A dampener will do nothing for your elbow. If you have tennis elbow, or the stirrings of tennis elbow you might consider using a 27 " racquet, in a softer flex (that one's about 70?), with gut strung lower. Poly is fantastic, but unless you are using one of the softer polys, like SPP, then you are courting disaster if you are having elbow pain.
To answer your question right off the bat, yes, tennis vibration dampeners can help with tennis elbow. If you’re not familiar, tennis elbow is when your elbow tendons are inflamed and painful. Usually this inflammation and pain is caused by strain or over use. It’s named ‘tennis elbow’ because it’s often related to playing tennis, at least when it’s in this region of your arm.
Basically, a dampener is a small piece of rubber that you insert between the strings of your tennis racket. Originally the vibration dampener was invented by René Lacoste in 1964. The aim of his invention was to reduce the vibrations of the racket during ball contact and thus protect tennis players from arm injuries.
Step 1. Locate the two centermost vertical strings. Step 2: Place the right side of the dampener into the right-center string. You should feel a pop or click as the... Step 3: Pull the left-center string slightly to the left, then attach the left side of the dampener to the string. Again... Step 4. ...
Dampeners do not help tennis elbow, change string tension, increase string durability, boost power, add spin or any of the other benefits you may have seen touted elsewhere. The reason this misconception has spread is due to manufacturers using terms in their marketing to make you think playing without a vibration dampener is leaving you open to all sorts of elbow problems.
Players that like vibration dampeners mainly use it because it decreases the “ping” sound the ball makes at impact. For many players this is more of a mental purpose than a physical purpose. Two common misconceptions with dampeners are that they help with tennis elbow problems and reduce a racquets power level.