You mention high rep workouts and are asking about boxing gloves. Do you mean high rep bag workouts? If that's what you are talking about, boxing gloves will do very little for forearm, elbow and shoulder issues - that impact will remain the same with or without gloves.
If it is indeed gloves you need to protect your hands for bag workouts what you need are bag gloves, not boxing gloves. You may also want to consider hand wraps to protect your hands and wrists under the gloves. Go to www.ringside.com
and on the home page you get to you will see what are called Super Bag Gloves. I have an older version of these gloves and they are very good.
I am not clear on what you are looking for or what you want them to do. Can you clarify what you are looking for?