4. Speed bag both arms 

Arms-tiff-Speedbag.png

Get ready to burn out your arms and roll with the punches! The challenge is to keep your elbows nice and high. 

» Stand facing the corner, light on your feet, fists above your head – whatever you do, don’t let those elbows sink.

» Start rolling your hands over each other, pushing through your imaginary speedball with the top hand – pow, pow, POW!

» Now for the other side (gotta keep it even!).

NEXT: Uppercuts non-stop