“…The second type is use of Fitts’ law in measuring the performance of people with various cervical spine problems and other such difficulties. This category includes the work of Descarreaux, Passmore, and Cantin (2010); Marchand, Cantin, Murphy, Stern, and Descarreaux (2014); and Passmore and colleagues (Passmore & Burke, 2007; Passmore, Burke, Good, Lyon, & Dunn, 2010). The third form of experiment is of a very practical nature whereby head movements have been studied for specific device operation (van der Heijden et al, 1997; Pereira et al, 2009).…”