“…Recently, many studies have been conducted on the elderly [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. In particular, many studies on the prediction and detection of falls have been reported, since a single fall can cause serious injuries in the elderly [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ].…”