“If at first you don’t succeed, try, try, try again” – Anonymous
Using straight punches (left hand followed by right hand) hit the heavy bag as hard and as fast as you can continuously for 20 seconds, rest for 10 seconds between sets. Complete 8 sets.
If you don’t have use of a heavy bag do air punches.
Complete as many box jumps as you can in 20 seconds rest for 10 seconds between sets. Complete 8 sets.