He started a special exercise to strengthen his articularis genus muscle.

He is doing special exercises to strengthen his popliteus muscle.

She was dancing, swaying her hips.

He is doing special exercises to strengthen his iliopsoas muscle.

He is doing special exercises to strengthen his psoas major muscle.

By strengthening the rotator lumborum, you can prevent lower back pain.

He is the lord of this region.

He feels responsible as the head of the family.

The Lord protects us.

What are you doing?