Full crescent lunge is one of the best stretches and strengtheners for your hips and legs. But, there are quite a few intricacies to be aware of.
TO GET THE PROPER STRETCH
Upon first glance, the photo above may look "graceful", but this alignment won't get you the stretch you need. Let me outline why. Literally.
See how the hips are pitched forward and the low back has a huge curve? Now, the normal shape of the lower spine IS indeed concave (to speak in terminology that is more familiar to the everyone), but certainly not as concave as this picture! It's quite easy for the hips and gluten to move back in space while the back leg moves into this motion.
Take one hand to your low back/sacrum area, and one hand to your low belly. Bend the back knee and tuck the tailbone/hips up underneath you, aiming for a rather vertical line (again, there will still be a little bit of that natural low back curve left and in general, a small "