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PENGARUH LATIHAN PLYOMETRIC TERHADAP KECEPATAN TENDANGAN MAWASHI GERI Kadir, Suprianto; Duhe, Edy Dharma Putra; Irawan, Safri; Haryani, Meri; Suardika, I Kadek; Aalang, Christin Gloria
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 No. 02, Juni 2026 Produce
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.58948

Abstract

This study aimed to determine the effect of resistance band training on the speed of the *gyaku tsuki* punch among students of the Sports Coaching Education Study Program at Gorontalo State University (UNG). The study employed a quantitative approach using an experimental method and a one-group pretest-posttest design. The sample consisted of 30 students (19 male and 11 female), selected using a total sampling technique. Data collection involved a 30-second *gyaku tsuki* punch speed test. The intervention consisted of resistance band training administered over four weeks with a frequency of three sessions per week. Data were analyzed using descriptive statistics, the Shapiro-Wilk normality test, and a paired-sample t-test at a significance level of 0.05. The results showed a mean pretest score of 57.07 punches/30 seconds and a mean posttest score of 65.80 punches/30 seconds, representing an increase of 8.73 punches or 15.30%. The paired-sample t-test yielded a significance value of 0.000 (p < 0.05). Thus, resistance band training had a significant effect on improving *gyaku tsuki* punch speed among UNG Sports Coaching Education students. These findings indicate that resistance bands offer a practical, economical, and relevant training alternative for karate instruction in a university setting, allowing for systematic and measurable progress.
PENINGKATAN VO₂MAX MAHASISWA CABANG OLAHRAGA TINJU MELALUI KOMBINASI LATIHAN DOUBLE SKIPPING DAN BOX JUMP Duhe, Edy Dharma Putra; Haryani, Meri; Irawan, Safri; Nurkhoiroh; Haryanto, Arief Ibnu; Suardika, I Kadek; Mamonto, Nurwitria
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 No. 02, Juni 2026 Produce
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.58950

Abstract

This study aimed to determine the increase in VO₂Max in boxing students through a combination of double skipping and box jump training. The study used a quantitative approach with a quasi-experimental method and a one-group pretest-posttest design. The study subjects were 15 boxing students specializing in the Sports Coaching Education Study Program, consisting of 9 males and 6 females, aged 18–22. Treatment consisted of a combination of double skipping and box jump training for 6 weeks, performed 3 times per week. VO₂Max was measured using the Multistage Fitness Test/Bleep Test before and after treatment. Data were analyzed using descriptive statistics, the Shapiro-Wilk normality test, the Wilcoxon signed-rank test, percentage increase, and effect size. The results showed an average increase in VO₂Max from 36.47 to 39.60 mL/kg/min, representing an increase of 3.13 mL/kg/min, or 8.61%. The Wilcoxon test showed a significant difference with p < 0.001 and an effect size of 0.88. Thus, the combination of double skipping and box jump training effectively increased boxing students' VO₂Max.
Arm muscle power, eye-hand coordination, and psychological distress predict jab-straight punch frequency Edy Dharma Putra Duhe; I Kadek Suardika; Suprianto Kadir; Meri Haryani; Safri Irawan
Jurnal SPORTIF : Jurnal Penelitian Pembelajaran Vol 12 No 2 (2026): Jurnal SPORTIF: Jurnal Penelitian Pembelajaran
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/js_unpgri.v12i2.28773

Abstract

Jab-straight punch frequency is an important indicator of repeated punching performance in boxing and may be associated with physical, coordinative, and psychological characteristics. This study examined associations between arm muscle power, eye-hand coordination, and GHQ-12 psychological distress scores and jab-straight punch frequency among boxing athletes registered under PERTINA Gorontalo Province. A quantitative cross-sectional correlational design with multiple linear regression analysis was used. All 15 eligible athletes were included through total sampling; therefore, the findings apply only to this study sample. Arm muscle power, eye-hand coordination, and psychological distress scores were assessed using the Seated Medicine Ball Throw, Wall Toss Test, and General Health Questionnaire-12, respectively. Jab-straight punch frequency was defined as the number of valid punches completed within 30 seconds. The regression model was statistically significant, F(3, 11) = 108.799, p < .001, R² = .967, and adjusted R² = .959. Eye-hand coordination showed a positive regression coefficient (B = 1.616, p < .001), whereas arm muscle power (B = −3.155, p = .043) and psychological distress scores (B = −0.216, p < .001) showed negative coefficients. Higher psychological distress scores were associated with lower jab-straight punch frequency. These findings may provide preliminary information for evaluating the measured variables within this sample. Future studies with larger, more diverse samples and specific biomechanical tools are needed to further examine these associations.