Volume 12, Issue 4 (2-2027)
J Sport Biomech 2027, 12(4): 882-918 |
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Shah S, Motimath B, Dhaval D. Correlation Between Core Muscle Endurance and Dual-Task Performance Among Competitive Karate Kata Athletes: An Analytical Study. , J Sport Biomech. 2027; 12 (4) :882-918
URL: http://biomechanics.iauh.ac.ir/article-1-563-en.html
URL: http://biomechanics.iauh.ac.ir/article-1-563-en.html
1- Department of Sports Physiotherapy, KLE Institute of Physiotherapy, Nehru Nagar, Belagavi 590010, Karnataka, India.
Abstract: (32 Views)
Objective Kata is contested in arenas saturated with visual and auditory distractions that competitors must filter while holding precise postures. This study examined whether core endurance is related to dual-task performance during Taikyoku Shodan.
Methods This cross-sectional study included 108 competitive kata athletes (55 men, 53 women; aged 15–32 years). Core endurance was assessed using four McGill trunk endurance tests. Athletes performed Taikyoku Shodan under single-task, auditory, and visual Stroop dual-task conditions. Movement quality was scored using a seven-item scale (0–21), with good scoring agreement (ICC = 0.84–0.89). Dual-task cost was calculated as the proportional reduction in movement quality.
Results Movement quality was highest without a concurrent task (17.24 ± 2.25) and fell under auditory (14.68 ± 2.44) and visual (13.71 ± 2.46) loading (both p < 0.001). Overall dual-task cost averaged 17.56 ± 8.75%. Composite endurance (234.4 ± 38.7 s) was inversely correlated with overall cost (r = −0.413, 95% CI −0.558 to −0.243, p < 0.001). In an adjusted model, endurance (β = −0.419) and baseline Stroop performance (β = −0.251) were independent correlates. The association persisted with independent ratings (r = −0.327, p < 0.001).
Conclusion Athletes with lower trunk endurance lost proportionally more kata movement quality under concurrent cognitive load. The cross-sectional design, convenience sample, an unvalidated instrument, and non-blinded scoring preclude causal inference, and the findings should be regarded as hypothesis-generating.
Methods This cross-sectional study included 108 competitive kata athletes (55 men, 53 women; aged 15–32 years). Core endurance was assessed using four McGill trunk endurance tests. Athletes performed Taikyoku Shodan under single-task, auditory, and visual Stroop dual-task conditions. Movement quality was scored using a seven-item scale (0–21), with good scoring agreement (ICC = 0.84–0.89). Dual-task cost was calculated as the proportional reduction in movement quality.
Results Movement quality was highest without a concurrent task (17.24 ± 2.25) and fell under auditory (14.68 ± 2.44) and visual (13.71 ± 2.46) loading (both p < 0.001). Overall dual-task cost averaged 17.56 ± 8.75%. Composite endurance (234.4 ± 38.7 s) was inversely correlated with overall cost (r = −0.413, 95% CI −0.558 to −0.243, p < 0.001). In an adjusted model, endurance (β = −0.419) and baseline Stroop performance (β = −0.251) were independent correlates. The association persisted with independent ratings (r = −0.327, p < 0.001).
Conclusion Athletes with lower trunk endurance lost proportionally more kata movement quality under concurrent cognitive load. The cross-sectional design, convenience sample, an unvalidated instrument, and non-blinded scoring preclude causal inference, and the findings should be regarded as hypothesis-generating.
Keywords: Martial arts, Physical endurance, Postural balance, Cognition, Task performance and analysis, Athletic performance
Type of Study: Research |
Subject:
General
Received: 2026/08/19 | Accepted: 2026/11/5 | Published: 2026/11/15
Received: 2026/08/19 | Accepted: 2026/11/5 | Published: 2026/11/15
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