Learn how to perform the lying waist stretch.
This
exercise stretches the abdominals and the obliques.
Find other stretches at stretching main.
Description: Lying Waist Stretch
This is how to perform the left side of the lying
waist stretch.
To stretch the other side, just do the whole thing the other way around.
Lie down flat on the floor and spread your arms to the left and the right.
Extend both legs.
Then lift the left leg over the right leg, and push the right leg forward under the left leg.
This will turn your hips counter clockwise ( almost 180 degrees ) and
stretch your waist.
Keep your upper body flat on the floor.
Hold this position for approximately 30 seconds
and then stretch the other side.