Pengaruh Latihan Weight Vest Dengan Beban 8% Dari Berat Badan Terhadap Tingkat Kekuatan Otot Tungkai Pada Pemain Sepakbola Amatir
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Abstract
Penelitian ini dilatarbelakangi oleh pentingnya kekuatan otot tungkai dalam menunjang performa eksplosif pemain sepak bola, sementara pemain amatir seringkali memiliki tingkat kekuatan yang belum optimal. Penelitian ini bertujuan untuk menganalisis pengaruh latihan weight vest dengan beban 8% dari berat badan terhadap tingkat kekuatan otot tungkai pada pemain sepak bola amatir. Metode yang digunakan adalah pre-experimental dengan desain one group pretest–posttest. Sampel penelitian terdiri dari 17 pemain sepak bola mahasiswa (usia rata-rata 19,63 ± 0,81 tahun) yang dipilih menggunakan rumus Slovin. Program latihan dilakukan selama tiga minggu dengan frekuensi empat kali per minggu, mencakup aktivitas sprint dan akselerasi menggunakan rompi beban secara terstruktur. Instrumen pengukuran yang digunakan adalah tes One Repetition Maximum (1RM) leg curl kanan dan kiri untuk mengukur kapasitas maksimal otot hamstring. Analisis data dilakukan menggunakan uji Paired Sample t-Test dan Wilcoxon Signed Ranks Test pada taraf signifikansi α = 0,05. Hasil penelitian menunjukkan adanya peningkatan signifikan setelah perlakuan, yaitu leg curl right sebesar 13,06 leg curl left sebesar 14,19. Hasil uji Paired Sample t-Test menunjukkan nilai signifikansi p = 0,000 (< 0,05) pada seluruh variabel. Dengan demikian, latihan weight vest dengan beban 8% dari berat badan terbukti efektif dalam meningkatkan kekuatan otot tungkai bawah pada pemain sepak bola amatir. Dapat disimpulkan bahwa intervensi latihan weight vest dengan beban 8% dari berat badan efektif dalam meningkatkan kekuatan otot tungkai bawah pemain sepak bola amatir secara signifikan.
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