The Proper Technique for a Sit-Up: 3D Animation of Muscles in Motion
69 بار بازدید -
7 سال پیش
-
Learn the proper technique for
Learn the proper technique for a sit-up by going underneath the skin and seeing anatomy in action.
7 سال پیش
در تاریخ 1396/11/06 منتشر شده
است.
69
بـار بازدید شده