Acute Response of Muscular Damage Biomarkers after HIFT Exercise in Overweight Men

Purpose: The aim of this study was to investigate the acute effects of HIFT exercise, on creatine kinase (CK) and lactate dehydrogenase (LDH) in blood serum in overweight adult men. Method: Twenty-two untrained non-smoker overweight men (age, ۴۲.۹ ± ۵.۶ years; body mass, ۹۴.۲ ± ۹.۳ kg; body height, ۱۷۸.۹ ± ۴.۵ cm; and BMI, ۲۹.۰۴ ± ۳.۳ kg/m۲) volunteered to participate in this study and performed a session of HIFT exercise with ۸۰-۸۵% HRmax consisting of three sets of ۱۰ exercises. Blood samples were collected before and immediately after training to measure serum CK and LDH levels. Results: The HIFT protocol significantly increased serum CK (Pre: ۱۱۴.۶ U/L; Post: ۱۲۴.۳U/L; p< ۰.۰۵{t=-۵.۴۸, p=۰.۰۰۱}); Also, LDH had a significant increase (pre:۲۱۳.۴ U/L, post: ۲۲۵.۴U/L; p<۰.۰۵{t=-۴.۰۹, p=۰.۰۰۱}). Conclusion: It can be concluded that HIFT with AMRAP (as many repeats as possible) protocol will lead to a significant increase in some indicators of muscle damage such as CK and LDH levels in overweight men. This protocol can lead to muscle damage in overweight men.

Keywords:

Muscle damage , HIFT , Creatine Kinase , Lactate Dehydrogenase , Overweight