The makers claim that this natural instability strengthens the muscles, increases muscle activity, calorie burn and blood circulation. They also say that it reduces the shock forces on joints which help prevent a variety of degenerative muscular and skeletal problems including back pain .
These are pretty bold claims but there is no doubt that MBT shoes are popular both as recreation and sportswear. A study by Sheffield Hallam University recently concluded that MBT shoes were better for the knees ankles than normal shoes. The study also concluded that if you walk correctly you would take shorter strides while walking in MBTs. Shorter strides would mean more steps and more expending of energy and this would increase your calorie burn.
As to the question of whether they are worth the money I suppose this has to be a personal judgement. If you spend long periods of time on your feet then you may benefit from them. However, if you are someone who just goes for gentle walks to keep fit then perhaps a good pair of conventional trainers at half the price will be fine.
MBT shoes and trainers are incredibly popular and good for your health. This article is a short review of these incredible shoes and also gives advice on avoiding the increasing number of fakes being sold.
I first became an MBT convert about 10 years ago when they were still quite a new idea were I live. Since then I've also tried other "similar" shoes such as Sketchers and Chung Shi but nothing compares to my MBT trainers.

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