Effect of High-Intensity Interval Training and Intermittent Fasting on Body Composition and Physical Performance in Active Women
Por:
Martinez-Rodriguez, A, Rubio-Arias, J, Garcia-De Frutos, J, Vicente-Martinez, M and Gunnarsson, T
Publicada:
1 jun 2021
Ahead of Print:
14 jun 2021
Resumen:
Nutritional strategies may have an effect on body composition and physical performance. Intermittent fasting (IF) is an eating pattern that cycles between periods of eating and fasting in specified time periods. Moreover, it is a common strategy among members of the athlete population that are looking for weight loss. However, this strategy may negatively affect physical performance, as compared to other weight loss strategies. The main purpose of this research was to use a cross-over design to study the effects of HIIT, with or without intermittent fasting, on muscular and anaerobic performance in 14 active women (27 +/- 6 y). To assess performance, body composition (anthropometry), hand-grip strength, and counter-movement jump (CMJ) height was measured, and a 30 s Wingate test was completed assessed. HIIT + IF reduced fat mass (1 kg, p < 0.05, d = 1.1; 1.5%, p < 0.01, d = 1.0) and increased CMJ height (6.2 cm, p < 0.001, d = 1.8). In addition, the change in CMJ height in HIIT + IF was higher over HIIT (5.2 cm, p < 0.001, d = 1.9). In conclusion, intermittent fasting could be a nutritional strategy to decrease fat mass and increase jumping performance. However, longer duration programs would be necessary to determine whether other parameters of muscle performance could be positively affected by IF.
Filiaciones:
:
Univ Alicante, Dept Analyt Chem Nutr & Food Sci, Fac Sci, Alicante 03690, Spain
ISABIAL, Alicante Inst Hlth & Biomed Res, Alicante 03010, Spain
Rubio-Arias, J:
Univ Almeria, Fac Educ Sci, Dept Educ, Almeria 04120, Spain
Garcia-De Frutos, J:
San Antonio Catholic Univ Murcia, Fac Sport, Murcia 30107, Spain
Vicente-Martinez, M:
Miguel de Cervantes European Univ, Fac Hlth Sci, Valladolid 47012, Spain
Gunnarsson, T:
Univ Copenhagen, Dept Nutr Exercise & Sports, DK-2100 Copenhagen O, Denmark
Green Published, gold
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