Leucine Supplementation in Young Subjects Undergoing Resistance Training

Leucine supplementation could be useful to support muscle anabolism. This study aims to investigate the effects of leucine supplementation on muscle mass and muscle strength in young subjects undergoing resistance training.

Inclusion Criteria:

• training experience > 12 months
• no previous use of anabolic steroids
• no diagnosed diseases or injuries at the time of recruitment
• one-maximum repetition strength (1-RM) in leg press ≥ 3.5 and ≤ 5.0 times the body weight

Exclusion Criteria:

• use of creatine or beta-alanine supplements for the last 3 months
• use of protein or aminoacids supplements for the last 1 month
• engagement in specific dietary restrictions
• engagement in competitive sports