Crescent Lunge
How to do it
From a forward fold or a halfway lift, step the left foot straight back into a long stance. 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. Now sink: let the hips drop down and travel forward until the right knee is over or slightly past the right toes. 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 Warrior I, a good pose in its own right but not this one, and it loses the sole-of-the-foot stretch that is half the reason it's here. Don't stay tall and upright: hips that don't travel forward leave the hip flexor barely touched, and a knee that ends up over or past the toes is the shape working, not a fault. And don't arch the low back to get the arms higher — drop the tailbone first, then reach as far as that allows.