前立腺がん罹患経験のあるマイノリティ民族男性における身体活動、信頼、および研究参加：質的研究

Men from minority ethnic backgrounds experience a disproportionate burden of prostate cancer yet remain underrepresented in physical activity-related and psycho-oncology research. This study aimed to explore (1) how men from diverse ethnic backgrounds experience and interpret physical activity (PA) following prostate cancer, and (2) how psychological, cultural, and structural factors influence their engagement with PA and research.

Semi-structured interviews were conducted with ten men from African, Caribbean, Asian, and Middle Eastern backgrounds living with prostate cancer. Sampling continued until thematic saturation was achieved, consistent with qualitative methodological guidance. Data was analysed using Braun and Clarke's reflexive thematic analysis. A patient-informed topic guide and culturally reflexive approach were used to ensure contextual sensitivity and psychological safety.

Six interconnected themes were identified: (1) PA as Mental Renewal, Identity, and Connection; (2) Cancer-Related Disruption and Fragmented PA Support; (3) Barriers to Participation in PA and Research; (4) Trust, Representation, and Inclusive Research Practices; (5) Cultural Stigma, Silence, and Shifting Perspectives; and (6) Altruism, Legacy, and Motivation to Engage. PA was described as psychologically meaningful, supporting coping, identity, and continuity, but was frequently disrupted by inconsistent guidance and structural barriers. Trust, representation, and relational communication were central to research engagement. Findings informed the development of a Culturally Sensitive Recruitment Framework.

PA engagement and research participation among minority ethnic men with prostate cancer are shaped by intersecting psychological, cultural, and structural factors. Culturally sensitive, relationship-centred approaches may strengthen integrated psycho-oncology care and promote more equitable research participation.