Push-ups and pull-ups are two great upper body exercises that don't require special equipment. For weight training, curls, flies, bench presses and hammer curls are recommended for upper body workouts.
Adjustable dumbbells are a good instrument to use as exercise for you upper body as long as you're doing an exercise right and appropriate for you. Ajustable weights can save you space too.
I had read that it is the core exercise
It is possible to do an upper body workout with an exercise ball. You can do push ups, chest flys, and back extensions using an exercise ball.
They are an upper body exercise. They also work core muscles.
everything but mostly upper body
Its extremely good exercise for the upper body, arms and legs. Your muscles always ache afterwards.
An elliptical stepper with upper arm moving bars will work both upper and lower body muscles.
AN exercise pushing your upper body up from a prone position.
To build upper body strength the best chest exercise is lifting weights.Dumbells are the easiest way.Start on smaller weights and build up to heavy weights.
Throwing the discus isn't really an exercise. It's an activity. It does require a large amount of upper body strength. You can learn to build upper body strength by visiting http://www.squidoo.com/build-upper-body-muscle.
You must do some upper body pull ups as well as dead lifts for strengthening the lower back muscles. You could check the sample workout on how to do a proper pull up exercise on at youtube.com
Yes it is because it helps you sweat and it helps the upper body.