“…The majority of the interventions (28) were delivered by health care professionals (HCP) [8,9,41,43,50,54,[57][58][59][60]62,65,68,[70][71][72][73], followed by allied health professionals (AHP)/exercise trainers [37,44,46,47,52,55,63,67,75] and peer-supporter or lay people trained to deliver the intervention [45,48,49,56,61]. There was no mention of who delivered the interventions in eight studies [11,35,36,38,53,64,69,74].…”