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Effect of steady-state aerobic exercise intensity and duration on the relationship between reserves of heart rate and oxygen uptake.
Ferri Marini, Carlo; Federici, Ario; Skinner, James S; Piccoli, Giovanni; Stocchi, Vilberto; Zoffoli, Luca; Correale, Luca; Dell'Anna, Stefano; Naldini, Carlo Alberto; Vandoni, Matteo; Lucertini, Francesco.
Afiliação
  • Ferri Marini C; Department of Biomolecular Sciences -Division of Exercise and Health Sciences, University of Urbino Carlo Bo, Urbino, PU, Italy.
  • Federici A; Department of Biomolecular Sciences -Division of Exercise and Health Sciences, University of Urbino Carlo Bo, Urbino, PU, Italy.
  • Skinner JS; Department of Kinesiology, Indiana University, Bloomington, IN, USA.
  • Piccoli G; Department of Biomolecular Sciences -Division of Exercise and Health Sciences, University of Urbino Carlo Bo, Urbino, PU, Italy.
  • Stocchi V; Department of Human Sciences for the Promotion of Quality of Life, University San Raffaele Roma, Rome, RM, Italy.
  • Zoffoli L; Department of Biomolecular Sciences -Division of Exercise and Health Sciences, University of Urbino Carlo Bo, Urbino, PU, Italy.
  • Correale L; Scientific Research & Innovation Department, Technogym S.p.A., Cesena, FC, Italy.
  • Dell'Anna S; Sports Science Unit, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, PV, Italy.
  • Naldini CA; Sports Science Unit, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, PV, Italy.
  • Vandoni M; Department of Theoretical and Applied Sciences, eCampus University, Novedrate, CO, Italy.
  • Lucertini F; Laboratory of Adapted Motor Activity (LAMA), Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, PV, Italy.
PeerJ ; 10: e13190, 2022.
Article em En | MEDLINE | ID: mdl-35497191
ABSTRACT

Background:

The percentages of heart rate (%HRR) or oxygen uptake (%V̇O2R) reserve are used interchangeably for prescribing aerobic exercise intensity due to their assumed 11 relationship, although its validity is debated. This study aimed to assess if %HRR and %V̇O2R show a 11 relationship during steady-state exercise (SSE) and if exercise intensity and duration affect their relationship.

Methods:

Eight physically active males (age 22.6 ± 1.2 years) were enrolled. Pre-exercise and maximal HR and V̇O2 were assessed on the first day. In the following 4 days, different SSEs were performed (running) combining the following randomly assigned durations and intensities 15 min, 45 min, 60% HRR, 80% HRR. Post-exercise maximal HR and V̇O2 were assessed after each SSE. Using pre-exercise and post-exercise maximal values, the average HR and V̇O2 of the last 5 min of each SSE were converted into percentages of the reserves (%RES), which were computed in a 3-way RM-ANOVA (α = 0.05) to assess if they were affected by the prescription parameter (HRR or V̇O2R), exercise intensity (60% or 80% HRR), and duration (15 or 45 min).

Results:

The %RES values were not affected by the prescription parameter (p = 0.056) or its interactions with intensity (p = 0.319) or duration and intensity (p = 0.117), while parameter and duration interaction was significant (p = 0.009). %HRRs and %V̇O2Rs did not differ in the 15-min SSEs (mean difference [MD] = 0.7 percentage points, p = 0.717), whereas %HRR was higher than %V̇O2R in the 45-min SSEs (MD = 6.7 percentage points, p = 0.009).

Conclusion:

SSE duration affects the %HRR-%V̇O2R relationship, with %HRRs higher than %V̇O2Rs in SSEs of longer duration.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Consumo de Oxigênio / Teste de Esforço Limite: Adult / Humans / Male Idioma: En Revista: PeerJ Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Consumo de Oxigênio / Teste de Esforço Limite: Adult / Humans / Male Idioma: En Revista: PeerJ Ano de publicação: 2022 Tipo de documento: Article