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- ABegin in a lunge with left leg forward, arms bent by sides, hands in fists.
- BQuickly extend legs and rise up onto balls of feet as arms extend overhead, fingertips reaching to ceiling. Immediately return to start and repeat as quickly as possible for 45 seconds. Repeat on opposite side. Tip:This move should feel like a lunge jump without leaving the floor. Make your movement quick and explosive, but instead of jumping up, just lift the heels off the floor.