ONE-MINUTE JUMP LUNGE
Stand tall with your feet parallel. Step your left foot back behind you and bend your knees to make two 90-degree angles with either leg. The right knee should be on top of the ankle, and left knee under your hip. Next, jump in the air, switching your forward foot before landing. To make this easier, walk your legs to alternate. Whether you do a basic lunge or a jump lunge, you can level up by adding a weight (think ball, water bottle, etc.).