The superior gemellus muscle is a part of the human body, mainly supporting movements from the waist to the knee.

He mainly eats vegetables.

I strained a muscle at the gym yesterday.

He was dancing, swinging his hips.

This world where people live is beautiful, and sometimes harsh.

Humans can make mistakes.

This old document details the lifestyle of humans.

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.