Effects of β-alanine supplementation and high-intensity interval training on endurance performance and body composition in men; a double-blind trial

Abstract

Background: Intermittent bouts of high-intensity exercise result in diminished stores of energy substrates, followed by an accumulation of metabolites, promoting chronic physiological adaptations. In addition, β-alanine has been accepted has an effective physiological hydrogen ion (H + ) buffer. Concurrent high-intensity interval training (HIIT) and β-alanine supplementation may result in greater adaptations than HIIT alone. The purpose of the current study was to evaluate the effects of combining β-alanine supplementation with high-intensity interval training (HIIT) on endurance performance and aerobic metabolism in recreationally active college-aged men.

Effects of Beta-Alanine Supplementation on Sprint Endurance

“…In a similar study, Smith et al (29) examined the effects of beta-alanine supplementation and high-intensity interval training (HIIT) on endurance performance and aerobic metabolism. In this study, 46 recreationally trained college-aged males participated in the study.…”

Muscle Carnosine Metabolism and β-Alanine Supplementation in Relation to Exercise and Training

“…According to Smith et al [110], the effects of six weeks of high-intensity interval training on EMG-based neuromuscular fatigue in recreationally active men were not different between a control and a beta-alanine (3-6 g.day -1 ) supplemented group. In physical education students, the supplementation of 6.4 g .…”

Effect of β-alanine supplementation on 20 km cycling time trial performance

“…In particular, several studies have focussed on the effects of β-alanine supplementation on high intensity cycling capacity and have shown significant increases following supplementation [11][12][13] . The effects of β-alanine supplementation on cycling performance are more equivocal, with some showing no e ect 14 and others a signi cant improvement 15 .…”