Please perform this exercise at the suggested tempo, without rushing ahead.
This exercise is designed to specifically work your arm muscles, as it works your biceps, triceps and shoulders. On top of that, "up up down down" improves your stability as you lean from one arm on another. Good luck and let's begin!!
Roberta's Gym is all about helping you get fit and have a toned with simple and fun body-weight exercises. Please let me know in the comments below how this video exercise helps you! Thanks!