An Equation for the Prediction of Oxygen Consumption in Chinese Adults

Li Chen; Runwen Qi; Wen Zhou; Xi Chen; Shaohong Zhang; Jiaming Ye; Zijun Ge; Sijing Ye; Chao Liu

doi:doi:10.11648/j.ajls.20210906.13

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An Equation for the Prediction of Oxygen Consumption in Chinese Adults

Li Chen, Runwen Qi, Wen Zhou, Xi Chen, Shaohong Zhang, Jiaming Ye, Zijun Ge, Sijing Ye, Chao Liu

Published in American Journal of Life Sciences (Volume 9, Issue 6)

Received: 28 October 2021 Accepted: 23 November 2021 Published: 24 November 2021

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Abstract

To develop and validate a reference equation (RE) for prediction of VO_2peak in Chinese adults and compare the equation cited by Wasserman, Edvardsen, Nevil and Itoh. we reviewed the data of 554 adults with treadmill Bruce protocol of CPET (breath by breath) from R+ clinic in Chengdu. Ultimately, 313 adults (aged from 20-59 years) including smokers, obese, were judged to have normal cardiorespiratory system without vascular disease (CVD), hypertension, diabetes and other chronic pulmonary disease based on case history, physical, electrocardiogram during rest and exercise, and exercise performance. The 313 sample was divided into 80% construction group (CG) and 20% validation group (VG) using a case random method. Oxygen consumption, Maximal heart rate (HRmax) and respiratory exchange ratio (RER) were collected in the state of exhaustion. The influence of potential confounding factors, such as age, sex, weight, height and BMI were analyzed for their influencing power at the RE. The equation was predicted by regression analyses. RE was also tested in the VG. Simultaneously, we compared measure VO_2peak with predicted values calculated with four equations from Wasserman, Edvardsen, Nevil and Itoh. The line chart that predicted VO_2max changes in BMI, height classification and measured among equations was plotted. The mean age and VO_2max were 36.63±9.49 years and 32.82 ± 6.01 ml.kg^-1.min^-1, respectively. For model construction, two prediction equations with acceptable accuracy were developed (R² = 0.67 - 0.71; SEE = 0.02028 - 0.02033). In VG, the difference was not significant between measured and predicted VO_2peak from model 2 and model 1 (P > 0.05). However, difference came up between the average VO_2peak predicted by cited equation and the CPET measured VO_2peak, as well as the difference gotten from the RE (P < 0.001). RE presents VO_2max values close to those directly measured by CPET, while Europe and America equations overestimated the VO_2max. The predicted values of VO_2max calculated from Itoh equation revealed a very good consistence among normal and low weight.

Published in	American Journal of Life Sciences (Volume 9, Issue 6)
DOI	10.11648/j.ajls.20210906.13
Page(s)	173-179
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

VO_2peak, Equation, Chinese Adults

References

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APA Style

Li Chen, Runwen Qi, Wen Zhou, Xi Chen, Shaohong Zhang, et al. (2021). An Equation for the Prediction of Oxygen Consumption in Chinese Adults. American Journal of Life Sciences, 9(6), 173-179. https://doi.org/10.11648/j.ajls.20210906.13

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ACS Style

Li Chen; Runwen Qi; Wen Zhou; Xi Chen; Shaohong Zhang, et al. An Equation for the Prediction of Oxygen Consumption in Chinese Adults. Am. J. Life Sci. 2021, 9(6), 173-179. doi: 10.11648/j.ajls.20210906.13

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AMA Style

Li Chen, Runwen Qi, Wen Zhou, Xi Chen, Shaohong Zhang, et al. An Equation for the Prediction of Oxygen Consumption in Chinese Adults. Am J Life Sci. 2021;9(6):173-179. doi: 10.11648/j.ajls.20210906.13

