2026-04-17T05:13:19Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1745272025-12-04T21:15:15Zcom_2072_1057col_2072_478781col_2072_478917

00925njm 22002777a 4500 dc Capó, Xavier author Martorell, Miquel author Ferrer, Miguel D. author Sureda, Antoni author Pons, Victoria author Domingo i Pedrol, Joan Carles author Drobnic, F. author Martínez Rodríguez, Alejandro author Leyva-Vela, Belén author Sarabia, José M. author Herranz López, María author Roche, Enrique author Tur, Josep A. author Pons, Antoni author 2021-03-02T16:09:35Z 2021-03-02T16:09:35Z 2020-03-27 2021-03-02T16:09:36Z Our aim was to characterize the effects of calorie restriction on the anthropometric characteristics and physical performance of sportsmen and to evaluate the effects of calorie restriction and acute exercise on mitochondria energetics, oxidative stress, and inflammation. Twenty volunteer taekwondo practitioners undertook a calorie restriction of 30-40% on three alternate days a week for one month. Eleven volunteer sportsmen participated as controls. Both groups performed an energy effciency test to evaluate physical performance, and samples were taken before and after exercise. The total weight of participants significantly decreased (5.9%) after calorie restriction, while the effciency of work and the contributions of fat to obtain energy were enhanced by calorie restriction. No significant differences induced by acute exercise were observed in individual non-esterified fatty acid percentage or oxidative stress markers. Calorie restriction downregulated the basal gene expression of nitric oxide synthase, antioxidant enzymes, mitochondrial uncoupling proteins, and repairing stress proteins, but it enhanced the expression of sirtuins in peripheral blood mononuclear cells. In conclusion, one month of calorie restriction decreases body weight and increases physical performance, enhancing energy effciency, moderating the antioxidant and inflammatory basal gene expression, and influencing its response to acute exercise. Exercici Inflamació Dietes d'aprimament Antioxidants Exercise Inflammation Reducing diests Antioxidants Calorie restriction improves physical performance and modulates the antioxidant and inflammatory responses to acute exercise