Effects of Concurrent Training and a Multi-Ingredient Performance Supplement Containing and on Body Composition, Performance, and Health in Active Men.

INTRODUCTION

Supplementation with and has been shown to improve aerobic performance, but their influence on concurrent training (resistance training plus high intensity interval training) outcomes has not been established. The purpose of this study was to determine the effects of supplementation with a multi-ingredient performance supplement (MIPS) containing RR and CS during a 14-week training and testing program on body composition, weekly exercise training outcomes, overall training and performance outcomes, and hormone profiles.

METHODS

Active college-aged men (=21) were stratified into either a MIPS or a placebo (PLA) group. Both groups completed 14weeks of training and testing. Body composition, overall training outcomes, and blood sample collection occurred at weeks 0, 7, and 14, while training performance was evaluated weekly.

RESULTS

Both groups improved (<0.05) percent body fat (-1.3%), bench press (+4%) and squat strength (+8%), with no difference between groups. Serum cortisol concentrations significantly decreased (-11%) but there were no differences between groups. No other changes in blood hormone profiles occurred. Weekly exercise performance data suggests that MIPS improved sprint performance, bench press lifting volume, and total workload, but this did not lead to improved overall training performance compared to PLA over the14-week study.

CONCLUSION

Despite MIPS improving certain aspects of weekly training performance, supplementation with MIPS for 14weeks did not improve body composition, overall training and performance outcomes, or blood biomarkers of health in response to concurrent training in young men compared to PLA. This study was registered with clinicaltrials. gov (NCT02383017).