High heels leave permanent marks on legs and not just blisters!
Most women tend that high heels are perfectly comfy—once you get used to them . What inveterate wearers sometimes gripe about is niggling pain felt when forced to walk with their feet flat. Tills observation prompted Marco Narici of Manchester Metropolitan University in Britain and his team find out once and for all what, if anything, happens to legs persistently subjected 10 high heeled treatment.
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By pushing heels up, such shoes in effect shorten the calf muscles. Since other research has shown that holding a muscle in a shortened position for a long time can lead to permanent contraction, high heels could have a durable effect on aficionados anatomy. As Dr Narici and his colleagues report in the Journal of Experimental Biology, this ts in fact what happens.
The team's first slefxas It | were, was to find a suitable leg sample, to do this they placed an ad in a local newspaper inviting anyone who had regu Larly worn stilettos with heels of 5cm (2 inches) or more at least five times a week for a minimum of two years. 80 of the volunteers who came forth Dr Narici picked : who complained of discomfort when walking flat-footed. He also recruited 9 heel averse women as a control.
Dr Narici began by comparing the volume of calf muscles using magnetic-resonance imaging, since forcing calves into a shortened position also reduces the load on them, he expected the heel-wearers' muscles to be proportional ly smaller. To his surprise, they weren't. However ultrasound revealed that the muscle fibres that make up the calves were indeed 13% shorter, on average, for the heel fans.
In principle.muscles wilh shorter fibres ought to exert less downward force, making those who have them less firm on their feet. Bui when Dr Narici strapped his heel wearers'ankles into a dynamometer, which can measure a foot'sturning force, the readings were indistinguishable from the control group's. This indicated some compensatory mechanism must be in play. The researchers'attention then turned to the Achilles tendon, which connects the calf to the heel. They discovered that it was significantly thicker and stiffer for the heel wearers. This rigidity makes up for the force lost due to shorter calves and also may explains the mysterious - discomfort
So. what are ailing Manolo lovers to do? Dr Narici recommends stretching exercises. The alternative is not to take the shoes off at all. Many Blahnik buffs could probably live with that.
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