Interventions to Reduce Sedentary Behaviour in Community-Dwelling Older Adults: A Mixed Method Review

Introduction: Sedentary behaviour has been associated with several deleterious health outcomes and older adults are the fastest-growing and most sedentary group in society. This review aimed to systematically review quantitative and qualitative studies examining interventions to reduce sedentary behaviour in community-dwelling older adults.

Methods: This mixed-method systematic review (PROSPERO registration number: CRD42021264954) considered quantitative articles (randomised-controlled trials (RCTs) and cluster RCTs), qualitative articles (semi-structured interviews and focus groups) and mixed-method studies that explored interventions to reduce sedentary behaviour in community-dwelling older adults. Medline, Embase, Cochrane Central Register of Controlled Trials, Web of Science, Cinahl, SportDiscus and PEDRO were searched from inception to March 2023. Articles were appraised using the Mixed Method Appraisal Tool. Quantitative evidence was meta-analysed, qualitative evidence was thematically synthesised and both were combined in a mixed-method synthesis.

Results: Forty-one studies (15 RCTs, 21 qualitative and 5 mixed-method studies) were included. Interventions were somewhat effective at reducing sedentary time (-29.10 mins/day, 95% CI -51.74, -6.46). Three analytical themes were identified (what sitting means to older adults, expectations of ageing and social influence in older adults). The mixed-method synthesis identified that existing interventions have been limited by a recruited sample that is not representative of the wider population of older adults, and outcome measurement and intervention content that is not consistent with older adults’ priorities.

Conclusions: Future research should focus on inclusive recruitment strategies to recruit underrepresented populations (such as adults aged 75 years and above), incorporate outcome measures that are valued by older adults, and incorporate older adults’ preferences in intervention content.