Int J Sports Med
DOI: 10.1055/a-1310-3900
Training & Testing

A Generalized Equation for Prediction of VO2peak from a Step Test

1  Department of Human Performance, Minnesota State University Mankato, Mankato, United States
,
Joshua Kelly
2  Department of Health and Nutritional Sciences,South Dakota State University, Brookings, United States
,
Kathleen Gums
2  Department of Health and Nutritional Sciences,South Dakota State University, Brookings, United States
,
Jessica R. Meendering
2  Department of Health and Nutritional Sciences,South Dakota State University, Brookings, United States
,
Matt Vukovich
2  Department of Health and Nutritional Sciences,South Dakota State University, Brookings, United States
› Author Affiliations

Abstract

This study aimed to develop an equation to reduce variability of VO2peak prediction from a step test and compare VO2peak prediction from the new equation to the Queen’s College Step Test (QCST). The development group (n=86; 21.7±2 years) was utilized to develop the SDState step test equation to predict relative VO2peak. The cross-validation group (n=99; 21.6±2 years) was used to determine the validity of the SDState step test VO2peak prediction equation. A regression analysis was used to identify the best model to predict VO2peak. Analysis of variance (ANOVA) was further used to determine differences among predicted and measured VO2peak values. Forward stepwise multiple regression identified age, sex, abdominal circumference, and active heart rate at the 3-min mark of the step test to be significant predictors of VO2peak (mL·kg−1·min−1). No differences among measured VO2peak (47.3±7.1 mL·kg−1·min−1) and predicted VO2peak (QCST, 46.9±9.3 mL·kg−1·min−1; SDState 48.3±5.7 mL·kg−1·min−1) were found. Pearson correlations, ICC, SEE, TEE, Bland-Altman plots, and Mountain plots indicate the SDState step test equation provides less variation in the prediction of VO2peak compared to the QCST. The SDState step test equation is effective for predicting VO2peak from the YMCA step test in young, healthy adults.



Publication History

Received: 04 September 2020

Accepted: 03 November 2020

Publication Date:
22 December 2020 (online)

© 2020. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany