1 Jump on plyo box/ 1 clean pull-up
2 Jumps on plyo box/ 2 clean pull-ups
3 Jumps on plyo box/3 clean pull-ups...
n Jumps on plyo box/ n clean pull-ups
You've got 20 minutes to carry this sequence as far as you can.
The pull-ups need not be within a single set to count. Just alternate
between jumping and pull-ups. Complete the needed number of
pull-ups before the next round of jumps. Pick a challenging height
for the box jump. No jumping on pull-ups.
"In athletics, success is a product of many different factors,
not many different supplements."
- Jamie LaBelle
Bench Press variants by Doug Daniels:
http://www.cyberpump.com/trainhard/benchvariants.html