“…Therefore, using aquatic exercise as a means of cardiac rehabilitation can be beneficial, especially after ischemic heart injury caused by a decreased blood flow (Cider, Schaufelberger, Sunnerhagen, & Andersson, 2003;Cider, Sunnerhagen, Schaufelberger, & Andersson, 2005;Cider et al, 2006;Gabrielsen et al, 2000;Gruner Svealv et al, 2009;Jiang et al, 1994;Meyer & Leblanc, 2008;Mussivand et al, 2008;Tei et al, 1995;Tei & Tanaka, 1996a, 1996b. Over time, the cardiac muscle, as with all aging muscles, takes longer to achieve peak force and has an extended refractory period.…”