Crunches

He focused on his breathing while doing crunches to improve his technique.

The fitness instructor demonstrated how to do crunches with perfect form.

She incorporated different variations of crunches into her workout for better results.

The weightlifter did sit-ups and crunches to strengthen his abdominal muscles.

The personal trainer recommended doing more crunches to strengthen his core.

He felt soreness in his abs the day after doing too many crunches.

He struggled to do crunches due to his lower back pain.

She used a stability ball to do her crunches for a greater challenge.

He did 50 crunches as part of his daily workout routine.

She struggled with doing proper crunches during her fitness class.

She felt a burn in her abs as she pushed through her set of crunches.