Not long ago a reader emailed me asking if I had heard about the comments that are coming out now regarding the ‘side effects’ of the clunky, inverted sole shoes that are gaining in popularity.

Shoes like these are marketed as fitness tools, with the presumption (supposedly backed by research) that they will tone the backside, thighs, back, and abdomen.

The theory is that by causing ‘natural instability’ the wearer must work harder to stay balanced, and the process to do this naturally tones leg, buttock, and abdominal muscles.

I am a little perplexed by the phrase ‘natural instability.’ What is so natural about an expensive pair of shoes causing you to be off-balance?

The jury seems to be out regarding the actual effectiveness. Certified fitness trainers testing the shoes will tell you their studies show that they have no measurable advantage over standard running shoes whatsoever. But these folks have a vested interest in them not working: who needs a trainer if a pair of shoes and an everyday activity will tone you up.

The shoemakers themselves have funded research studies that supposedly prove the shoes make a real difference and deliver as promised, but again, vested interest there.

So I looked more into these shoes and the potential problems surrounding them (aside from the price tag) and found a great many comments from podiatrists, osteopaths, wearers, chiropractors, and others to suggest that they really aren’t worth the money, considering the problems that crop up.

One problem that everyone can agree upon is that because of the shoe’s unstable nature, it is absolutely not recommended for people who experience vertigo or dizziness, or have balance problems. It can worsen the problems and make walking unsafe.

The shoemakers themselves tout the shoe’s instability as the reason the show ‘works’ to get a wearer in better shape. It follows that adding instability to the wardrobe of a vertigo sufferer is ill-advised.

Another problem is that the shoes aggravate plantar fasciitis. This painful foot condition generally requires the sufferer to carefully consider what they put on their feet. Because many of the recommended shoes and orthotics can be very expensive anyway, most experts say to stay away from them.

The overriding concept everyone agreed upon is simply that no muscle is an island. What you do to the feet will have consequences in the head. What you do to the legs will have consequences in the back.

Remember that old song that went something like, “the leg bone’s connected to the knee bone?” Well, all of our body’s machination components are connected. Interrupting the efficient working of one area of the musculoskeletal system will more often than not cause problems elsewhere.

What I found interesting, though, is people who loved the shoes found that wearing them helped to alleviate back pain, especially if they were in a job that required long hours standing or walking on hard, man-made surfaces such as concrete or linoleum.

It makes sense considering that back pain sufferers find relief from therapy that gently works to strengthen the lower back and also the fact that all that extra shoe sole absorbs a ton of shock that would find its way into the lower back of someone wearing a standard running or walking shoe.

So what is the verdict…do we like them or hate them? I suppose it depends upon what your goal is. If it’s fitness, I would offer that any walking routine will help get you there, especially if you combine it with balance exercises, stretching, proper diet, and proper amounts of un-tinkered-with water.

You shouldn’t need a fancy-schmancy shoe to do that, especially if wearing it could cause injury or other problems.

If you have them and like what it does for your back than have at it. I would rather see you investing in footwear than in the drug companies’ answers to pain and inviting liver and kidney damage.

I would like to hear your comments about this issue. If you have them, do you like them?

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