The Effect of Hand Grip Strength and Interval in BOTELI Method Exercises to Improve Rally Groundstroke Forehand Skills

Abstract

The purpose of this study is to determine: 1) the effect of the BOTELI method exercise on training intervals to improve rally groundstroke forehand skills; 2) the effect of the BOTELI method exercise on hand grip strength to improve rally groundstroke forehand skills; and 3) the interaction effect between training intervals and hand grip strength to improve rally groundstroke forehand skills. The research method used was an experimental design. The sample in this study consisted of 48 sports students of Universitas Sebelas Maret in 2022. Data collection techniques used the Kem-Vincent Rally Test of Rally Skill, and hand grip strength was measured using a hand dynamometer. The data analysis technique used was a two-way factorial ANOVA 2x2 with a significance level of α = 0.05 using SPSS version 26 for Windows. The results showed that variable A affected the improvement of rally groundstroke forehand skills with a value (0.000 < α 0.05) and was indicated by the value (F-count = 129.686 > F-table 4.06). Variable B affected the improvement of rally groundstroke forehand skills with a value (0.000 < α 0.05) and was indicated by the value (F-count = 198.793 > F-table 4.06). A and B showed an interaction effect on improving rally groundstroke forehand skills with a value (0.000 < α 0.05) and was indicated by the value (F-count = 18.921 > F-table 4.06). Therefore, to improve rally groundstroke forehand skills, both variables A and B, as well as the BOTELI training method, have an influence.