Program and book of abstracts 1st conference

October 17 th – 20 th , 2022, Congress Centre of Slovak Academy of Sciences, Smolenice castle, Slovakia

Todorovic Nikola

Nikola Todorović is currently working as a teaching assistant at the Faculty of Sport and Physical Education, University of Novi Sad. He is also a Ph.D. student and lab technician investigating various interventions' effects on biomarkers of energy metabolism and health-related lifestyle behaviors in clinical and non-clinical populations. The topic of his doctoral dissertation is the examination of the effect of molecular hydrogen on cellular bioenergetics. Nikola Todorović, M.sc, has experience implementing scientific knowledge in practical work with various populations, from clinical patients to experience athletes.

ACUTE EFFECTS OF HYDROGEN RICH-WATER BATH ON MUSCULAR DAMAGE BIOMARKERS AND SORENESS PERCEPTION AFTER HIGH-INTENSITY ECCENTRIC TRAINING N. Todorovic 1 , D. Javorac 1 , V. Stajer 1 , S.M. Ostojic 1, 2,3 1 Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia, 2 Faculty of Health Sciences, University of Pecs, Pecs, Hungary, 3 Department of Nutrition and Public Health, University of Agder, Norway. BACKGROUND: Recovering fromheavy eccentric exercise is particularly difficult because eccentric training is the leading cause of the delayed onset of muscle soreness (DOMS). Previous studies suggested that hydrogen-rich water (HRW) could be an effective topical agent to speed up recovery in musculoskeletal therapy. However, there is currently limited data on the efficacy and safety of whole-body HRWbathing after DOMS-inducing exercise. OBJECTIVE: This study aims to examine the impact of a single HRW bathing session on biochemical indicators of muscle damage among healthy, physically active young men. METHODS: Six men (age 24 ± 4 years, body mass index 25 ± 1.61) volunteered to participate in this study. Participants were allocated in a double-blind crossover design to receive a single session bath with a highly saturated HRW or control solution (tap water), immediately after a highly intensive DOMS exercise protocol. HRW and nonhydrogen producing magnesium tablets were provided by HRWNatural Health Products Inc. (NewWestminster, BC, Canada). Outcomes assessed at baseline (pre-exercise) and 24-hour follow-up were blood biomarkers of muscle damage (creatine kinase (CK), aldolase, AST, LDH, myoglobin, troponin, and CRP) and a visual analog scale (VAS) for perceiving fatigue and pain. RESULTS: HRW bath partially prevented an increase in circulating biomarkers of exercise induced muscular damage except CK at 24-hour follow-up, maintaining the levels of all other biomarkers comparable to the baseline values (P>0.05). In contrast, serumCK, aldolase, andAST were significantly elevated at 24-hour follow-up, while leucocytes were decreased after the control bath (P < 0.05). In addition, VAS was significantly lower for both HRW bath and control bath after receiving the therapy but maintained lower only for HRW intervention at 24h followed-up. CONCLUSION:Whole-body bathing in supersaturatedHRWis a safe and innovative recovery procedure that reduces muscle damage and fatigue after high-intensity eccentric exercise.

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