1. Introduction Falls are the second leading cause of unintentional injury deaths worldwide. Adults older than 60 suffer the greatest number of fatal falls [1]. The resultant inactivity caused by a fall in older adults often leads to social isolation and increased illnesses associated with inactivity, including infections and deep vein thrombosis. Consequently, a large variety of wearable devices which incorporate fall detection systems have been developed [2,3,4,5].
