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Besides an initial steroid injection, the most recent set of injections were evidently plasma-rich platelets. There have been hundreds of studies looking at this mode of therapy.........and, despite anecdotal testimony, the data as to prove efficacy has remained very questionable.
The first week after the injections, there should be little activity other than walking. Pain from the injections usually lasts only a few days. Typical progression of activity then goes to gentle stretching and range of motion exercises usually begun weeks 1-2 with gentle strengthening in weeks 3-6. If all goes well, eccentric strengthening at 6 weeks with sport specific training and return to play thereafter.
There is no real "positive change" that is even expected at 2 weeks post injections, and in order to gain any purported safe benefits from this therapy, the steps of post injection rehab must still not be rushed.
BTW, from Reed's explanation of they "take the bad blood out, spin it if Im not mistaken and put the good blood back in, he seems to have no real concept (even in lay terms) how the injections are supposed to work.