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@article{10.11648/j.ajls.20210906.13,
  author = {Li Chen and Runwen Qi and Wen Zhou and Xi Chen and Shaohong Zhang and Jiaming Ye and Zijun Ge and Sijing Ye and Chao Liu},
  title = {An Equation for the Prediction of Oxygen Consumption in Chinese Adults},
  journal = {American Journal of Life Sciences},
  volume = {9},
  number = {6},
  pages = {173-179},
  doi = {10.11648/j.ajls.20210906.13},
  url = {https://doi.org/10.11648/j.ajls.20210906.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.20210906.13},
  abstract = {To develop and validate a reference equation (RE) for prediction of VO2peak in Chinese adults and compare the equation cited by Wasserman, Edvardsen, Nevil and Itoh. we reviewed the data of 554 adults with treadmill Bruce protocol of CPET (breath by breath) from R+ clinic in Chengdu. Ultimately, 313 adults (aged from 20-59 years) including smokers, obese, were judged to have normal cardiorespiratory system without vascular disease (CVD), hypertension, diabetes and other chronic pulmonary disease based on case history, physical, electrocardiogram during rest and exercise, and exercise performance. The 313 sample was divided into 80% construction group (CG) and 20% validation group (VG) using a case random method. Oxygen consumption, Maximal heart rate (HRmax) and respiratory exchange ratio (RER) were collected in the state of exhaustion. The influence of potential confounding factors, such as age, sex, weight, height and BMI were analyzed for their influencing power at the RE. The equation was predicted by regression analyses. RE was also tested in the VG. Simultaneously, we compared measure VO2peak with predicted values calculated with four equations from Wasserman, Edvardsen, Nevil and Itoh. The line chart that predicted VO2max changes in BMI, height classification and measured among equations was plotted. The mean age and VO2max were 36.63±9.49 years and 32.82 ± 6.01 ml.kg-1.min-1, respectively. For model construction, two prediction equations with acceptable accuracy were developed (R2 = 0.67 - 0.71; SEE = 0.02028 - 0.02033). In VG, the difference was not significant between measured and predicted VO2peak from model 2 and model 1 (P > 0.05). However, difference came up between the average VO2peak predicted by cited equation and the CPET measured VO2peak, as well as the difference gotten from the RE (P 2max values close to those directly measured by CPET, while Europe and America equations overestimated the VO2max. The predicted values of VO2max calculated from Itoh equation revealed a very good consistence among normal and low weight.},
 year = {2021}
}

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TY - JOUR
T1 - An Equation for the Prediction of Oxygen Consumption in Chinese Adults
AU - Li Chen
AU - Runwen Qi
AU - Wen Zhou
AU - Xi Chen
AU - Shaohong Zhang
AU - Jiaming Ye
AU - Zijun Ge
AU - Sijing Ye
AU - Chao Liu
Y1 - 2021/11/24
PY - 2021
N1 - https://doi.org/10.11648/j.ajls.20210906.13
DO - 10.11648/j.ajls.20210906.13
T2 - American Journal of Life Sciences
JF - American Journal of Life Sciences
JO - American Journal of Life Sciences
SP - 173
EP - 179
PB - Science Publishing Group
SN - 2328-5737
UR - https://doi.org/10.11648/j.ajls.20210906.13
AB - To develop and validate a reference equation (RE) for prediction of VO2peak in Chinese adults and compare the equation cited by Wasserman, Edvardsen, Nevil and Itoh. we reviewed the data of 554 adults with treadmill Bruce protocol of CPET (breath by breath) from R+ clinic in Chengdu. Ultimately, 313 adults (aged from 20-59 years) including smokers, obese, were judged to have normal cardiorespiratory system without vascular disease (CVD), hypertension, diabetes and other chronic pulmonary disease based on case history, physical, electrocardiogram during rest and exercise, and exercise performance. The 313 sample was divided into 80% construction group (CG) and 20% validation group (VG) using a case random method. Oxygen consumption, Maximal heart rate (HRmax) and respiratory exchange ratio (RER) were collected in the state of exhaustion. The influence of potential confounding factors, such as age, sex, weight, height and BMI were analyzed for their influencing power at the RE. The equation was predicted by regression analyses. RE was also tested in the VG. Simultaneously, we compared measure VO2peak with predicted values calculated with four equations from Wasserman, Edvardsen, Nevil and Itoh. The line chart that predicted VO2max changes in BMI, height classification and measured among equations was plotted. The mean age and VO2max were 36.63±9.49 years and 32.82 ± 6.01 ml.kg-1.min-1, respectively. For model construction, two prediction equations with acceptable accuracy were developed (R2 = 0.67 - 0.71; SEE = 0.02028 - 0.02033). In VG, the difference was not significant between measured and predicted VO2peak from model 2 and model 1 (P > 0.05). However, difference came up between the average VO2peak predicted by cited equation and the CPET measured VO2peak, as well as the difference gotten from the RE (P 2max values close to those directly measured by CPET, while Europe and America equations overestimated the VO2max. The predicted values of VO2max calculated from Itoh equation revealed a very good consistence among normal and low weight.
VL - 9
IS - 6
ER -

