Chronic Effects of Different Intensities of Interval Training on Hemodynamic, Autonomic and Cardiorespiratory Variables of Physically Active Elderly People

Leandro Sant’Ana, Diogo Monteiro, Henning Budde, Aline Aparecida de Souza Ribeiro, João Guilherme Vieira, Estêvão Rios Monteiro, Fabiana Rodrigues Scartoni, Sérgio Machado and Jeferson Macedo Vianna
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Leandro Sant’Ana: Post Graduate Program in Physical Education, Federal University of Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil
Diogo Monteiro: ESECS, Polytechnic of Leiria, 2411-901 Leiria, Portugal
Henning Budde: Institute for Systems Medicine (ISM), Faculty of Human Sciences, Medical School Hamburg, University of Applied Science and Medical University, 20457 Hamburg, Germany
Aline Aparecida de Souza Ribeiro: Post Graduate Program in Physical Education, Federal University of Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil
João Guilherme Vieira: Post Graduate Program in Physical Education, Federal University of Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil
Estêvão Rios Monteiro: Post Graduate Program in Physical Education, Federal University of Rio de Janeiro, Rio de Janeiro 21941-599, RJ, Brazil
Fabiana Rodrigues Scartoni: Sport and Exercise Science Laboratory, Catholic University of Petrópolis, Petrópolis 25685-100, RJ, Brazil
Sérgio Machado: Departament of Sports Methods and Techniques, Federal University of Santa Maria, Santa Maria 97105-900, RS, Brazil
Jeferson Macedo Vianna: Post Graduate Program in Physical Education, Federal University of Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil

IJERPH, 2023, vol. 20, issue 9, 1-13

Abstract: Interval training (IT) is a very efficient method. We aimed to verify the chronic effects of IT with different intensities on hemodynamic, autonomic and cardiorespiratory variables in the elderly. Twenty-four physically active elderly men participated in the study and were randomized into three groups: Training Group A (TG A , n = 8), Training Group B (TG B , n = 8) and control group (CG, n = 8). The TG A and TG B groups performed 32 sessions (48 h interval). TG A presented 4 min (55 to 60% of HRmax) and 1 min (70 to 75% of HRmax). The TGB training groups performed the same protocol, but performed 4 min at 45 to 50% HRmax and 1 min at 60 to 65% HRmax. Both training groups performed each set six times, totaling 30 min per session. Assessments were performed pre (baseline) after the 16th and 32nd intervention session. The CG performed only assessments. Hemodynamic, autonomic and cardiorespiratory (estimated VO 2max ) variables were evaluated. There were no significant differences between protocols and times ( p > 0.05). However, the effect size and percentage delta indicated positive clinical outcomes, indicating favorable responses of IT. IT may be a strategy to improve hemodynamic, autonomic and cardiorespiratory behavior in healthy elderly people.

Keywords: interval training; cardioprotection; elderly; hemodynamic variables; heart rate variability; maximal oxygen consumption (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2023
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