The Effect of Les Mills GRIT Small Group Personal Training on Running Endurance


Author/Creator ORCID




Goucher College Graduate Programs in Education


Masters of Education

Citation of Original Publication


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Attribution 3.0 United States


The purpose of this study was to determine whether the Les Mills GRIT™ exercise program had an effect on the running endurance of its participants. Participants underwent a pre- and posttest on a treadmill in order to determine their 5k performance times before and after their six-week exercise program respectively. It was determined that the exercise program did benefit its participants with a reduction of their 5k performance times. More research needs to be conducted in order to study whether the GRIT™ exercise program is effective in reducing the performance times of endurance runners.