Efektivitas Aplikasi CoachKu Berbasis Android terhadap Peningkatan Performa Fisik Seleksi Sekolah Kedinasan

Muhammad Ariansyah; Rahma Dewi; Nurkadri Nurkadri; Indra Kasih; Ardi Nusri

doi:10.24036/sporta.v10i2.586

Muhammad Ariansyah Pendidikan Olahraga, Universitas Negeri Medan
Rahma Dewi Pendidikan Olahraga, Universitas Negeri Medan
Nurkadri Nurkadri Pendidikan Olahraga, Universitas Negeri Medan
Indra Kasih Pendidikan Olahraga, Universitas Negeri Medan
Ardi Nusri Pendidikan Olahraga, Universitas Negeri Medan

DOI: https://doi.org/10.24036/sporta.v10i2.586

Keywords: android application, CoachKu, physical performance, civil service school selection, sport technology

Abstract

The selection process for Indonesian civil service schools demands high physical performance standards, yet structured and digitized physical coaching systems remain scarce. This study aimed to develop and examine the effectiveness of CoachKu, an Android-based application serving as a coach marketing platform and training support system for selection preparation. Adopting the Borg and Gall Research and Development model, the study involved 40 senior high school students as prospective selection candidates using a one-group pretest-posttest design. Instruments comprised student response questionnaires, physical performance pretests and posttests, and expert validity scales. Analytical techniques included paired sample t-test, normalized gain score (N-Gain), effect size (Cohen’s d), product-moment validity, and Cronbach’s Alpha reliability. Results revealed significant improvement between pre-test (M = 56.52; SD = 3.71) and posttest (M = 73.03; SD = 3.91) with t = 54.64, p < 0.001. The average N-Gain was 0.4024 (moderate category) and the effect size Cohen’s d = 4.25 (large category). All questionnaire items were valid (r > 0.312) with high reliability (α = 0.8745). Expert validation indicated product feasibility of 93.00% (very feasible). It is concluded that the CoachKu application is both practically and significantly effective in improving the physical performance of prospective civil service school selection candidates.

Downloads

Download data is not yet available.