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Author Information

Li Chen

Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
Runwen Qi

R+ Clinic, Chengdu, China
Wen Zhou

R+ Clinic, Chengdu, China
Xi Chen

R+ Clinic, Chengdu, China
Shaohong Zhang

Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
Jiaming Ye

R+ Clinic, Chengdu, China
Zijun Ge

R+ Clinic, Chengdu, China
Sijing Ye

R+ Clinic, Chengdu, China
Chao Liu

Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China

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Plain Text BibTeX RIS

APA Style

Li Chen, Runwen Qi, Wen Zhou, Xi Chen, Shaohong Zhang, et al. (2021). An Equation for the Prediction of Oxygen Consumption in Chinese Adults. American Journal of Life Sciences, 9(6), 173-179. https://doi.org/10.11648/j.ajls.20210906.13

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ACS Style

Li Chen; Runwen Qi; Wen Zhou; Xi Chen; Shaohong Zhang, et al. An Equation for the Prediction of Oxygen Consumption in Chinese Adults. Am. J. Life Sci. 2021, 9(6), 173-179. doi: 10.11648/j.ajls.20210906.13

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AMA Style

Li Chen, Runwen Qi, Wen Zhou, Xi Chen, Shaohong Zhang, et al. An Equation for the Prediction of Oxygen Consumption in Chinese Adults. Am J Life Sci. 2021;9(6):173-179. doi: 10.11648/j.ajls.20210906.13

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@article{10.11648/j.ajls.20210906.13,
  author = {Li Chen and Runwen Qi and Wen Zhou and Xi Chen and Shaohong Zhang and Jiaming Ye and Zijun Ge and Sijing Ye and Chao Liu},
  title = {An Equation for the Prediction of Oxygen Consumption in Chinese Adults},
  journal = {American Journal of Life Sciences},
  volume = {9},
  number = {6},
  pages = {173-179},
  doi = {10.11648/j.ajls.20210906.13},
  url = {https://doi.org/10.11648/j.ajls.20210906.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.20210906.13},
  abstract = {To develop and validate a reference equation (RE) for prediction of VO2peak in Chinese adults and compare the equation cited by Wasserman, Edvardsen, Nevil and Itoh. we reviewed the data of 554 adults with treadmill Bruce protocol of CPET (breath by breath) from R+ clinic in Chengdu. Ultimately, 313 adults (aged from 20-59 years) including smokers, obese, were judged to have normal cardiorespiratory system without vascular disease (CVD), hypertension, diabetes and other chronic pulmonary disease based on case history, physical, electrocardiogram during rest and exercise, and exercise performance. The 313 sample was divided into 80% construction group (CG) and 20% validation group (VG) using a case random method. Oxygen consumption, Maximal heart rate (HRmax) and respiratory exchange ratio (RER) were collected in the state of exhaustion. The influence of potential confounding factors, such as age, sex, weight, height and BMI were analyzed for their influencing power at the RE. The equation was predicted by regression analyses. RE was also tested in the VG. Simultaneously, we compared measure VO2peak with predicted values calculated with four equations from Wasserman, Edvardsen, Nevil and Itoh. The line chart that predicted VO2max changes in BMI, height classification and measured among equations was plotted. The mean age and VO2max were 36.63±9.49 years and 32.82 ± 6.01 ml.kg-1.min-1, respectively. For model construction, two prediction equations with acceptable accuracy were developed (R2 = 0.67 - 0.71; SEE = 0.02028 - 0.02033). In VG, the difference was not significant between measured and predicted VO2peak from model 2 and model 1 (P > 0.05). However, difference came up between the average VO2peak predicted by cited equation and the CPET measured VO2peak, as well as the difference gotten from the RE (P 2max values close to those directly measured by CPET, while Europe and America equations overestimated the VO2max. The predicted values of VO2max calculated from Itoh equation revealed a very good consistence among normal and low weight.},
 year = {2021}
}

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