Pengaruh Tingkat Aktivitas Fisik Harian terhadap Profil Kebugaran Kardiorespirasi dan Kekuatan Otot pada Mahasiswa
Keywords:
aktivitas fisik, kebugaran kardiorespirasi, kekuatan otot, mahasiswa, VO₂maxAbstract
Aktivitas fisik mahasiswa yang cenderung menurun akibat gaya hidup sedenter dapat berdampak pada kebugaran kardiorespirasi dan kekuatan otot. Penelitian ini bertujuan menganalisis pengaruh tingkat aktivitas fisik harian terhadap profil kebugaran kardiorespirasi dan kekuatan otot pada mahasiswa. Penelitian menggunakan desain cross-sectional dengan melibatkan 120 mahasiswa berusia 18-24 tahun yang dipilih melalui purposive sampling. Tingkat aktivitas fisik diukur menggunakan International Physical Activity Questionnaire, kebugaran kardiorespirasi diukur dengan tes VO?max menggunakan metode bleep test, dan kekuatan otot diukur melalui hand grip strength test dan sit-up test. Data dianalisis menggunakan uji korelasi Pearson dan regresi linear berganda. Hasil penelitian menunjukkan terdapat hubungan positif signifikan antara tingkat aktivitas fisik dengan VO?max (r=0,687; p<0,001), hand grip strength (r=0,542; p<0,001), dan performa sit-up (r=0,613; p<0,001). Mahasiswa dengan aktivitas fisik tinggi memiliki VO?max 28,3% lebih tinggi dibandingkan kelompok aktivitas rendah. Tingkat aktivitas fisik memberikan kontribusi sebesar 47,2% terhadap variasi kebugaran kardiorespirasi. Kesimpulannya, tingkat aktivitas fisik harian berpengaruh signifikan terhadap profil kebugaran kardiorespirasi dan kekuatan otot mahasiswa.
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