Broken Arm
Breaking an arm sucks. You feel like there are so many things you cannot do when you have a broken arm. Depending on the location of the break, there are still some great exercises you can do to help make your upper body stronger. If you happen to break your arm closer to your hand, then you can do weighted squats with the assistance of a safety squat bar. The bar helps to make sure your arm, hand and elbow are not in a bad spot while doing the squats.
Tennis or Golfers Elbow
Frequent tennis and golfers can suffer from elbow injuries very easily. This can make playing tennis or golf or doing some workouts very painful. You can still work on strengthening your upper body by doing push-ups without putting a lot of pressure on your elbows. To help with this, use two dumbbells and place your hands on them a few inches outside of your shoulders and turn out 45 degrees. Or even try a push-up using the downward dog position.
Injured Rotator Cuff
It really depends on how bad your injury really is, because if it is minor, you are still able to get your cardio in. But you want to make sure to not put any unnecessary strain on your injury. When you injure your rotator cuff, you can still try to do the elliptical by holding on to the handles. Or you can try some rows with low weight. Just make sure to do a higher amount of reps.