Crescent Lunge

How to do it

From a forward fold or a halfway lift, step the left foot straight back into a long stance. Bend the right knee until it stacks over the right ankle — the shin stays roughly vertical. Straighten the left leg and lift the left heel as high as it will go, so the weight rides on the ball of the foot with the toes tucked under. Turn both hip points toward the front of the mat and let the tailbone drop, so the front of the left hip lengthens rather than the low back compressing. Reach both arms overhead alongside the ears. Step the back foot forward, stand tall in Mountain, and change sides.

Why it's good for runners

Two things a runner needs, in one standing shape. The straight back leg with the tailbone dropped puts the hip flexor on stretch — a muscle that spends every run being shortened — and it does it standing, under bodyweight, which is how running actually asks for that range. The lifted heel with the toes tucked lengthens the sole of the foot and the toe flexors at the same time: the tissue that absorbs every footstrike, and the tissue most runners never lengthen deliberately until it complains.

Common mistakes

Don't let the back heel drop toward the floor — a flat back foot turns this into a different pose and loses the sole-of-the-foot stretch that is half the reason it's here. Don't let the front knee slide out past the toes; lengthen the stance instead. And don't arch the low back to get the arms higher — tuck the tailbone first, then reach as far as that allows.