Jumping Jack

At Westside box jumps are a key portion of development for athletes as they build explosive power from a multitude of positions.

These are ALWAYS weighted in some fashion:
-holding kbs
-holding dbs
-weight vest
-banded resistance -bar in the front rack
-bar overhead -back racked bar
They can be running starts,
Single step,
Or still standing.
From both feet,
Off one foot,
From the knees.

But ALWAYS 80 total jumps per week split across 2 days(40 each day), typically in the evening training session.