Validity And Reliability Of A New Test Of Planned Agility In Elite Taekwondo Athletes

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This study aimed to examine the validity, reliability, and sensitivity of a new test of planned agility in elite taekwondo athletes and to establish its relationship with sprint-time, jumping ability, and dynamic balance. Twenty-seven (20 males and 7 females) taekwondo athletes participated to this study. They performed taekwondo-specific agility test (TSAT) in two occasions (i.e., test-retest). Additionally, they performed jumping ability (i.e., squat jump, countermovement jump, standing long jump, and three-hop jump), sprint-time (5-m and 20-m dash), and dynamic balance (i.e., Y-test) tests along with a planned agility test (i.e., T-test). To establish TSAT’s construct validity, two subgroups were identified based on their international and national taekwondo results: top-elite (9 males and 2 females) and elite (11 males and 2 females). TSAT showed high relative and absolute reliability as well as a good ability to detect small and meaningful performance change. Top-elite athletes showed greater (p<0.001) TSAT performances (4.5±0.4 s) compared with their elite (5.3±0.4 s) counterparts. Receiving operating characteristic (ROC) analysis showed that TSAT was able to discriminate athletes of different competitive level as revealed by an area under the ROC curve of 0.94 (95% CI: 0.76-0.99). TSAT demonstrated significant association with the T-test (r = 0.71; shared-variance = 50%), which is considered as a gold-standard planned agility test. Additionally, results showed moderate to large associations between TSAT and jumping ability, sprint-time, and dynamic balance tests. The TSAT might be considered as a valid and reliable test to evaluate specific agility of taekwondo athletes.

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