11:44
Do this to build big pectoral muscles [Dubbing commentary]
20:29
[Explanation] Lat pulldown targeting the lower back
22:11
"Change your shoulders" with just dumbbells! Introducing 4 basic exercises for beginners and home...
35:43
筋トレをして筋肉がつくのにかかる時間は？知らずに諦めないで！
18:33