Friday, December 30, 2011 | | By: Admin
Dr Mel Siff Talks Safety and Wearing Shoes http://bit.ly/tALthF
Here is an extract on the biomechanics of the foot and shoe

safety from Dr Mel Siff's (www.drmelsiff.com) book "Facts and Fallacies of Fitness" (2000).

More of Mel Siff brilliant work, and those who are continuing it at http://bit.ly/uWx8mn



SHOES AND SAFETY



Shoe manufacturers would have us believe that the primary solution to most

Aerobics or running injuries is the wearing of expensive footwear. Ailments

such as shin splints, iliotibial band syndrome and peripatellar pain are

attributed variously to excessive shock loading of the limbs, pronation or

supination. Research, however, reveals that fewer injuries occur among

those who wear thin soled shoes or no shoes at all, even though the heel

strike forces are greater.



Furthermore, running shoes seem to be associated with fewer injuries in

fitness classes than so-called 'aerobics shoes'. Nigg, in his book "The

Biomechanics of Running Shoes", reports that on firm shock absorbing mats,

the difference in heel strike force is minimal between bare feet, thick-soled

shoes and thin-soled shoes. Nigg also points out that the use of any shoe

usually increases the tendency of the foot to pronate, particularly if the

impact forces are smaller.



Moreover, several studies have shown that there is no correlation between the

amount of shoe cushioning and impact absorption by footwear during

locomotion. Similarly, other research has been unable to provide evidence

that expensive athletic footwear improves protection from injury to the lower

extremities. The following references address these issues:



Caspersen C et al (1984) The incidence of injuries and hazards in

recreational and fitness runners Med Sci Sports Exerc 16: 113



Clarke T et al (1982) The effects of shoe cushioning upon selected force

and temporal patterns in running Med Sci Sports Exerc 14: 144



Powell K et al (1986) An epidemiological perspective on the causes of

running injuries Phys Sports Medicine 14: 100-114



Robbins S

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