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Should I Ice My Injury

3/5/2017

8 Comments

 
Not if you want optimal healing.

In 1978, Gabe Merkin’s best-selling sports medicine book introduced the term “RICE” to health professionals and athletes the world over.  To this day Rest Ice Compression Elevation is – rather unfortunately – still recommended and promoted by physical therapists, coaches and just about anyone else involved on the sidelines of sport.  It is still recommended despite Dr Mirkin’s (among other scientists) more recent publications that ice may, in fact, delay tissue healing and recovery.  You can read his own admission here.
Should I Ice My Injury
Piles of studies – some in mice and rats, others in humans – have demonstrated that cooling down an acute injury with ice might actually cause longer term tissue damage.  The National Athletic Trainers Association position statement (2013) on ankle sprains says that there is little or poor evidence for the benefits of icing injuries.  All of this scientific evidence tends to point towards a couple of major factors in the question of ice for injuries: 1) inflammation is necessary for healing, 2) reducing inflammation delays healing, 3) if there is any benefit, the benefit is in a short-term pain relief.
 
Let’s briefly discuss those points:
 
Inflammation is necessary for healing
This is such a simple point.  The body is smart, right?  If it wasn’t, humans wouldn’t have made it as far as we have.  Acute inflammation is a great example of how awesome the human body is at looking after itself.  If you get a cut on your knee and it gets infected, an inflammatory response is triggered by the immune system.  A big part of that inflammatory response is to spike the blood stream with purpose-built cells that will hunt down and destroy the invading pathogen.  What many people don’t realise is that when you are sore the day after a long run or hard gym session, an almost identical situation is happening in your body.  The tissues that were damaged and torn during the exercise trigger an immune system inflammatory response that sends in healing cells which clean up the damage and prepare the tissues for optimal healing – just like they do at the site of an infected cut or rash.  This inflammatory process necessary and desirable for repair and recovery from training and injury.
 
To reduce inflammation is to reduce healing
Inflammation is a GOOD thing.  It is an example of your body knowing exactly what to do and how to do it.  The fact that somewhere along the way we humans decided that reducing acute inflammation is helpful, is actually rather counterintuitive.  To place ice on an injury to decrease the inflammation is literally decreasing the healing capacity of the body and slowing down a process that works perfectly well (unless you’ve got some sort of rare underlying condition).  The cells your body produces for cleaning up damaged tissues and preparing the site for healing will not make it to the site as and when they should if extreme cold is added to the equation.  The ice causes blood vessels to constrict, thus decreasing the flow of blood (and therefore helpful healing cells) to the iced area.  Inflammation is the opposite response – it is the blood vessels opening up more so than usual so that more blood and cells can access the site of injury.  Again, healing requires this increased blood flow and is a desirable process.  Research has shown us that icing an injury causes a delayed healing response which can result in suboptimal healing overall and in some cases might even lead to more scar tissue than if the ice were not used.
 
Ice provides short-term pain relief
Perhaps the most evidenced benefit of icing an injury is the 20-30 minute pain relief it can provide.  At first this sounds great, but once again it can be quite a counterintuitive idea when you think deeper about what acute pain actually means.  Pain has a function.  Pain is your body’s way of saying “hey there’s some damage here – I need some time to clean this up and repair, so please stop using me for meantime!”.  Pain is your body’s STOP sign.  Sure, relieving this pain is nice, but you’ve got to be weary of the fact that you might do more damage to the area if you continue to use it because it “doesn’t feel so bad” as a result of the pain relief.  Hopefully you’ve learned from the previous points that the possibly irreversible damage that can be done by icing an injury is not worth the half-hour of pain relief.  If your pain is excruciating and/or you cannot move the injury, you should seek immediate medical help to rule out or properly manage any nasties like fractures or other severe internal damage. 
 
So, we’ve told you all about why you shouldn’t ice an injury.  What should you do then?

  • First of all, stop exercising immediately.  Remember that the pain is a signal to stop using something because it can’t function as it should be able to. 
  • Immobilise the injured area to prevent any further damage.  Over the next few hours and days (depending on the injury), slowly introduce light movement to the area either by using your hands to gently move it or the muscles around the injury.  Don’t push for any more range of motion than is comfortable.
  • If you simply can’t deal with the pain, and a health professional has already ruled out severe damage, you can opt for minimal periods of compression and/or icing.  If you do opt for icing, only apply the cold for 10 minutes and then leave it off for 20 minutes.  Repeat a few times if necessary.  By breaking up the cold periods, the blood vessels are able to open up and allow cellular and nutrient flow into the injured area. 
  • On that note, nutrients are your best friend and worst enemy through injury.  If you fuel your body with hearty, healthy real foods packed with micronutrients in the days following an injury, you’ll promote powerful healing.  If you eat and drink rubbish like processed foods and alcohol, you’ll perpetuate pain and prolonged recovery.
  • Functional rehabilitation and joint mobilisation and manipulation are all well supported by scientific evidence, so it’s in your best interests to seek appropriate advice is the injury is of significant severity.
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8 Comments
Matt
3/5/2017 01:59:09 pm

So jumping in the spa for 30mins after a 6 hour hill run is a good thing then? I always feel better for it, aids with stretching too.

Reply
James Kuegler link
7/5/2017 12:13:52 am

More than likely Matt, though a six hour hill run might be more trouble than it's worth.

Reply
Harley
3/5/2017 03:41:11 pm

Looking after a national sports team I was flabbergasted how many team practitioners still followed this old school doctrine of belief.

The one thing I would add to this though J is to help aid in the recovery process not to limit movement entirely. We need movement to help the lymphatic system flush the area of injury, essentially taking the waste product away and bringing in more healing 'stuff'. Moving as much as you can in the general area WITHOUT causing pain, i.e. for a sprained ankle this may be as much as wiggling your toes - if it doesn't cause pain!! I told athletes to remember the saying "use your brain, don't cause pain". It's the lymphatic systems job to clean up the body, and it's in full swing in times of tissue injury.

Studies have shown that ice actually decreases the ability of the lymphatic vessels to pick up waste product as it makes the holes too small in the vessel walls - another reason to avoid ice.

My 2 cents.

Reply
James Kuegler link
7/5/2017 12:19:20 am

Harley, I agree that rarely (if ever) is complete rest the best remedy, though I am sure you will agree that in the acute stage (24-48 hours) of injury immobilisation is important. I also agree with your 'wiggling the toes' example.

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Harley
8/5/2017 09:19:13 am

Definitely agree on that

Dion
3/5/2017 04:24:24 pm

So then, is there any benefit to an ice bath? It seems to be quite popular after long runs. Does it do anything useful? I've tried one once, but it didn't help. What I find helpful is a HOT shower, it's very relaxing.

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Harley
3/5/2017 09:05:59 pm

Have a read here Dion

https://www.auckland.ac.nz/en/about/news-events-and-notices/news/news-2017/02/ice-baths-no-good-for-muscle-recovery.html

We must remember though the power of the mind is incredible and if merely that is all that is creating the positive outcome for you then bath away!

My third cent

Reply
James Kuegler link
7/5/2017 12:23:50 am

No. Not if you want optimal healing.

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