Joshua, you make some valid points, as did Hawk and others. I always hesitate to suggest this (years of being "blasted" onthe BTC has taken it toll) but as you read this or anyother study, I would like to suggest you read (print it out for reference ..as reading it on a monitor is much more difficult) Dr Mulhall's paper "interrepreting medical liaterature" on our APDA site.
Often the concern is not if it will work, but if it will harm. Medically heat is used often, but then so is cold. How and why it affects what ever it is used on is only part of the issue. Infra red is great, but in the heat penetration (especially since it is hard to focus a large bulb to a specific area) what else is affected?..and how does that specific tissue, or vascular area, respond to prolonged heat even gentle?...lots of questions, none of which I have the answer for. I do know this, as a nurse I worked in rehab ..we used ultra sound (heating) on specific areas..while the "amt" of pulse (heat)was calibrated, we also were taught NOt to focus it in one area for more than a second or so...and to constantly keep it in motion...reason..direct heat for any longer than that could and would damage the surrounding tissue...Infra red is not the same thing I realize, but again, no real studies, and there is the rub!
The study itself is important, but so are the contraindications, and whether or not it was controlled, how long the study was done, follow up, and how many were involved..lots of stuff to consider.
Keep Safe,
Marti