Influence of aerobic fitness on the correspondence between heart rate variability and ventilatory threshold
| Autor: | Nicolle de Souza Dias, Lúcio Flávio Soares-Caldeira, Priscila Chierotti, Fábio Yuzo Nakamura, Carla Cristiane da Silva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
business.industry Vagal modulation Cardiorespiratory fitness General Medicine Heart rate variability analysis Incremental test Cardiac autonomic responses Internal medicine Progressive exercise test Cardiology Medicine Heart rate variability Aerobic exercise business Ventilatory threshold |
| Zdroj: | Brazilian journal of physical education and sport; Vol. 34 No. 4 (2020); 555-566 Revista Brasileira de Educação Física e Esporte; Vol. 34 Núm. 4 (2020); 555-566 Revista Brasileira de Educação Física e Esporte; v. 34 n. 4 (2020); 555-566 Revista Brasileira de Educação Física e Esporte Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1981-4690 1807-5509 |
| Popis: | The aims of this study were to verify the correspondence between heart rate variability (HRV) and ventilatory thresholds during a progressive exercise test and the relationship with low and high aerobic fitness levels. Twenty male volunteers (29.5±6.2 years; 75.9±13.0 kg; 175.0±7.4 cm) were recruited. The subjects were allocated to two groups according to their VO2max 48.81 ml•kg−1•min−1 (high cardiorespiratory fitness group) (n=10). A progressive test was performed, consisting of 3-min stages beginning at 25 watts and increasing by 25 watts every 3-min. The HRV threshold (HRVT) and ventilatory threshold (VT) analyses were performed through visual inspection. The comparisons with RMSSD values in percentage of maximum workload resulted in a higher effect size (ES) than the SDNN values. The VO2 in the high cardiorespiratory fitness group at VT (+32%), HRVTRMSSD (+27%), and HRVTSDNN (+31%) was signifi cantly higher compared to the group with low cardiorespiratory fitness. Higher values were observed for relative load (W•kg-1) at VT and HRVTSDNN in the high cardiorespiratory fitness group in comparison with the low cardiorespiratory fitness group (P48.81 ml•kg−1•min−1 (high cardiorespiratory fitness group) (n=10). A progressive test was performed, consisting of 3-min stages beginning at 25 watts and increasing by 25 watts every 3-min. The HRV threshold (HRVT) and ventilatory threshold (VT) analyses were performed through visual inspection. The comparisons with RMSSD values in percentage of maximum workload resulted in a higher effect size (ES) than the SDNN values. The VO2 in the high cardiorespiratory fitness group at VT (+32%), HRVTRMSSD (+27%), and HRVTSDNN (+31%) was signifi cantly higher compared to the group with low cardiorespiratory fitness. Higher values were observed for relative load (W•kg-1) at VT and HRVTSDNN in the high cardiorespiratory fitness group in comparison with the low cardiorespiratory fitness group (P |
| Databáze: | OpenAIRE |
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