Effects of Arginine-Based Supplements on the Physical Working Capacity at the Fatigue Threshold

摘要: The purpose of the present study was to examine effects daily oral administration arginine-based supplements for 4 weeks on physical working capacity at fatigue threshold (PWCFT). PWCFT test is an electromyographic (EMG) procedure estimating highest power output that can be maintained without neuromuscular evidence fatigue. used a double-blind, placebo-controlled design. Fifty college-aged men (mean age +/- SD = 23.9 3.0) were randomized into 1 3 groups: (a) placebo (n 19); (b) 1.5 g arginine 14); or (c) 3.0 17). microcrystalline cellulose. 1.5-g group ingested and 300 mg grape seed extract, whereas extract. All subjects performed incremental exhaustion cycle ergometer determine their before supplementation (PRE) after (POST). Surface EMG signals recorded from vastus lateralis using bipolar electrode arrangement during tests determination PRE POST values. There significant mean increases (PRE POST) in (22.4%) (18.8%) supplement groups, but no change (-1.6%). These findings supported use supplements, dosages examined investigation, as ergogenic aid untrained individuals.