http://journals.insightpub.org/index.php/hsrj/issue/feed 2026-05-10T12:56:37+00:00 Sulaiman editorhsrj1@gmail.com Open Journal Systems http://journals.insightpub.org/index.php/hsrj/article/view/534 2026-05-10T12:56:37+00:00 Lidya Theresya Br.Sembiring lidyathereresia007@gmail.com Maryaningsih maryaningsih@gmail.com Sulaiman manfisioterapi@gmail.com

<p><strong><em>Background:</em></strong><em> Kick speed is an important component of taekwondo performance, particularly in the execution of dollyo chagi, a kicking technique frequently used in competition. This study aimed to analyze the effect of ankle weight training on improving dollyo chagi kick speed among taekwondo athletes at Sibayak Club Medan. A quasi-experimental design with a one-group pre-test and post-test approach was employed. The sample consisted of 30 taekwondo athletes aged 15–22 years selected using total sampling. The intervention involved ankle weight training conducted twice a week for four weeks. Kick speed was measured using a stopwatch before and after the intervention. The results showed a descriptive improvement in kick speed after ankle weight training. Before the intervention, 27 athletes were categorized as moderate and 3 athletes as poor. After the intervention, all athletes were categorized as very good. The mean kick time also decreased from approximately 4.70 seconds in the pre-test to approximately 3.06 seconds in the post-test. These findings indicate that ankle weight training may serve as a practical training variation to improve dollyo chagi kick speed. However, conclusions regarding statistical significance should be confirmed using the complete inferential statistical output</em><em>.</em></p>

2026-05-10T00:00:00+00:00 Copyright (c) 2026 Health Science and Rehabilitation Journal http://journals.insightpub.org/index.php/hsrj/article/view/530 2026-04-28T10:18:23+00:00 Josua Sahat Airye Lubis josualubis26@gmail.com Raden Eko Legstyanto radenekolegstyanto@gmail.com Sulaiman manfisioterapi@gmail.com

<p><em>Background: Leg muscle strength is an important element in soccer performance (kicking, sprinting, jumping). However, the majority of players at SSB Utamasia Football Academy have not implemented FIFA 11+ training, even though this program has been proven effective in improving physical performance while reducing injuries. Objective: To test the effect of FIFA 11+ training on leg muscle strength improvement. Methods: This study used a pre-test and post-test design on 25 core players. The FIFA 11+ training intervention was conducted for four weeks (3 times/week). Leg muscle strength was measured using the Vertical Jump Test. Data were analyzed using a paired t-test. Results: There was a significant increase in leg muscle strength. The average vertical jump increased from 37.20 cm (pre-test) to 47.84 cm (post-test). The paired t-test results showed a significance value of p = 0.000. Conclusion: FIFA 11+ training was proven to be significantly effective in increasing leg muscle strength in players at the Utamasia Football Academy SSB.</em></p>

2026-04-28T00:00:00+00:00 Copyright (c) 2026 Health Science and Rehabilitation Journal