“…Tai Chi Chih is a set of movements focused on generation of an intrinsic energy called Chi. It is effective in reducing stress; improving balance, physical functioning, mental health; and general well-being (Detert, Derosia, Caravella, & Duquette, 2007;Fontana et al, 2000;Irwin, Pike, Cole, & Oxman, 2003;Schaller, 1996). In these studies, the duration of exercise was either 1 hr or 45 min once a week for 10 to 15 weeks.…”