Accuracy of a combined heart rate and motion sensor for assessing energy expenditure in free-living adults during a double-blind crossover caffeine trial using doubly labeled water as the reference method.
Silva AM, Santos DA, Matias CN, Júdice PB, Magalhães JP, Ekelund U, Sardinha LB
European Journal of Clinical Nutrition. May 2013
(DOI : 10.1038/ejcn.2014.51)
Validity of a combined heart rate and motion sensor for the measurement of free-living energy expenditure in very active individuals.
Santos DA, Silva AM, Matias CN, Magalhães JP, Fields DA, Minderico CS, Ekelund U, Sardinha LB
Journal of science and medicine in sport. Dec 2012
(DOI : 10.1016/j.jsams.2013.09.006)