Begin by doing five jumps from a box about 20-inches high and landing in a hit position.
Next, do five more jumps in the same manner, but this time recoil straight up as
quickly as possible. On the next series, jump from one box, to the floor to the next
box for five reps. Now you are ready to get after it.
You should set up three to five 20-inch boxes about three feet apart. Follow the
same procedure but jump continuously through all three to five boxes for two sets.
Do it as fast as possible. The last drill is to jump over the boxes as fast as possible
for two sets. As you become more advanced, you can raise the height of the last box
up to 36 to 40 inches for the last two drills. You may wish to time these last two drills