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

He is doing special exercises to strengthen his flexor hallucis brevis.

I started exercises to strengthen the abductor hallucis muscle.

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

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

He cautioned not to speak ill of others, saying, 'Illness enters by the mouth, and disaster does not come out of it.'

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

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