Correlation between Ankle Stability, Strength and Endurance of Plantar Flexor Muscle in Volleyball Player Agility Skill at UKM Voli Universitas Esa Unggul

Abstract

Objective: Determine the correlation between ankle stability, strength and endurance of plantar flexor muscle in volleyball player agility skill at volleyball students activity unit Esa Unggul University aged 18-25 years. Method: This study is a non-experimental study in the form of a correlation study to analyze the relationship between ankle stability, strength and endurance of plantar flexor muscle in volleyball player agility skill. The total sample is 18 volleyball players aged 18-25 years who are members of volleyball students activity unit Esa Unggul University, West Jakarta. The measuring instruments used were single leg balance (ankle stability), 1RM heel raise test (plantar flexor strength), heel raise test (plantar flexor endurance) and hexagonal obstacle test (agility skill). Result: Correlation test between ankle stability and agility skill with SpearmanRank Test obtained a significance value p= 0.XXX, (p>0.05) and r=0.XXX. Strength and agility with Spearman-Rank Test obtained a significance value p= 0.673 (p>0.05) and r=0,10. For correlation test between plantar flexor muscle endurance obtained significance value with p = 0.824 andr=-0.057.