Here’s a helpful trick when performing reverse curls: Hug a pillow between your calves and hamstrings. This activates the backs of your thighs so you can’t use the hip flexors (the opposing muscle ...

Stand with your legs shoulder-width apart and hold two dumbbells at your thighs with an overhand grip. Raise your forearms, keeping your upper arms close to your body, so that your palms face forward ...