“…In relation to the activities or positions considered in the experiments, lying down and sitting were the most tested positions. Other positions or activities, like standing, walking, moving, or running, were used in a minority of studies [ 2 , 17 , 21 , 61 , 62 , 66 , 67 , 68 , 77 , 79 , 81 , 91 , 94 , 101 , 102 , 103 , 108 , 110 , 111 , 115 , 118 , 119 , 124 , 129 , 131 , 132 , 135 , 146 , 147 , 148 , 149 , 177 , 178 , 188 , 205 , 214 , 233 , 235 ]. Most of the studies that provided information on activities considered more than one position [ 2 , 6 , 9 , 17 , 21 , 52 , 53 , 61 , 62 , 66 , 67 , 68 ,…”