![Accuracy and validity of a combined heart rate and motion sensor for the measurement of free-living physical activity energy expenditure in adults in Cameroon]()
Accuracy and validity of a combined heart rate and motion sensor for the measurement of free-living physical activity energy expenditure in adults in CameroonAssah, F. K.; Ekelund, U.; Brage, S.; Wright, A.; Mbanya, J. C.; Wareham, N. J. · International Journal of Epidemiology · 2011