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. ... Most dampeners are usually fairly small and do not make significant changes in the way a racquet can play.
Do pros use vibration dampeners?
The results show that on the men's ATP Tour, 58% of the top pros do use dampeners, while 42% do not. And on the women's WTA Tour, a staggering 76% do use vibration dampeners, while only 24% do not.
Why do pro tennis players not use shock absorbers?
At most a dampener might affect the sound of the ball hitting the racket and not by much. A dampener does nothing else. A dampener won't make your racket more arm friendly or improve your play. It's purely a marketing gimmick thing.