How to do it: Suitcase crunches are a variation of traditional crunches that target the abdominal muscles. Lie on your back with your knees bent and feet flat on the ground. Hold a weight with ...
“I definitely don’t recommend traditional crunches,” says Cody Lewin ... Plus, you’ll also work your back, biceps, and shoulders. 2. Suitcase carries “Without a doubt, this is one ...