“…Programs ranged from four weeks 38 to one year 26 in duration. Five programs did not describe specific program lengths 34,40,53,54,64,71 . Most programs included a combination of aerobic and resistance exercise (62%) 24, 25, 27, 31, 34-36, 39, 40, 43-48, 50, 52-63, 67-71, 73, 74, 76, 78 , while others described only resistance training 26,41,65,77 , or aerobic exercise 30,37,72 .…”