An old wives tail tells us that to rid yourself of pf or whatever they called it in the time of wivestails, you braced yourself with moonshine, climbed on a table and jumped full force on the affected site. I believe in the benefits of this wives tail although i recognize the associated risks. The baseball bat would provide benefits to the pf but the negative effects,i.e. damaged surrounding tissue, broken ankle, probably would outweigh the benefits.
IMO, I saw this on the yahoo message boards,( in my opinion) there is some benefit from ultrasound and massage. I spent many hours during my college wrestling days undergoing ultrasound and massage therapy for my injured muscles. There was a benefit. The diference is that the shockwave produced by the ossatron last 250 nanoseconds and delivers an incredible (up to 6000 psi) amount of energy during this brief timeframe. This high energy causes trauma/micoscopic injury that leads to neovascularity and healing. (I know phil will love that line)
I will have someone from HMT(the swiss manufacturer) explain this more scientifically. Obviously I am not a scientist or physicist. I am a businessman with a vested interest in the outcome of the fda ..