PENINGKATAN MASSA OTOT MELALUI RESISTANCE TRAINING: STUDI EKSPERIMEN ENAM MINGGU PADA ATLET KARATE JUNIOR
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Abstract
Strength development in junior karate athletes is an important aspect because it plays a direct role in supporting performance, both during training and in competitions. However, the applied training pattern is often lacking in variety and is not optimally structured. This study aims to examine the effect of a six-week resistance training program on increasing muscle mass in junior karate athletes. The method used was an experiment with a one-group pretest-posttest design, involving 15 athletes consisting of 8 boys and 7 girls aged 13–15 years. The treatment in the form of resistance training was carried out twice a week, with a training program that included two upper body movements (bench press and upper back row) and two lower body movements (squat and leg extension). The load used was more than 15 RM with a movement tempo of 2–8 seconds. Muscle mass measurements were taken before and after the intervention using the Karada Scan Omron HBF-701, then analyzed through a t-test with the help of SPSS Version 29. The results showed a significant increase in muscle mass of 9% after undergoing resistance training. These findings indicate that a systematically designed resistance training program can help junior karate athletes in increasing strength and speed. Thus, coaches are advised to integrate resistance training into their coaching programs to support the achievement of optimal performance.
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References
Aldapit, E. (2019). Efektifitas Latihan Berdasarkan Proses Latihan Pada Fitness Center Dan Pada Klub Olahraga. Jurnal Muara Olahraga Vol, 1(2).
Arovah, N. I. (2021). Olahraga Terapi Rehabilitasi pada Gangguan Musculoskeletal. UNY Press.
Atiq, A., Henjilito, R., Syafii, I., Putro, R. A., Alfian, M., Alamsyah, R., & Pahliwandari, R. (2022). Strategi dan Pola Latihan Fisik Atlet Pemula. Pustaka Rumah Aloy.
Atqiya, Q., & Pratama, R. S. (2024). Pelaksanaan Kegiatan Senam dalam Menstimulasi Perkembangan Fisik Motorik Anak Usia Dini. Keguru: Jurnal Ilmu Pendidikan Dasar, 8(2), 11–20.
Baroni, B. M., Pinto, R. S., Herzog, W., & Vaz, M. A. (2015). Eccentric resistance training of the knee extensor muscle: training programs and neuromuscular adaptations. Isokinetics and Exercise Science, 23(3), 183–198.
Bompa, T., & Buzzichelli, C. A. (2019). Periodization: Theory and Methodology of Training. Human Kinetics.
Burnie, L., Barratt, P., Davids, K., Stone, J., Worsfold, P., & Wheat, J. (2018). Coaches’ philosophies on the transfer of strength training to elite sports performance. International Journal of Sports Science & Coaching, 13(5), 729–736.
Drew, M. K., Cook, J., & Finch, C. F. (2016). Sports-related workload and injury risk: simply knowing the risks will not prevent injuries: narrative review. British Journal of Sports Medicine, 50(21), 1306–1308.
Faigenbaum, A. D., & Myer, G. D. (2010). Resistance training among young athletes: Safety, efficacy and injury prevention effects. British Journal of Sports Medicine, 44(1), 56–63. https://doi.org/10.1136/bjsm.2009.068098
Fareza, A. (2024). Pengaruh Latihan Target Tetap Dan Bergerak Terhadap Ketepatan Pukulan Gyaku-Tsuki Pada Atlet Sma Bina Utama Pontianak. IKIP PGRI Pontianak.
Fitri, A., Arsil, A., Bakhtiar, S., & Sasmitha, W. (2023). Kontribusi Daya Ledak Otot Lengan dan Koordinasi Mata-Tangan terhadap Pukulan (Tsuki) Atlet Shorinji Kempo. Jurnal JPDO, 6(10), 190–198.
Fraenkel, J. R., Wallen, N. E., & Hyun, H. H. (2022). How to Design and Evaluate Research in Education (Eleventh). McGraw Hill LLC. https://www.mheducation.com/highered/product/How-to-Design-and-Evaluate-Research-in-Education-Fraenkel.html
Granacher, U., Lesinski, M., Büsch, D., Muehlbauer, T., Prieske, O., Puta, C., Gollhofer, A., & Behm, D. G. (2016). Effects of resistance training in youth athletes on muscular fitness and athletic performance: a conceptual model for long-term athlete development. Frontiers in Physiology, 7, 164.
