The Theragun example
The saving grace is that most of the massage guns that are flooding the market are not strong enough to do any serious damage, but I was speaking recently to a colleague who’d fallen for the marketing and brought a Theragun. They have a powerful jackhammer mechanism that drive the head in 16mm. She was telling me that she could only use it on slow speed, otherwise it would hurt the patients.
The ironic thing about that is that according to science vibrations at that slow speed are practically useless. To get the proper benefits from vibrations you need about 50 hz, which would be about the top speed for the Theragun, but my colleague couldn’t do that because it would hurt people.
So, hopefully you now understand that while massage guns claim to combine the benefits of conventional and vibration massage the reality is that they do neither well and are more likely to hurt you. Stick to either genuine vibration or conventional massage. If you want the hand held device you can use yourself that will need to be a genuine vibration massager. Please see our article How to choose a massager
Personal use vibration massagers are not that common
That said, most genuine vibration massagers are made for professionals to use on their patients, such as those pictured, not personal use.