At the beginning, 219 people were selected to participate and were given accelerometers to wear on their right hip for two sessions, a seven-day period during the summer and again during the winter.
Alls var 219 einstaklingum boðin þátttaka í þessari rannsókn og fengu þeir hreyfimæla til þess að vera með á hægri mjöðm sumar og vetur í sjö daga samfleytt.