Self-efficacy plays a crucial role in fitness motivation as it reflects an individual's belief in their ability to achieve specific exercise goals. A strong sense of self-efficacy can enhance commitment, persistence, and resilience during challenging times. When individuals believe they can successfully navigate obstacles and achieve their fitness objectives, they are more likely to engage in regular physical activity. Setting attainable goals and celebrating small successes can help boost self-efficacy, leading to a more sustainable fitness journey.