Time for a Jog, Anyone?

PODIATRY TODAY
March 2009
Study Examines Shoelace Patterns On Running Shoes
By Brian McCurdy, Senior Editor

Before hitting the track, runners must take various factors into account to streamline their performance. A recent study in the Journal of Sports Medicine explores how different shoelace patterns can affect the biomechanics of runners.

According to the study, researchers evaluated 20 experienced runners and the influence of shoelace tightness and the number of laced eyelets upon foot pronation during contact, tibial acceleration and plantar pressure distribution.

Researchers found that running shoes with the tightest and highest lacing conditions exhibited reduced loading rates and pronation velocities. The seven-eyelet lacing pattern facilitated the lowest peak pressures under the heel and lateral midfoot, according to the study authors. Researchers concluded that a firm foot-to-shoe coupling with higher lacing facilitates a more effective use of running shoes, and may reduce the risk of lower limb injury.

The study’s conclusion is logical as the tighter the shoelaces are, the more support the runner has and the better the foot will stay in place.

“Lacing can be subjective as can the fit of shoes but the bottom line is that the shoe needs to be tied tight. Now there is data to support that,” says a podiatrist, who is in private practice in the USA.

Another podiatrist agrees that a tightly laced shoe seems to enhance performance. He attributes this to either the enhanced “coupling” of the foot to the shoe as the researchers suggest or an enhanced proprioceptive mechanism that gives the athlete a better “feel” for the sport surface.
Podiatrists usually recommend that athletes use all seven laces, which ensures good coupling of the foot and shoe. When athletes combine this lacing with a textured insole and an appropriate shoe for their specific foot type, it can be helpful in preventing injuries.

To be continued...

Be sure to explore Dr. Vail's website for more information about proper care of your feet.