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PERBANDINGAN DAYA TAHAN KARDIOVASKULER SEBELUM DAN SESUDAH MENGIKUTI PROGRAM LATIHAN AEROBIK Fatoni; Didi Yudha Pranata; Rachmi Marsheilla Aguss; Andi Saiful Alimsyah; Mohammad Dika Raswadi
Sains Olahraga : Jurnal Ilmiah Ilmu Keolahragaan Vol. 9 No. 1: April 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/so.v9i1.65453

Abstract

Latihan aerobik merupakan salah satu bentuk aktivitas fisik yang terbukti memberikan manfaat signifikan bagi kesehatan kardiovaskuler. Mahasiswa Pendidikan Jasmani Kesehatan dan Rekreasi tetap harus memiliki kebugaran jasmani serta pola hidup yang baik karena tuntungan akademik, untuk itu membutuhkan intervensi berbasis olahraga untuk meningkatkan daya tahan kardiovaskuler. Penelitian ini bertujuan untuk menganalisis perubahan parameter daya tahan kardiovaskuler sebelum dan sesudah program latihan aerobik selama tiga bulan pada 50 mahasiswa. Metode penelitian yang digunakan adalah eksperimen dengan desain pretest-posttest. Subjek mengikuti program latihan aerobik intensitas sedang hingga tinggi sebanyak tiga kali seminggu selama 12 minggu. Parameter yang diukur meliputi denyut jantung istirahat, tekanan darah sistolik dan diastolik, serta VO₂ max, yang dianalisis menggunakan uji paired t-test untuk melihat perubahan signifikan sebelum dan sesudah intervensi. Hasil penelitian menunjukkan adanya penurunan signifikan pada denyut jantung istirahat (78,4 ± 5,2 menjadi 70,6 ± 4,8 dpm, p < 0,001), tekanan darah sistolik (128,6 ± 7,4 menjadi 121,3 ± 6,8 mmHg, p < 0,001), dan tekanan darah diastolik (82,1 ± 5,6 menjadi 76,8 ± 5,2 mmHg, p < 0,001). Selain itu, kapasitas aerobik yang diukur melalui VO₂ max mengalami peningkatan signifikan (34,2 ± 4,1 menjadi 40,7 ± 4,5 mL/kg/menit, p < 0,001). Perubahan ini mencerminkan adaptasi fisiologis berupa peningkatan efisiensi kardiovaskuler dan kapasitas aerobik, yang mendukung pentingnya latihan aerobik intensitas sedang hingga tinggi dalam meningkatkan kesehatan jantung dan kebugaran jasmani.
Health-Related Fitness Profiles and Physical Activity Behavior in Elementary School Students Fatoni; Juhanis Juhanis; Iskandar Iskandar; Mohammad Dika Raswadi
SPORTIVE: Journal Of Physical Education, Sport and Recreation Vol. 10 No. 1 (2026): 30 Maret 2026
Publisher : Prodi Pendidikan Jasmani dan Olahraga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jece0565

Abstract

Fitness and health are important indicators in supporting the growth and development of elementary school students. However, increasing sedentary lifestyles may negatively affect children’s physical activity and fitness levels. This study aimed to analyze the profile of health-related physical fitness and examine the relationship between physical activity behavior and fitness components among elementary school students. A descriptive-analytical method with a cross-sectional design was employed, involving 43 students from SD Inpres Karunrung. Physical fitness was assessed using a battery of tests measuring cardiorespiratory fitness, muscular strength and endurance, flexibility, and body composition, while physical activity behavior was measured using a physical activity questionnaire. Data were analyzed descriptively and correlationally using the Spearman rho test with SPSS version 25. The results showed that most students were classified in the moderate category across nearly all physical fitness components. A positive and significant relationship was found between physical activity and cardiorespiratory fitness (r = 0.462; p < 0.05) as well as muscular strength and endurance (r = 0.398; p < 0.05). No significant relationship was observed with flexibility and body composition. In conclusion, physical activity plays an important role in supporting health-related physical fitness, particularly functional fitness components, in elementary school students.