Twist Hands for Extra Power
Arm action accounts for 30% of jumping power. Most of this comes from the lats. In watching NFL combiners run, I noticed in their starts and throughout the first phases of acceleration, they twisted their palms up and out away from them. In trying it, I found it gets at those lats much more efficiently.
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| photo credit: bleacherreport.net |
When applying this technique to box jumps, I noticed I much more readily flap my arms in circles like a bird, accentuating my air time. Note the arm (not hand) action on this:
video credit: ericcressey.com
Here are some pics breaking the movement down:
Rear View
long body and arms quarter squat position, arms back
palms facing each other palms up, thumbs rotated out
Side View
Give this quirk a try and see if it gives you the same power boost.