Methods	Sampling frame: from RCT (no other details reported). Data collection: focus groups. Data analysis: The General Inductive Approach.
Stated aim of study	To investigate the effects of a 12‐week aqua‐aerobics programme on falls risk and physical function in older adults with lower extremity osteoarthritis in New Zealand.
Details of participants	Country: New Zealand. Sample number: 17. Age: ≥ 65 years. Gender: 13 women. SES: not stated. Ethnicity: not stated Occupation/employment: not stated.
Details of exercise programme	Provider(s): water exercise instructor. Training: yes. Setting: community; local municipal swimming pool. Content: group water‐based exercise programme that included warm‐up and warm‐down exercises and a series of progressively more challenging balance exercises. Length/intensity: twice weekly for 12 weeks.
Notes
Quality appraisal
Questions used to judge the dependability and credibility of studies		Review authors' judgements
Were steps taken to increase rigour in sampling?		Yes, several steps were taken.
Were steps taken to increase rigour in data collection?		Yes, several steps were taken.
Were steps taken to increase rigour in data analysis?		Yes, several steps were taken.
Were the findings of the study grounded/supported by data?		Fairly well grounded/supported.
What was the breadth and depth of findings?		Good/fair depth but limited breadth.
To what extent does the study privilege the perspectives and experiences of older people with osteoarthritis of the knee or hip?		Somewhat.
Overall dependability and credibility of findings		Review authors' judgements
Dependability of findings		Medium.
Credibility of findings		High.