Long-Term Tennis Participation and Self-Efficacy in Older South Korean Male Adults: A Qualitative Study

Background: Self-efficacy is an important psychological factor for healthy aging, but how long-term sport participation builds self-efficacy in older adults is not fully understood. This study explored how playing tennis for many years shapes self-efficacy in older South Korean adults and identified the key mechanisms. Methods: In-depth interviews were conducted with 11 older male adults (aged 65–75 years) who had played tennis for 15–25 years and remained active at least twice per week. Participants were recruited from tennis clubs in South Korea through purposive sampling. Data were analyzed using Braun and Clarke’s reflexive thematic analysis. Results: Four themes emerged. (1) Mastery Through Progressive Achievement: gradual skill development and competitive success were perceived to support confidence that extended beyond the tennis court; (2) Social Embeddedness and Collective Efficacy: peer encouragement and observing similar others succeed were described as supporting participants’ belief in their own capabilities; (3) Physical Vitality as Confidence Foundation: sustained physical fitness and functional independence derived from tennis participation were perceived to support broader self-confidence in daily life; and (4) Mental Resilience and Cognitive Engagement: the strategic demands of tennis and its stress-relieving effects may contribute to psychological resilience and a continued sense of purpose in later life. Conclusions: Long-term tennis participation was perceived to support self-efficacy through multiple interconnected pathways consistent with Bandura’s social cognitive theory. These findings suggest that structured, community-based tennis programs may contribute to supporting psychological well-being and promoting healthy aging in rapidly aging societies.