Gaining increasing popularity within the fitness sector, CrossFit®
serves as an appealing and efficient high intensity training approach to develop strength and endurance on a functional level; and music is often utilized to produce ergogenic effects. The present randomized, controlled, crossover study aimed at investigating the effects of music vs.
non-music on performance, physiological and psychological outcomes. Thirteen (age: 27.5, standard deviation (SD) 6.2 years), healthy, moderately trained subjects performed four identical workouts over two weeks. The order of the four workouts (two with, and two without music, 20 min each) was randomly assigned for each individual. Acute responses in work output, heart rate, blood lactate, rate of perceived exertion, perceived pain, and affective reaction were measured at the 5th, 10th, 15th, and 20th min during the training sessions. Training with music resulted in a significantly lower work output (460.3 repetitions, SD 98.1 vs.
497.8 repetitions, SD 103.7; p
= 0.03). All other parameters did not differ between both music conditions. This is partly in line with previous findings that instead of providing ergogenic effects, applying music during CrossFit®
may serve as a more distractive stimulus. Future studies should separate the influence of music on a more individual basis with larger sample sizes.