. . SPORTS MEDICINE : ERGONOMICS : BIOMECHANICS : MEASUREMENT: Nike Unveils Wristband Designed to Measure Motion from Different Kinds of Activities . . Nike Unveils Wristband Designed to Measure Motion from Different Kinds of Activities By Associated Press, Published: January 19 Washington Post Post Sports http://www.washingtonpost.com/sports/nike-unveils-wristband-designed-to-measure-motion-from-different-kinds-of-activities/2012/01/19/ gIQAjNl8BQ_story.html
. A shorter URL for the above link: . http://tinyurl.com/7p8bd5f . .NEW YORK If Kevin Durant plays a triple-overtime NBA game and Lance Armstrong runs a marathon, who worked harder?
.Nike unveiled a high-tech wristband Thursday purporting to answer that question. The FuelBand, with a suggested retail price of $149, displays measures of calories burned and steps taken that many weekend warriors may be familiar with through gadgets and apps already on the market. But this device also counts something called NikeFuel, billed as a way to compare different activities through one metric.
. Running, dancing, skateboarding they all earn these points. .Nike measured the intensity of various actions, and recorded the corresponding motions, to create formulas to determine how much NikeFuel should be awarded when, say, Durant shoots a basketball.
.Scientists who study physical activity have been using a similar process with such devices, called accelerometers, for several years to measure how much energy subjects are expending. Nike isnt releasing details about its calculations for competitive reasons, so outside researchers in the field couldnt judge whether they considered the NikeFuel totals accurate.
.NikeFuel doesnt take into account factors such as a persons weight that affect the number of calories used. Patty Freedson, the chair of the kinesiology department at the University of Massachusetts-Amherst, said that made it difficult to compare the activities of different people.
.If a person is moving a certain amount and they weigh 100 pounds, a 200-pound person who weighs more actually expends more energy, she said.
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