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

He stretches his extensors every day.

He had difficulty walking due to an injury to his extensor hallucis brevis.

I strained a muscle at the gym yesterday.

My flexor pollicis brevis hurts.

She started a special exercise to strengthen her adductor pollicis.

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

He is doing a special exercise to strengthen his extensor digiti minimi.

He stretches every day to lengthen his legs.

Nobu is my best friend.