19:59
You won't grow if you just think you're doing it! Three characteristics of people whose backs don...
20:15
背中の分厚さのポイントは"T"！背中トレの必須種目 3選！
19:55
[Paid] A must-see for those with weak backs and waists! The effective back training by Mochida, t...
10:20
Leg press form explained! This is the form that doesn't put strain on your knees or hips!
15:06