maybe you've read about some famous athlete who touts the benefits of this newfangled medical technique - PRP. before this, you may have heard of athletes touting the benefits of prolotherapy. maybe you've even tried one or both of these out for you chronic, nagging, overuse tendinopathy or what not. if so, let me know how it worked. because research into these methodologies is scant and equivocal, tho at least not so negative as to warrant a health warning. the real question is, do either of these work? and when should you consider trying these needling techniques - before a solid period of rest and rehab, or right before surgery? anyway, read this and think about it. especially if you're a personal trainer, like me, you might want to research it a bit more vigorously than your clients might do so that you can give them the best advice possible. don't look on line for testimonials or other 'articles' about these; look at pubmed.com or webmd.com.
at least, read this: http://well.blogs.nytimes.com/2011/01/26/phys-ed-does-platelet-rich-plasma-therapy-really-work/?ref=health