Self-efficacy plays a crucial role in maintaining a fitness routine by influencing an individual's confidence in their ability to achieve fitness goals. Higher levels of self-efficacy lead to greater motivation, persistence, and resilience against setbacks. When individuals believe they can succeed, they are more likely to engage in regular exercise, adhere to their routines, and overcome challenges. Additionally, self-efficacy helps individuals set realistic goals and adopt a more proactive approach to managing their health, thereby fostering a sustained commitment to fitness.