Let's be honest, there's a lot of sh*t in the gym that can be very intimidating, especially when you aren't 100 percent sure how to use the equipment. One piece that is beyond confusing if you've ...

Plus, which move is more effective for strong abs.

This exercise only targets the abdominal muscles, so it’s not a functional core workout. Crunches can be hard on your back and neck, and may not be safe for everyone. Share on Pinterest The crunch is ...