It's difficult to memorize the Hyakunin Isshu.

He is doing special exercises to strengthen his extensor digitorum longus.

He is doing special exercises to strengthen his flexor digitorum longus.

The levator costae longus is a part of our back muscles.

Ogura Hyakunin Isshu is one of the classical literatures of Japan.

He is doing special exercises to strengthen his flexor pollicis longus.

He injured his extensor pollicis longus.

He is doing special exercises to strengthen his extensor hallucis longus.

He started a special exercise to strengthen his flexor hallucis longus.

He is doing special exercises to strengthen his abductor pollicis longus.