References

Aisyah, D. N., & Sembiring, Z. (2025). Implementasi Tes Kesemaptaan Jasmani melalui Teknologi Computer Vision dan IoT terhadap Pembinaan TNI Polri pada Daerah Magelang. MASALIQ, 5(3), 1198–1212. https://doi.org/10.58578/masaliq.v5i3.5806
Bompa, T. O., & Buzzichelli, C. (2015). Periodization training for sports (3rd (ed.)). Human Kinetics.
Cornejo-Torres, C. M., Machaca-Huamanhorcco, E., Choquehuanca-Quispe, W., Salas Begazo, A. N., & Bernedo Malaga, V. W. (2024). Towards the development of motivation through gamification. https://doi.org/10.60692/tktbs-0nc77
Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (5th (ed.)). SAGE Publications.
Edmizal, E., Barlian, E., Donie, Komaini, A., Sinulingga, A., Padli, & Anizu. (2024). Development of sensor-based instruments to measure the accuracy of smash in badminton. Health Sport Rehabilitation. https://doi.org/10.58962/hsr.1310
Faiza, N. N., & Sembiring, Z. (2025). Optimalisasi Kesamaptaan Holistik untuk Kesiapan Fisik, Mental, dan Sosial dalam Seleksi dan Pelatihan Kedinasan untuk CPNS TNI dan Polri di Masyarakat Medan. Al-DYAS, 4(2), 1020–1032. https://doi.org/10.58578/aldyas.v4i2.5846
Faridah, E., Kasih, I., Nugroho, S., & Irfan, M. (2025). Digital transformation in physical education: The effectiveness of M-Gym mobile media in enhancing students’ rhythmic gymnastics competence. International Journal on Studies in Education, 8(1), 38–56. https://doi.org/10.46328/ijonse.5831
Field, A. (2018). Discovering statistics using IBM SPSS statistics (5th (ed.)). SAGE Publications.
Hidayah, N., Ahmad, A., & Parihin, P. (2025). Evaluation of the Validity of Student Interest Content in Learning Arabic Instruments Using the V Aiken Technique. Progressive of Cognitive and Ability, 4(3), 93–103. https://doi.org/10.56855/jpr.v4i3.1592
Ismail, R., Samah, A. A., Abidin, N. D. I. Z., Mohammad, N. H., Osman, A. K., Ghani, I. A., & Asbar, A. R. (2024). Development of physical training program to boost functional strength in firefighter recruits using a modified nominal group technique. Research Square. https://doi.org/10.21203/rs.3.rs-3831653/v1
Lakens, D. (2013). Calculating and reporting effect sizes to facilitate cumulative science: A practical primer for t-tests and ANOVAs. Frontiers in Psychology, 4, 863. https://doi.org/10.3389/fpsyg.2013.00863
Luria, E. (2022). Revisiting the Self-Determination Theory-Motivating the Unmotivated. Educational Practice and Theory, 44(2), 5–14. https://doi.org/10.7459/ept/44.2.02
Mayer, R. E. (2014). Cognitive Theory of Multimedia Learning. In The Cambridge Handbook of Multimedia Learning (pp. 43–71). Cambridge University Press. https://doi.org/10.1017/CBO9781139547369.005
Medicine, A. C. of S. (2022). ACSM’s guidelines for exercise testing and prescription (11th (ed.)). Wolters Kluwer.
Neldi, H., Handayani, G., Komaini, A., Mario, D. T., Nabawi, R. A., Arif, A. R. Z., Ayubi, N., Fernandez, J. G., & Hermanzoni, A. (2023). Journal of Physical Education and Sport. Journal of Physical Education and Sport, 23(12). https://doi.org/10.7752/jpes.2023.12391
Nuryadin, A., & Siswantoyo, S. (2021). Development of Harvard step test AN-515 based on digital integrated technology. MEDIKORA, 20(1), 10–22. https://doi.org/10.21831/medikora.v20i1.35285
Olivieri, J. J., Harris, D., Dietze, D. T., & Viereck, C. (2012). A Call for Calculating Effect Size in CME Educational Outcome Measurement. Journal of Continuing Education in the Health Professions, 6(2), 22–25. https://doi.org/10.1532/CEMEASURE.V6I2.113
Oosthuizen, D., & Hunter, J. (2023). The adoption of modern sports technologies from professional settings to everyday life. Administrative Sciences, 15(7), 249. https://doi.org/10.3390/admsci15070249
Paloma, F. G., Rio, L., & Anna, C. D. (2014). Physical self-efficacy in women ’ s artistic gymnastic between recreational and competitive level. 9(December 2013), 5–7. https://doi.org/10.14198/jhse.2014.9.Proc1.18
Paramitha, D. A., Zulistiani, Z., & Puspita, E. (2025). Acceptance of Digital Financial Applications by Students: A Qualitative Study Using the Technology Acceptance Model Approach. Sentralisasi, 15(1). https://doi.org/10.33506/sl.v15i1.5005
Plomp, T. (2013). Educational design research: An introduction. SLO.
Prayogo, R. T., Anugrah, S. M., Falaahudin, A., Iwandana, D. T., & Festiawan, R. (2021). Pengaruh latihan mandiri dalam rangka pembatasan kegiatan masyarakat: Studi kasus atlet pencak silat Kabupaten Karawang. Jurnal Keolahragaan, 9(2), 290–298. https://doi.org/10.21831/jk.v9i2.43260
Rihardi, S. A., & Yusliwidaka, A. (2020). Menakar sistem zonasi penerimaan siswa baru di era desentralisasi pendidikan. VOX EDUKASI Jurnal Ilmiah Ilmu Pendidikan, 11(1), 1–13. https://doi.org/10.31932/ve.v11i1.540
Saldana, D. J. M. (2025). Desarrollo de sistema de gestion de entrenamientos personalizados en gimnasios: Desarrollo de aplicativo movil [Repositorio Digital EPN]. http://bibdigital.epn.edu.ec/handle/15000/26432
Staunton, C. (2023). Training software and athlete monitoring in elite sport. Sports Medicine, 53(Suppl 1), 45–52. https://doi.org/10.1007/s40279-023-01890-3
Wang, F., & Hannafin, M. J. (2005). Design-based research and technology-enhanced learning environments. Educational Technology Research and Development, 53(4), 5–23. https://doi.org/10.1007/BF02504682
Warschauer, M., & Tate, T. (2018). Digital divides and social inclusion. Information and Learning Sciences, 119(5/6), 369–377. https://doi.org/10.1108/ILS-11-2017-0111
Yudanto, D., & Soeling, P. D. (2023). Strategy of recruitment and selection for Indonesian National Police (POLRI) candidates. Khazanah Sosial, 5(1), 12–27. https://doi.org/10.15575/ks.v5i1.20964