Subtheme	Study	Direct participant data	Author description of data
Social identity	Hendry 2006	"They're (gyms) mostly young people that go to those aren't they? I think I'd feel out of place…They don't want to be dragged down by somebody that's not up to their standard I would think." p.563. "I imagined…all these fit people you know, bodies like Adonis…I thought that I would be old, that I would show myself up, but in fact it wasn't like that at all…the people who were sort of totally 100% fit were very few and far between." p.563. "I imagined the people at the gym would all be young and fit and that I would feel out of place but it wasn't like that at all." "The gym is safer for women than going out walking alone."	Data not reported.
	Fisken 2016	"I would love to see something for the elderly people, to be active and keep reasonably fit. There's very little around for the older people. They don't want to know the older people." "It's got to be paced at our age range." "They need to have something for the older people, keep the younger ones different." "Well I think it's important that you go, even if it's on land, that you go with people relative to your own age and that you're all at the same level 'cause I mean if you go with a 30‐year old…we can't keep up with that, as much as we'd like to. Whereas if you go and you're all this age, you encourage each other." p.14.	1 of the primary reasons given for discontinuing an aqua‐based exercise programme was that participants felt the class they had attended was not suitable for their age…Participants in the study felt strongly that they should be attending classes suitable for their age. p.14. Training with people of a comparable age was also considered important in the study. Similarly, older adults who performed land‐based resistance training identified this as an important facilitator for exercise. Attending age or ability (or both) appropriate classes may have increased adherence to aqua‐based exercise among participants in the study. p.15.