First stand along the edge of the pool. Step on the noodle with your far leg (far from the edge). Hold the edge of the pool with one arm and keep it straight. Makes sure your back is straight as well.
Start by moving your far leg to the side away from your body. This should be easy because the noodle is pushing your leg toward the surface therefore you won’t be using any muscles in this move. Then bring your leg back to the starting position. Here you will work against the resistance created by the noodle. Repeat 3 times for at least 2 minutes with each leg.
Inhale when you open. Exhale when you close.
Feel your inner thigh as you close your leg.