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

He stretches his flexors every day.

My opponens pollicis muscle hurts.

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

I strained a muscle at the gym yesterday.

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

He grimaced and said, 'It hurts.'

He injured his extensor pollicis longus.

She started a special exercise to strengthen her adductor pollicis.

I go jogging every day.