Carlo Ferri Marini1, Davide Sisti2, Arthur S Leon3, James S Skinner4, Mark A Sarzynski5, Claude Bouchard6, Marco B L Rocchi2, Giovanni Piccoli1, Vilberto Stocchi1, Ario Federici1, Francesco Lucertini1. 1. Department of Biomolecular Sciences, Division of Exercise and Health Sciences, University of Urbino Carlo Bo, Urbino, ITALY. 2. Department of Biomolecular Sciences, Unit of Biostatistics, University of Urbino Carlo Bo, Urbino, ITALY. 3. Department of Kinesiology, University of Minnesota, Minneapolis, MN. 4. Department of Kinesiology, Indiana University, Bloomington, IN. 5. Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC. 6. Human Genomics Laboratory, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA.
Abstract
INTRODUCTION: According to current guidelines, the intensity of health-enhancing aerobic exercise should be prescribed using a percentage of heart rate reserve (%HRR), which is considered to be more closely associated (showing a 1:1 relation) with the percentage of oxygen uptake reserve (%V˙O2R) rather than with the percentage of maximal oxygen uptake (%V˙O2max) during incremental exercise. However, the associations between %HRR and %V˙O2R and between %HRR and %V˙O2max are under debate; hence, their actual relationships were investigated in this study. METHODS: Data from each stage of a maximal incremental exercise test performed by 737 healthy and physically inactive participants of the HERITAGE Family Study were screened and filtered then used to calculate the individual linear regressions between %HRR and either %V˙O2R or %V˙O2max. For each relationship, the mean slope and intercept of the individual linear regression were compared with 1 and 0 (i.e., the identity line), respectively, using one-sample t-tests. The individual root mean square errors of the actual versus the 1:1 predicted %HRR were calculated for both relationships and compared using a paired-sample t-test. RESULTS: The mean slopes (%HRR-%V˙O2R, 0.972 ± 0.189; %HRR-%V˙O2max, 1.096 ± 0.216) and intercepts (%HRR-%V˙O2R, 8.855 ± 16.022; %HRR-%V˙O2max, -3.616 ± 18.993) of both relationships were significantly different from 1 and 0, respectively, with high interindividual variability. The average root mean square errors were high and revealed that the %HRR-%V˙O2max relationship was more similar to the identity line (P < 0.001) than the %HRR-%V˙O2R relationship (7.78% ± 4.49% vs 9.25% ± 5.54%). CONCLUSIONS: Because both relationships are different from the identity line and using a single equation may not be appropriate to predict exercise intensity at the individual level, a rethinking of the relationships between the intensity variables may be necessary to ensure that the most suitable health-enhancing aerobic exercise intensity is prescribed.
INTRODUCTION: According to current guidelines, the intensity of health-enhancing aerobic exercise should be prescribed using a percentage of heart rate reserve (%HRR), which is considered to be more closely associated (showing a 1:1 relation) with the percentage of oxygen uptake reserve (%V˙O2R) rather than with the percentage of maximal oxygen uptake (%V˙O2max) during incremental exercise. However, the associations between %HRR and %V˙O2R and between %HRR and %V˙O2max are under debate; hence, their actual relationships were investigated in this study. METHODS: Data from each stage of a maximal incremental exercise test performed by 737 healthy and physically inactive participants of the HERITAGE Family Study were screened and filtered then used to calculate the individual linear regressions between %HRR and either %V˙O2R or %V˙O2max. For each relationship, the mean slope and intercept of the individual linear regression were compared with 1 and 0 (i.e., the identity line), respectively, using one-sample t-tests. The individual root mean square errors of the actual versus the 1:1 predicted %HRR were calculated for both relationships and compared using a paired-sample t-test. RESULTS: The mean slopes (%HRR-%V˙O2R, 0.972 ± 0.189; %HRR-%V˙O2max, 1.096 ± 0.216) and intercepts (%HRR-%V˙O2R, 8.855 ± 16.022; %HRR-%V˙O2max, -3.616 ± 18.993) of both relationships were significantly different from 1 and 0, respectively, with high interindividual variability. The average root mean square errors were high and revealed that the %HRR-%V˙O2max relationship was more similar to the identity line (P < 0.001) than the %HRR-%V˙O2R relationship (7.78% ± 4.49% vs 9.25% ± 5.54%). CONCLUSIONS: Because both relationships are different from the identity line and using a single equation may not be appropriate to predict exercise intensity at the individual level, a rethinking of the relationships between the intensity variables may be necessary to ensure that the most suitable health-enhancing aerobic exercise intensity is prescribed.
Authors: Ratko Peric; Zoran Nikolovski; Marco Meucci; Philippe Tadger; Carlo Ferri Marini; Francisco José Amaro-Gahete Journal: Int J Environ Res Public Health Date: 2022-05-26 Impact factor: 4.614
Authors: Rogério de Siqueira Peters; Maria do Socorro Luna Cruz; Claudio Hernández-Mosqueira; Cristian Martinez-Salazar; Fernando Policarpo Barbosa Journal: Int J Environ Res Public Health Date: 2021-11-10 Impact factor: 3.390
Authors: Carlo Ferri Marini; Ario Federici; James S Skinner; Giovanni Piccoli; Vilberto Stocchi; Luca Zoffoli; Luca Correale; Stefano Dell'Anna; Carlo Alberto Naldini; Matteo Vandoni; Francesco Lucertini Journal: PeerJ Date: 2022-04-25 Impact factor: 3.061