Trainers share how to make the most of arm exercises without weights, plus our favorite moves that help improve mobility and ...

These are the muscles located at the front of your upper arms, between the shoulders ... Sit or stand with your back straight. Hold one dumbbell with both hands around the handle.

The best arm workouts target several major muscles at once ... tap your left shin or toes. 3. Return back to the high plank and place your hand on the ground. 9. Plank saw 1.

Position your left knee and hand on the bench beside the dumbbell, keeping your core tight and back straight ... Using your core and left arm muscles, lift your torso until your left arm is ...

Neutral because our hands are pointed in ... You'll really feel it in your tricep muscle in the back of your arm. Remember, don't let those elbows flail out. One more time. All righty.

Artificial muscles on either side of the forearm contract and relax to suppress the involuntary shaking of the wrist and hand. The researchers see their biorobotic arm ... for the back-and-forth ...