BACKGROUND: The six-minute walk test (SMWT) is an easy-to-use test that measures walking distance. AIM: To elaborate an equation to estimate the maximum oxygen consumption (VO2 max) using the results of the SMWT. MATERIAL AND METHODS: Forty men and 40 women aged 22.5 ± 2 years, underwent a SMWT to measure the total walked distance and the recovery heart rate (RhR) Also, VO2 max was estimated from the maximal workload achieved in a cyclo-ergometer using the Storer test. A multivariate regression analysis resulted in a prediction equation that was validated with distributional assumptions of normality, independence and homoscedasticity. The limits of concordance of the predictive model were checked with the Bland-Altman diagram. RESULTS: Body mass index (BMI), sex, RhR and total walked distance explained VO2 max variance by 3.4, 73.1, 17.9 and 32.8%, respectively. The prediction equation achieved was VO2 max (ml.min-1) = -3672.585 + (966.472 × Sex [1: female, 2: male]) + (-18.492 X RhR [beats.minute-1]) + (9.191 X Distance [m]) + (87.707 × BMI). The R2 of the equation was 0.91 (p < 0.01). CONCLUSIONS: This equation predicts VO2 max in Chilean university students according to sex, BMI, cardiovascular response and performance in the SMWT.
BACKGROUND: The six-minute walk test (SMWT) is an easy-to-use test that measures walking distance. AIM: To elaborate an equation to estimate the maximum oxygen consumption (VO2 max) using the results of the SMWT. MATERIAL AND METHODS: Forty men and 40 women aged 22.5 ± 2 years, underwent a SMWT to measure the total walked distance and the recovery heart rate (RhR) Also, VO2 max was estimated from the maximal workload achieved in a cyclo-ergometer using the Storer test. A multivariate regression analysis resulted in a prediction equation that was validated with distributional assumptions of normality, independence and homoscedasticity. The limits of concordance of the predictive model were checked with the Bland-Altman diagram. RESULTS: Body mass index (BMI), sex, RhR and total walked distance explained VO2 max variance by 3.4, 73.1, 17.9 and 32.8%, respectively. The prediction equation achieved was VO2 max (ml.min-1) = -3672.585 + (966.472 × Sex [1: female, 2: male]) + (-18.492 X RhR [beats.minute-1]) + (9.191 X Distance [m]) + (87.707 × BMI). The R2 of the equation was 0.91 (p < 0.01). CONCLUSIONS: This equation predicts VO2 max in Chilean university students according to sex, BMI, cardiovascular response and performance in the SMWT.
Authors: David C Andrade; Marcelo Flores-Opazo; Luis Peñailillo; Pedro Delgado-Floody; Johnattan Cano-Montoya; Jaime A Vásquez-Gómez; Cristian Alvarez Journal: J Clin Med Date: 2021-11-27 Impact factor: 4.241
Authors: Olha Podrihalo; Svetlana Savina; Leonid Podrigalo; Sergii Iermakov; Władysław Jagiełło; Łukasz Rydzik; Wiesław Błach Journal: Int J Environ Res Public Health Date: 2020-11-16 Impact factor: 3.390