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sfyrttwiww i nmi 18 thursday dec 12 2002 economist sun stouffville tribune sports science of the sole by jerome watt staff writer the average athlete might not give a lot of thought to running shoes but shoe manufacturers have it down to a science theres no such thing as a shoe that will make you go faster scott khowles product manager for fila canada said they can help you perform by reducing fatigue the three shoe companies with offices in york region fila nike and reebok put a lot of time and energy into making comfortable running shoes that prevent injury and improve per formance its easily two years from the initial design until the shoe reaches retail mr knowles said running shoes are based on running action that involves a heel strike roll to the midfoot and toeoff on the ground the design of the shoe begins with the bottom or outsole which often has flex grooves when the foot hits the ground the groovesspread and help absorb the pressure wehave these horizontal and vertical flex grooves richard sullivan product manager for reebok canada said when you run your toes spread and flex with the grooves the rubber on the outsole cushions the foot and helps pre vent wear and tear we have a high abrasion rubber on the heel areas the highwear areas mr sullivan said we have a blown rubber for when you land on your toes the portion of the shoe that covers the upper part of the feet known as the upper is made of a mesh material that allows feet to breathe each shoe manufacturer has its own system of cushioning in the midsole which provides the cushioning for the foot and is staff photosteve somerville scott knowles footwear product manager at fila canada inc shows off his companys latest shoe technology located between the outsole and the insole of the shoe fila offers a technology called 3action which is a pod filled with ambient air inside the pod are elastic pistons that absorb shock and are designed to ensure stability mr knowles said the typical running gait applies pressure to both the heel and the toe of the foot fila puts the 3action pods in the heel of all its shoes and in the toe of its higherend models fila also employs a technology called speed tech which uses a kevlar carbon frame its a kevlar carbon frame that goes along the bottom of the shoe along the outsole mr knowles said its very very light weight it has great elasticity and great resistence with the kevlar because of the combination of the two it improves the elasticity of the shoe and increases the propulsion of the shoe reebok has dmx technology which makes use of an air blad der that works with the running motion as you land on your heel it forces air into the forefoot pod it is an air transfer back and forth mr sullivan explained as you push off with your toes it forces air back into the heel you dont really feel it but it does give you an active cushion runners dont want to feel it theres no such thing as a shoe that will make you go faster according to its website nike uses air cushions and nike shox made of a highly resilient foam in columns that absorb the impact shoes are manufactured for the way a person runs there are three basic types of runners overpronators normal pronators and supinators an overpronators gait or run ning styleis characterized by a persons feet rolling in too much the majority of runners fall into this group in order to correct this shoe companies build up the inside of the shoe the medial area and the outside of the shoe the lateral area for overpronation we insert medial stability to give you sup port so you dont turn over on the inside of your foot and expend all that energy mr sullivan said see wrong page 19 roger varley been there done that lack of lawn doesnt deter lawn bowlers it was several degrees below zero a cold wind was blowing and night had fallen the perfect time for lawn bowl ing so think members of the newmarket indoor lawn bowling club whose numbers hover around 50 the lack of summer breezes chirping birds and the smell of greensward doesnt prevent these bowlers from following their pas sion even during winter bowling is available six days a week with snow covering the green out side four mens teams gathered saturday evening inside the long cin derblock clubhouse competing for the clubs challenge cup the two 90feetlong greencarpet ed pitches resembled a curling rink minus the ice and brooms but its not just a carpet four to five inches of fine sand form the base on top of the sand is a thick underpad which in turn is topped by three layers of indoorout door carpeting as the last two teams finished their game frank zazzara a 34year veteran gave me a few pointers on the art of indoor lawn bowling this is a lot faster than outdoors and theres no weather concerns he said i like a fast green and a true green and indoors is as true as you can get after showing me how to hold the see top page 19 gol shirts starting at 1999 greg norman callaway reebok indian motorcycle mens golf shirts 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