This one is from a good, 7-minute arms workout by Tracy Campoli. I like the whole thing, but these arm circles are especially good.
For arm circles, hold you arms out straight and circle them forward several times until you really feel it; then circle them backward several times. Start with small circles and then do larger circles to work your whole arm.
Start with your arms by your sides, and then raise your elbows to make right angles going out straight from your shoulders, as you see here. Then lower, raise again, and repeat until you start to cry.
Start again with your arms at your side. Now raise your palms flat toward the ceiling, then down, then back up again. Repeat until you cry for your mama.
For this arm workout from an eHow video tutorial, start by touching your fingertips to your temples with your elbows out to the sides. Push your elbows back as far as you can so you can feel your shoulder blades moving toward each other.
Bring your elbows in together so they touch in front of you (or almost touch), then back out again. Repeat until your shoulders cry out for mercy.
This is a fun arms exercise from a tutorial by Joanna Soh. Bend over onto your hands and feet.
Raise one hand up, then down a little bit further up from you. Then raise your other hand up, then down a little bit further up from you. Keep your feet in place as you do this. Inch your way up the mat, raising alternate arms.
Then inch your way back to your starting place, still alternating arms.
With your back to a chair and your legs in front of you, grip the edge of the seat of the chair as you see here. You'll want to make sure that chair is super stable against a wall.
Lower yourself down, then back up again. Repeat.
What I like about these workouts, and especially this last one, is that they work out the whole body, not just the arms. And these trainers do stretches afterward as well. Remember, as with all our exercise posts, talk with your doctor before starting a new workout.