| Autor: |
DE Almeida PC; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., DA Rosa Lima T; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., Avila ETP; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., Tolazzi GJ; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., Cavalcante LP; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., Navalta JW; University of Nevada-Las Vegas, Las Vegas, Nevada, USA., Tibana RA; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., DE Souza RL; Graduate Program in Veterinary Sciences, Faculty of Veterinary Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., Segri NJ; Department of Statistics, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., DE Souza ÉC; Department of Statistics, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL., Vieira RC; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL.; State University of Mato Grosso, Cáceres, Mato Grosso, BRAZIL., Voltarelli FA; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, Mato Grosso, BRAZIL. |
| Abstrakt: |
The study tested the hypothesis that a high protein diet based on isolated whey protein (IWP) associated with strength training improves performance and reduces body fat without promoting health damage. Male Wistar rats, 45 days old, were divided into four groups ( n = 8/group): normoprotein sedentary (IWP 14%; NS); hyperprotein sedentary (IWP 35%; HS); normoprotein trained (IWP 14%; NT) and hyperprotein trained (IWP 35%; HT). All groups performed the maximum load test at the beginning and after the vertical ladder training protocol for 6 weeks (3x/week). The performance improved in HT when compared to other groups. There was no difference in the plasma levels of testosterone, IGF-1 and the hematological parameters remained normal. The relative weights of the kidneys were higher in the groups fed with high protein; the liver was higher in HT compared to NS and NT, and the heart was higher in HS compared to NS and NT. Concerning relative muscle weight, quadriceps, and gastrocnemius, HT showed higher value compared to NT. Diet containing 35% isolate whey protein associated with resistance training improved performance as well as increased muscles and organs weight of the animals, without damaging the tissues related to protein metabolism (confirmed by unchanged hematological parameters), which may minimize the risk of developing cardiometabolic disorders. |
