Link: Ask the Doc: The dangers of shin conditioning and MRSA skin infections | MMAjunkie.com.
Is there a downside? You bet. Injuries can include cuts, abrasions, skin infections, stress fractures, ligament and tendon injury and broken bones. The most concerning potential problem is applying this technique to the growing bones of very young children.
Fortunately, children are very resilient but not indestructible. As we've discussed before, growing bones have growth plates that do not tolerate injury well. Repetitive trauma from kicking that bag all day can cause the growth plate to close early and stunt growth.
Q. What is a "mersa" infection? Is it a big deal? Why are gyms so freaked out about them?
A. I dare you to ask Diego Sanchez if MRSA skin infections are a big deal. Go on – I dare you. (Just kidding. Don't do it. That's a bad man.)
MRSA (methicillin-resistant staph aureus) is a super-bug (bacteria) that is not susceptible to common first-line antibiotics. The common version of this bacteria (staph aureus) is normally found almost everywhere (check your nose) and usually not a big deal for young healthy people. But due to the overuse of antibiotics, the common version got smart and mutated to a strain that – as you can see – is very aggressive, easily transmitted by contact and hard to treat.
Unfortunately, just attacking MRSA with bigger guns (stronger antibiotics) gives it a chance to one day mutate into a Godzilla that we may have no answer for. So as doctors, we would prefer to stop its spread and contain it rather than treat it.
Wrestling (including all common grappling styles in MMA, jiu jitsu, etc.) gyms are the perfect breeding grounds and thus ground zero. These facilities are usually kept very warm, have sweaty mats from intense training, and by definition require close sustained bodily contact. In this setting a scrape, pimple or simple hair bump can go bad very quickly.
What can we do to protect ourselves? Shower with anti-bacterial soap (Dial) immediately after practice (a bit controversial but currently the CDC standard). Do not wait until you get home. Practice good mat hygiene. The mat and all surfaces, including equipment, should be mopped or wiped down before and after each practice with a mild, diluted Clorox solution (or other appropriate widely available antibacterial cleaning solution) then be allowed to dry thoroughly. Once dry the mat should then be mopped with clean water to remove any residue. Every gym should maintain multiple, readily available dispensers of hand sanitizer and encourage/mandate its use. (If you must ask someone for it, that's not readily available.) Last but not least, develop a fetish about checking your skin for any type of scrape, scratch, bump or insect bite.