Analysis of Body Mass Index and Physical Condition of Martial Athletes in West Kalimantan Province: Study towards PON 2021

Abstract

Monitoring body mass index (BMI) and physical condition in sports are critical, especially in self-defense sports where weight categories and special physical conditions are used for competition. As a result, an examination is required. This study aimed to (1) determine body mass index and physical condition, (2) correlate BMI, speed, and agility factors with VO_2max, and (3) compare BMI and physical condition in karate, judo, and Kempo. The research method was descriptive quantitative and ex-post-facto. Participants included 12 karate athletes, 11 judo players, and 8 Kempo athletes aged ±20-23 years, weighing ±60-80 kg and height ±160-180 cm. Tests and measurements were used to acquire data. Data were analyzed using percentage analysis, Spearman's Rho, and Kruskal Wallis with SPSS 21. The percentage results showed that 30% of athletes were included in the "poor" category on the speed variable, 25% were included in the "poor" as well on the VO_2max, and 10% were included "overweight" on the BMI variable. A significant correlation was found in the results of the correlation between BMI and VO_2max r-0.474 and the value of sig. (2-tailed) 0.007< 0.05. A comparison of all variables with asymp. sig. values greater than 0.05 revealed no significant difference. It was concluded that, in terms of BMI, it is necessary to organize nutritional periodization of athletes whose physical condition has to be improved following the periodization carried out with the hope that nutritional status and physical condition will improve. The findings of this study are expected to be an evaluation for coaches and athletes.