Fast Fitness - Better Back and Backside Muscles

Here is Friday Fast Fitness - Quickly strengthen lower back and backside muscles, improve balance, stretch your legs, and learn straighter positioning:

1. Stand on one foot.
2. Lift the other leg in back. Bend only at the hip until your entire body is parallel to the floor (like the top bar in letter T) as in the photo. Do not droop your leg down in back or droop your chest in front. Do not jut your chin forward. Chin in. Look in a mirror until you can tell straight positioning on your own.
3. Hold straight as long as you can. Switch legs. Hold straight as long as you can.

Want more? Do the same, standing tip-toe.