Pedometers are motion sensors that measure steps. Usually a lever arm suspended from a spring moves up and down with the motion of walking or running. The arm works like a pendulum. An electric circuit closes after each movement and records the step on a digital readout. Most electronic pedometers ask you to input an average step length to aid accuracy.
Ever wonder about the reliability and accuracy of those pedometers that more and more walkers are sporting these days? Well, so did a group of researchers who recently compared 10 electronic pedometers and reported the findings in Medicine & Science in Sports & Exercise (2003, 35 , 1455-60).
Saddled with a growing number of at-risk employees who are overweight or obese, more companies are recognizing the importance of preventive health measures. Toward that end, many businesses are now offering their workers weight loss and fitness programs to keep health insurance costs down.