Retired bodybuilder Chris Bumstead—six-time Mr. Olympia Classic Physique champ—shared why grip strength is the key to forearm ...

The best arm workouts target several major muscles at once. Tricep dips, push-ups, planks, and burpees will tone your arms and don't require weights. Exercise your upper body two to three times a ...

Your tricep muscles contract and pull, while your bicep muscles relax, causing your arm to straighten back out. You can find antagonistic pairs in your legs too. Just extend and curl and see which ...