First, however, let me explain why I feel that I am qualified to review them for you. People often tell me that I didn't need a degree in exercise science to sell pedometers. I feel that they are wrong. First you may find it helpful to know what a pedometer does and how a pedometer works. A pedometer simply counts steps.
Some individuals think that pedometers measure distance.
Pedometers also sometimes calculate physical activity energy expenditure. They use an equation to do this as well. The equation used varies depending on the brand of the pedometer. A pedometer contains an internal mechanism that responds to vertical accelerations of the body. That internal mechanism is a horizontal, spring-suspended lever arm.