression analysis. Bland-Altman analysis assessed the level of agreement between Pred- V ˙ O2peak and measured V ˙ O2peak.MethodsA post hoc analysis was conducted in 94 children (ages 7-10 years) who completed an incremental cycle ergometer test to measure V ˙ O2peak. Body composition (Dual-energy X-ray absorptiometry) was measured, and fat mass index (FMI, kg/m2) and fat-free mass index (FFMI, kg/m2) were calculated. OUES was determined using all respiratory data (OUES100%) collected during the cycle ergometer test and using data only up to 60% of heart rate reserve (OUES60%HRR). Regression equations to predict V ˙ O2peak (Pred- V ˙ O2peak) were derived from simple and multiple linear regression analysis. Bland-Altman analysis assessed the level of agreement between Pred- V ˙ O2peak and measured V ˙ O2peak.OUES60%HRR (β = 0.46, p < 0.0001), age (β = 56.0, p = 0.0004), White race (β = 173.3, p < 0.0003), FFMI (β = 0.98.6, p < 0.000), and FMI (β = -0.40.8, p < 0.000) were retained in the final model. The difference between measured V ˙ O2peak and Pred- V ˙ O2peak was not different from zero (p = 0.999). There was a positive association between the difference of measured V ˙ O2peak and Pred- V ˙ O2peak and the average of the two methods (β = 0.79, p = 0.0028).ResultsOUES60%HRR (β = 0.46, p < 0.0001), age (β = 56.0, p = 0.0004), White race (β = 173.3, p < 0.0003), FFMI (β = 0.98.6, p < 0.000), and FMI (β = -0.40.8, p < 0.000) were retained in the final model. The difference between measured V ˙ O2peak and Pred- V ˙ O2peak was not different from zero (p = 0.999). There was a positive association between the difference of measured V ˙ O2peak and Pred- V ˙ O2peak and the average of the two methods (β = 0.79, p = 0.0028).There was no mean bias between measured V ˙ O2peak and Pred- V ˙ O2peak. However, magnitude bias was present even after considering other significant predictors of V ˙ O2peak (FMI, FFMI, race, and age) in the regression equation. Caution is advised when using OUES to predict V ˙ O2peak in children.ConclusionThere was no mean bias between measured V ˙ O2peak and Pred- V ˙ O2peak. However, magnitude bias was present even after considering other significant predictors of V ˙ O2peak (FMI, FFMI, race, and age) in the regression equation. Caution is advised when using OUES to predict V ˙ O2peak in children. |
| Author | Edwards, Timothy Børsheim, Elisabet Weber, Judith L. Diaz, Eva C. |
| AuthorAffiliation | 2 Arkansas Children’s Research Institute , Little Rock , AR , United States 3 Department of Pediatrics , University of Arkansas for Medical Sciences , Little Rock , AR , United States 1 Arkansas Children’s Nutrition Center , Little Rock , AR , United States 4 Department of Geriatrics , University of Arkansas for Medical Sciences , Little Rock , AR , United States |
| AuthorAffiliation_xml | – name: 4 Department of Geriatrics , University of Arkansas for Medical Sciences , Little Rock , AR , United States – name: 2 Arkansas Children’s Research Institute , Little Rock , AR , United States – name: 1 Arkansas Children’s Nutrition Center , Little Rock , AR , United States – name: 3 Department of Pediatrics , University of Arkansas for Medical Sciences , Little Rock , AR , United States |
| Author_xml | – sequence: 1 givenname: Timothy surname: Edwards fullname: Edwards, Timothy – sequence: 2 givenname: Elisabet surname: Børsheim fullname: Børsheim, Elisabet – sequence: 3 givenname: Judith L. surname: Weber fullname: Weber, Judith L. – sequence: 4 givenname: Eva C. surname: Diaz fullname: Diaz, Eva C. |
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| Cites_doi | 10.6515/ACS.202405_40(3).20240105A 10.1164/arrd.1984.129.2P2.S47 10.1016/s0735-1097(00)01054-8 10.1016/S0140-6736(86)90837-8 10.1123/pes.19.2.159 10.1016/j.jacc.2018.08.2166 10.1139/h02-034 10.1016/j.jesf.2020.11.001 10.1152/jappl.1955.8.1.73 10.1123/pes.22.3.431 10.1177/0260106020975571 10.1123/pes.24.3.357 10.1097/00005768-200201000-00021 10.1123/pes.2016-0248 10.1249/mss.0b013e31812e52b3 10.1016/s0735-1097(96)00412-3 10.1161/JAHA.116.005037 10.1016/j.transproceed.2015.10.076 10.1161/CIR.0000000000000866 |
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| Snippet | Cardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption ( V ˙ O2peak) to determine CRF in... BackgroundCardiorespiratory fitness (CRF) is a vital indicator of health. However, accurately measuring peak oxygen consumption (V˙O2peak) to determine CRF in... |
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| Title | The oxygen uptake efficiency slope does not accurately predict V˙O2peak of children – the Arkansas Active Kids study |
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