Analysis of quadriceps muscle activation at different squat angles using maximum voluntary isometric contraction (MVIC): A pilot studyArif Pristianto, Alya Yuanita Ramadhanti, Rina Ainul Maghfiroh, Wulan Adis Maranti, Taufik Eko Susilo and Rita SetiyaningsihBIO Web Conf., 217 (2026) 01004DOI: https://doi.org/10.1051/bioconf/202621701004