Pengaruh Latihan Weightlifting Terhadap Penurunan Persentase Lemak Tubuh Pada Member Gym Di Red Fitness Tambun
(The Effect of Weightlifting Training on Body Fat Percentage Reduction among Gym Members at Red Fitness Tambun)
DOI:
https://doi.org/10.31004/jh.v6i5.3116Abstract
Persentase lemak tubuh yang tinggi masih banyak ditemukan pada member pusat kebugaran yang rutin berlatih, salah satunya karena program latihan yang terlalu bertumpu pada kardio. Penelitian ini bertujuan mengetahui pengaruh latihan weightlifting terhadap penurunan persentase lemak tubuh pada member wanita Red Fitness Tambun. Desain yang digunakan adalah pra-eksperimental one group pretest-posttest dengan 15 member wanita berusia 20–35 tahun yang dipilih melalui purposive sampling. Program berlangsung 16 pertemuan dengan rotasi chest, back, shoulder, dan leg, intensitas naik bertahap dari 55% sampai 70% 1RM, volume 3 set × 8–12 repetisi, dan latihan core sebagai finisher. Komposisi tubuh diukur dengan ACCUNIQ BC380 sebelum dan sesudah program, kemudian dianalisis dengan paired sample t-test pada taraf 0,05. Rata-rata persentase lemak tubuh turun dari 34,47% menjadi 30,67% (selisih 3,80 poin persentase; t(14) = 21,77; p < 0,001), sedangkan rata-rata massa lemak turun dari 23,67 kg menjadi 20,07 kg. Latihan weightlifting progresif berbasis 1RM berpengaruh terhadap penurunan persentase lemak tubuh pada kelompok ini. Karena tidak ada kelompok kontrol dan asupan makan tidak sepenuhnya terkendali, temuan ini perlu dibaca sebagai bukti awal.
Kata Kunci: weightlifting, persentase lemak tubuh, latihan beban, 1RM, komposisi tubuh
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Copyright (c) 2026 Adam wisnu Fadhilah, Muhammad Arief Setiawan, Deden Akbar Izzuddin

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