Instructions
With a resistance band or tube placed around your legs just above your knees, stand with your feet shoulder-width apart while keeping your chest up and your abdominals braced.
Slightly bend at the knees and lift your chosen leg out to the side; it should be reasonably straight.
Continue to lift until your foot reaches 1 to 2 feet off the ground.
Lower your leg back to the starting position and repeat for the other side!