A smartphone-driven methodology for estimating physical activities and energy expenditure in free living conditions
A smartphone use for physical activity evaluation in free living conditions. The smartphone algorithm competes with sensors for energy expenditure. The algorithm takes advantages of the smartphone accelerometers without extra sensors. The performance does not require knowing the initial phone position. Evaluation and monitoring of physical activity in large and distant populations.
physical activity smartphone accelerometers energy expenditure estimation normal-weight subjects actiheart armband