Paper Title
EFFECT OF HIGH INTENSITY INTERVAL TRAINING AND CREATINE INTAKE ON ANAEROBIC POWER AND MUSCLE STRENGTH

Abstract
Abstract - High-intensity interval training (HIIT) is known to affect the performance of the bioenergetic system. However, it is unknown to what extent creatine supplementation in combination with HIIT increases anaerobic power and heart rate variability. Creatine is an ergogenic support with positive effects on muscle and performance. Therefore, the overall aim of the study was to de-termine the effect of combined HIIT and creatine supplementation on anaerobic power, leg strength, heart rate variability and body composition. In this study, the Wingate-based HIIT program was applied three times a week for six weeks. Anaerobic power was measured using Wingate anaerobic power test. Heart rate variability, leg dynamometer and body composition (PlusAvis 333) were measured. All data collected 1 week prior to start of the training program and week after the end of training program. Twenty physically active adult men aged between 18-30 year old were voluntarily participated in the study. Participants were divided into two groups: Wingate-based HIIT with creatine supplementation (C-HIIT) and Wingate-based HIIT only (HIIT). As a result of the analysis, it was revealed increased on the anaerobic power parameters, peak power, average power and minimum power values, and leg strength in the C-HIIT group compared to HIIT group. In addition, C-HIIT induced improvement in HR (min) and FFT LF (ms2) values, but did not cause any change in body composition. Comparative effectiveness of additive of creatine to HIIT showed to enhance anaerobic power, leg strength, heart rate varia-bility compared to only HIIT.