weight: 76.2kg & BMI: 18.0% 核心肌群訓練(core exercise) Core Stability for Marathon running https://www.youtube.com/watch?v=6fBsFDP09TU How to Plank https://www.youtube.com/watch?v=TvxNkmjdhMM The10 Best Exercises to Lose Weight https://www.youtube.com/watch?v=wL0CJXDriOI 4 weeks Six Pack Abs workout - Level https://www.youtube.com/watch?v=c140_bqmfF0