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Título
Effects of Circuit Weight-Interval Training on Physical Fitness, Cardiac Autonomic Control, and Quality of Life in Sedentary Workers
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
International Journal of Environmental Research and Public Health
Número de la revista
9
Cita Bibliográfica
Oliveira-Junior, S. A.; Mendonça, M. L. M.; Vieira, L. F. C.; Mattos, W. W.; Amaral, B. O. C.; Lima-Borges, D. S.; Reis, F. A.; Cezar, M. D. M.; Vanderlei, L. C. M.; Martinez, P. F.; Boullosa Álvarez, D. A. (2021). Effects of Circuit Weight-Interval Training on Physical Fitness, Cardiac Autonomic Control, and Quality of Life in Sedentary Workers. International Journal of Environmental Research and Public Health, 18
Editorial
MDPI
Fecha
2021
Resumen
[EN] Sedentary behaviors, those that involve sitting and low levels of energy expenditure, have
been associated with several adverse cardiometabolic effects. This study evaluated the chronic
effects of a combined circuit weight interval training (CWIT) on physical fitness, quality of life, and
heart rate variability (HRV), and compared the effects of CWIT-induced autonomic adaptations on
different postures in adult sedentary workers. Twenty-seven sedentary workers (age 36.9 ± 9.2 years
old, 13 men and 14 women) were divided into two groups: control, who continued their sedentary
behavior, and experimental, who were submitted to a CWIT for 12 weeks, completing two ~40 min
sessions per week. Monitoring of 8th, 16th, and 24th sessions revealed a moderate training load
during sessions. Participants exhibited an improved aerobic capacity (VO2max, 34.03 ± 5.36 vs.
36.45 ± 6.05 mL/kg/min, p < 0.05) and flexibility (22.6 ± 11.4 vs. 25.3 ± 10.1 cm, p < 0.05) after the
training period. In addition, they showed greater quality of life scores. However, the CWIT did
not change body composition. Interestingly, more HRV parameters were improved in the seated
position. The CWIT used in the current study was associated with improvements in several fitness
and quality of life parameters, as well as in cardiac autonomic control of HR in adult sedentary
workers. Examination of different body positions when evaluating changes in HRV appears to be a
relevant aspect to be considered in further studies. Future randomized controlled trials (RCTs) with
larger samples of both sexes should confirm these promising results.
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