Effects of high-velocity resistance training and creatine supplementation in untrained healthy aging males

The purpose was to investigate the effects of high-velocity resistance training (HVRT) and creatine supplementationin untrained healthy aging males. Participants were randomized to supplement with creatine(0.1 g·kg-1· d-1of creatine+ 0.1 g·kg-1· d-1of maltodextrin) or placebo (0.2 g·kg-1· d-1of maltodextrin) during 8 weeks of HVRT. Prior to and following HVRT and supplementation, assessments were made for muscle strength, muscle thickness, peak torque and physical performance. There was a significant increase over time for all measures of muscle strength (p < 0.001), muscle thickness (p < 0.001) and some measures of peak torque (knee flexion; 1.05 and 3.14 rad/s; p < 0.001) and physical performance ( balance boardtime-to-completion; p = 0.017). There was a group x time interaction for leg pressstrength (p = 0.044) and total lower-body strength ( leg press, knee flexion, knee extension combined; p = 0.039). The CR group experienced greater gains in leg pressand total lower-body strength compared to the...