Nutrição e performance esportiva – Artigo 11

Fructose ingestion impairs expression of genes involved in skeletal muscle’s adaptive response to aerobic exercise Abstract Background: The inverse relationship between exercise capacity and its variation over time and both cardiovascular and all-cause mortality suggests the existence of an etiological nexus between cardiometabolic diseases and the molecular regulators of exercise capacity. Coordinated adaptive responses elicited by physical ...

Nutrição e performance esportiva – Artigo 10

Evaluation of the effects of two doses of alpha glycerylphosphorylcholine on physical and psychomotor performance Abstract Background: Recent studies have suggested that alpha glycerylphosphorylcholine (A-GPC) may be an effective ergogenic aid. The present study was designed to assess the efficacy of two doses of A-GPC in comparison to placebo and caffeine for increasing countermovement jump performance, isometric strength, and psychomotor ...

Nutrição e performance esportiva – Artigo 09

Effects of two pre-workout supplements on concentric and eccentric force production during lower body resistance exercise in males and females: a counterbalanced, double-blind, placebo-controlled trial Abstract Background: Pre-workout supplements purportedly enhance feelings of energy, reduce fatigue and improve exercise performance. The purpose of this study was to examine the performance effects of caffeinated and noncaffeinated multi-ingr...

Nutrição e performance esportiva – Artigo 08

Effects of Potassium Bicarbonate Supplements on Circulating microRNA Expression Several studies suggest that neutralizing acid load in the diet with alkali had favorable effects on intermediate markers of musculoskeletal health. We examined whether alkali supplementation with potassium bicarbonate [(KHCO3); 81 mmol/d; n = 12] vs placebo (n = 12) for 84 days altered serum microRNAs, potential biomarkers associated with innumerable biological ...

Nutrição e performance esportiva – Artigo 07

Effects of acute carbohydrate ingestion on anaerobic exercise performance Abstract Background: Carbohydrate (CHO) supplementation during endurance exercises has been shown to increase performance, but there is limited research with CHO supplementation during strength and conditioning exercises. Therefore, the purpose of this study was to examine the effects of various levels of CHO ingestion during acute testing sessions requiring participants ...

Nutrição e performance esportiva – Artigo 06

Effects of a pre-workout supplement on hyperemia following leg extension resistance exercise to failure with different resistance loads Abstract Background: We sought to determine if a pre-workout supplement (PWS), containing multiple ingredients thought to enhance blood flow, increases hyperemia associated with resistance training compared to placebo (PBO). Given the potential interaction with training loads/time-under-tension, we evaluated ...

Nutrição e performance esportiva – Artigo 05

Effect of protein and carbohydrate solutions on running performance and cognitive function in female recreational runners Abstract This study compared the effects of a carbohydrate–electrolyte–protein solution (CEPS, 2% protein plus 4% carbohydrate), carbohydrate–electrolyte solution (CES, 6% carbohydrate), and noncaloric sweetened placebo (PLA) on both 21-km running performance and cognitive function. Eleven female recreational endura...

Nutrição e performance esportiva – Artigo 04

Effect of carbohydrate feeding on the bone metabolic response to running Sale C, Varley I, Jones TW, James RM, Tang JC, Fraser WD, Greeves JP. Effect of carbohydrate feeding on the bone metabolic response to running. J Appl Physiol 119: 824 – 830, 2015. First published August 6, 2015; doi:10.1152/japplphysiol.00241.2015.— Bone resorption is increased after running, with no change in bone formation. Feeding during exercise might attenuate ...