The effect of caffeine on recovery in sprinters Universiti Pendidikan Sultan Idirs

Khairun Hanisah Kamarudin

Abstract

Research on the effect of caffeine is widening all over the world and caffeine is most likely known as an ergogenic aid in enhancing sports performance and recovery faster. The purpose of this study is to identify the effect of caffeine on recovery heart rate in UPSI Sprinters. Individual heart rate produced may vary at different time of the day and their food intake. 10 male sprinter athletes (n=IO) from Fox Athletics Club of Universiti Pendidikan Sultan Idris had participated in this study. Participants were divided into two groups, caffeine group (n=5) and control group (n=5) accordingly. Training sessions were conducted with one week interval and sprint training were performed by the sprinters as the exercise load method. Control group was not given any caffeine (0.00 mg/kg) while the caffeine group was given 3.00-3.50 mg/kg of caffeine dosage before the training session begun. The sprint training involved sprinting in distance set of 10m, 30m, 50m, 80m and 100m with 5 minutes rest interval between sets and ended with cooling down. Multiple heart rate recovery (HRR) recorded according to the time trend lmin, 5th min, 10th min, 20th min, 30th min, 40th min, 50th min and 60th min 5 minutes after the session end. The heart rate of recovery on time trend for both groups, control and caffeine group were significantly different (p < 0.05). As there was an interaction effect between control and caffeine group in recovery heart rate with the time trend in UPSI sprinters, which the HRR of caffeine group was linearly decreasing from the first minute to the 60th minute lower than the control group. HRR of control group was also decreasing linearly but higher than the caffeine group from the first minute to 60th minute. Thus, caffeine does help sprinters to recover faster within a safe limit of caffeine dosage intake.

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