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.

Sunday is my day off.

What is the date today?

When the sun rises, a new day begins.

It's wonderful to see the sun rise.

I go to the gym three times a day.

This sunshade is useful for blocking the strong sunlight.