High intensity resistance training causes muscle damage and increases biomarkers of acute kidney injury in healthy individuals.

Purpose: High-intensity interval resistance training (HIIRT) is an increasingly popular exercise program that provides positive results with short sessions. This study aimed to evaluate whether an HIIRT session causes muscle and kidney damage.

Methods: Fifty-eight healthy volunteers (median age 24 years, 50% women) participated in this study and performed a HIIRT session.