Weight loss through combined lifestyle interventions (CLIs) can slow down knee osteoarthritis (OA) progression. However, gender-related factors may influence both the implementation of and participation in CLIs. Therefore, the aims were to identify gender-related facilitators and barriers to CLI implementation among healthcare professionals (HCPs) and uptake and adherence among individuals with early-stage knee OA and overweight or obesity.

Semi-structured interviews were conducted in this qualitative study. Thematic analysis, combining inductive and deductive approaches, was performed according to the Consolidated Framework for Implementation Research (CFIR) domains.

HCPs and individuals with knee OA and overweight or obesity were interviewed in Dutch between December 2023 and May 2024.

16 HCPs who referred or delivered a CLI and 23 individuals with knee OA and overweight or obesity who participated in a CLI were purposively recruited. 16 participants identified themselves as women and 7 as men; no other gender identities were reported.

HCPs experienced resistance to CLIs of both men and women. Additionally, HCPs perceived that women were more open and available to participate in CLIs, tended to prioritise others over themselves and often lacked familial support compared with men. Women valued trust, preferred female HCPs and struggled with self-prioritisation. Men were motivated by female HCPs and participants due to their empathy and interaction. Across men and women, barriers included conflicting HCP advice, work stress, caregiving tasks and lack of discipline, while social environment support was a key facilitator.

Addressing gender-related facilitators and barriers in the design and implementation of the CLI may improve long-term engagement and efficacy in individuals with knee OA and overweight or obesity.

Overview of Medical Research in the Netherlands (OMON), managed by the CCMO: NL75367.078.20

Lifestyle changes—such as adopting healthy nutrition and increasing physical activity—are essential for alleviating symptoms in patients with knee osteoarthritis (OA) and overweight, with weight loss being a key outcome of these changes. Since 2019, healthcare professionals (HCPs) in the Netherlands have been able to refer these patients to a reimbursed combined lifestyle intervention (CLI). This study aims to identify determinants affecting CLI implementation for individuals with knee OA and overweight from both patient and HCP perspectives.

Semistructured interviews were conducted in a qualitative study with 23 individuals with knee OA and overweight and 16 HCPs (general practitioners (GPs) and lifestyle coaches). Interviews were transcribed verbatim and coded independently by two researchers using the updated Consolidated Framework for Implementation Research (CFIR).

Primary care, including GPs and lifestyle coaches from the Greater Rotterdam region in the Netherlands.

23 individuals with knee OA and overweight and 16 HCPs (GPs and lifestyle coaches).

Determinants were explored within four CFIR domains: innovation, outer setting, inner setting and individuals. Key facilitators included recognition of the programme’s potential, strong social support and positive participant–coach relationships. Major barriers involved the absence of an exercise component, financial constraints limiting its inclusion, scepticism among GPs about care quality, limited expertise of lifestyle coaches addressing OA-specific needs and difficulties adapting the programme to participants’ diverse knowledge levels and health literacy.

To improve the implementation of the CLI for patients with knee OA, it is essential to incorporate a tailored exercise component, strengthen lifestyle coaches’ expertise, address financial barriers and build trust among GPs through education and clear communication of programme outcomes. Tailoring the CLI to better meet participant needs is crucial to ensure its long-term effectiveness and sustainability as a treatment for individuals with knee OA and overweight.

Netherlands Trial Registry (NL9355).