Correlation study between arm muscle endurance and arm length and accuracy of 30-meter arrow shots in a national round

Indonesian archery as a sport has contributed a silver medal to the Indonesian contingent at the 1988 Seoul Olympics, but at the next Olympics, Indonesian archery did not contributed medals to the Indonesian contingent. Archery achievement is determined by the accuracy of arrows shot at the target of each series, and many factors affect the arrow shot accuracy. This study aimed to determine a correlation between the arm muscle endurance and the long arm with the accuracy of arrow shot at a distance of 30 m in the National Round of junior archery athletes in DKI Jakarta. The population included in this study were archery athletes in DKI Jakarta. The sample in this study consisted of 20 junior athletes, and we used a purposive sampling method. The study was conducted in the archery field at DKI Jakarta. The research method for this study was a survey method with correlation techniques. To process the data obtained from the results of the arm muscle endurance test (Xļ), the results of the arm length (X2) and the accuracy of arrow shot 30 m in the National Round (Y), we used regression and correlation analysis techniques. This research was conducted with data in the field to determine the correlation between arm muscle endurance (Xļ) and arm length (X2) using the arrow shot 30-meter National Round (Y) which was determined by the regression equation Y = 5.183 + 0.447X1 + 0.449X2. The relationship between these variables is shown by the subordinates. The correlation coefficient was RY1-2 = 0.632. The coefficient correlation significance test showed that F count = 11.075 was greater than F table = 3.592, which indicated that the coefficient correlation of RY1-2 = 0.752 is meaningful. The coefficient of determination as (RY1-22) = 0.566. Thus, it was determined that 56.6% of the accuracy of arrows shot 30 m in the National Round were due to the combined arm muscle endurance (Xļ) and the arm length (X2). Based on these results, there was a significant relationship between arm muscle endurance and arm length and the accuracy of arrows shot at 30 m in the National Round. This study was showed that it is still necessary to know and examine some of the factors that affect arrow accuracy and calculate the joint relationship.