Crunches

He stepped on the ice, and the crunches echoed across the frozen lake.

The crunchy snow made loud crunches as they walked through it.

The athlete crunches the weights during his workout.

He added crunches to his exercise routine to target his core muscles.

The trainer demonstrated how to do crunches properly to avoid injury.

She found that doing crunches regularly helped improve her posture.

She felt soreness in her abs the day after doing a lot of crunches.

He felt a burn in his abs after doing several sets of crunches.