Halson, S. L. (2014). Monitoring training load to understand fatigue in athletes. Sports Medicine, 44(Suppl 2), 139–147.
Hasyim, H. (2024). Strategi Pembinaan Dan Peningkatan Prestasi Olahraga. Perpustakaan UNM.
Hudain, M., Saleh, M., Adil, A., & Badaru, B. (2024). Analisis Indeks Massa Tubuh, Daya Ledak Lengan, Dan Kecepatan Reaksi Tangan Terhadap Hasil Pukulan Chudan Tsuki Pada Karate-Ka Inkanas Di Smp Negeri 31 Makassar. Jurnal Review Pendidikan Dan Pengajaran, 7(1), 2691–2698.
Iriani, S. Z. A., & Salman, S. (2024). Menggali potensi senam dan ritmik dalam pengembangan keterampilan motorik. Pubmedia Jurnal Pendidikan Olahraga, 1(4), 10.
Korakakis, P. A., Wolf, M., Coleman, M., Burke, R., Piñero, A., Nippard, J., & Schoenfeld, B. J. (2024). Optimizing Resistance Training Technique to Maximize Muscle Hypertrophy: A Narrative Review. Journal of Functional Morphology and Kinesiology, 9(1). https://doi.org/10.3390/jfmk9010009
Lopez, P., Radaelli, R., Taaffe, D. R., Newton, R. U., Galvão, D. A., Trajano, G. S., Teodoro, J. L., Kraemer, W. J., Häkkinen, K., & Pinto, R. S. (2021). Resistance Training Load Effects on Muscle Hypertrophy and Strength Gain: Systematic Review and Network Meta-analysis. Medicine and Science in Sports and Exercise, 53(6), 1206–1216. https://doi.org/10.1249/MSS.0000000000002585
McQuilliam, S. J., Clark, D. R., Erskine, R. M., & Brownlee, T. E. (2020). Free-weight resistance training in youth athletes: a narrative review. Sports Medicine, 50(9), 1567–1580.
Myers, A. M., Beam, N. W., & Fakhoury, J. D. (2017). Resistance training for children and adolescents. Translational Pediatrics, 6(3), 137.
Novian, G., & Noors, I. P. M. (2020). Hubungan Gaya Kepemimpinan Pelatih dengan Prestasi Atlet Taekwondo. Gladi?: Jurnal Ilmu Keolahragaan, 11(02), 151–164. https://doi.org/10.21009/gjik.112.07
Rusdiawan, A., Ristanto, K. O., & Kafrawi, F. R. (2024). Dasar-Dasar Latihan Kekuatan. Uwais Inspirasi Indonesia.
Saharullah, S. (2020). Dasar-Dasar Ilmu Kepelatihan.
Singh, A., Dangat, D. P., Shenoy, S., & Sandhu, J. S. (2023). Body composition analysis using karadascan in indian collegiate population: An observational study. Medical Journal of Dr. D.Y.
Patil Vidyapeeth, 16(3), 364–366. https://doi.org/10.4103/mjdrdypu.mjdrdypu_704_20
Stricker, P. R., Faigenbaum, A. D., McCambridge, T. M., Fitness, C. on S. M. and, LaBella, C. R.,
Brooks, M. A., Canty, G., Diamond, A. B., Hennrikus, W., & Logan, K. (2020). Resistance training for children and adolescents. Pediatrics, 145(6), e20201011.
Suchomel, T. J., Nimphius, S., Bellon, C. R., Hornsby, W. G., & Stone, M. H. (2021). Training for muscular strength: Methods for monitoring and adjusting training intensity. Sports Medicine, 51(10), 2051–2066.
Tieland, M., Trouwborst, I., & Clark, B. C. (2018). Skeletal muscle performance and ageing. Journal of Cachexia, Sarcopenia and Muscle, 9(1), 3–19.
Wernbom, M., & Aagaard, P. (2020). Muscle fibre activation and fatigue with low?load blood flow restricted resistance exercise—an integrative physiology review. Acta Physiologica, 228(1), e13302.
Wiguna, I. B. (2023). Teori dan aplikasi latihan kondisi fisik. PT. RajaGrafindo Persada-Rajawali Pers.
Windt, J., & Gabbett, T. J. (2017). How do training and competition workloads relate to injury? The workload—injury aetiology model. British Journal of Sports Medicine, 51(5), 428–435.