Crunches

The factory worker was responsible for the crunches of the plastic bottles.

The loud crunches of the machine could be heard from the next room.

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.