Abstract
25 women (60.6 ± 8.9 years) were randomized into two groups: fed (FED, n=12) or fasted (FASTED, n=13) and submitted to multicomponent training. The participants underwent anthropometric, body composition, blood pressure, biochemical blood and physical fitness assessments. There was a reduction in both groups for waist circumference [FED: 100.4±6.8 and 99.1±7.1 cm before and after the intervention, respectively; F = 4.214, p = 0.048; FASTED: 93.1±10.2 and 92.2±8.4 cm before and after the intervention, respectively; p = 0.039]. No significant changes were observed for the other outcomes. The current research results, the first in the context of aging, agree with previous studies that analyzed chronic effects of fasting, showing that fasted exercise training did not improve anthropometric measurements, body composition, or blood markers compared to the fed condition after long-term exercise training. Together, these findings suggest that fasting during multicomponent training does not affect health parameters in physically active post-menopausal women.
Highlights
Diet and exercise are the main modifiable factors for cardiovascular disease and may be important in older adults, who are at a higher risk of chronic disease (Atkins et al 2016)
Characteristics, body composition, and blood analysis between the groups before and after the multicomponent training. Both groups presented a reduction in waist circumference [F = 4.214, p = 0.048 (FED) and p = 0.039 (FASTED)]
Increased energy intake was observed on the weekend day only in the fasted group (F = 4.536, p = 0.026)
Summary
Diet and exercise are the main modifiable factors for cardiovascular disease and may be important in older adults, who are at a higher risk of chronic disease (Atkins et al 2016). The aging process is associated with increased fat and a reduction in muscle mass, strength, and mobility (Witard et al 2016, Chernoff 2005) In this sense, current physical activity guidelines for older adults indicate exercise training including aerobic capacity, muscular strength, flexibility, coordination, agility, and balance (AMERICAN COLLEGE OF SPORTS MEDICINE 2009, Bouaziz et al 2017). Current physical activity guidelines for older adults indicate exercise training including aerobic capacity, muscular strength, flexibility, coordination, agility, and balance (AMERICAN COLLEGE OF SPORTS MEDICINE 2009, Bouaziz et al 2017) In this context, multicomponent training has been demonstrated as more effective for promoting significant improvements in physical fitness than other investigated exercise protocols in women over 50 years of age (Trapé et al 2017).
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