Setting realistic fitness goals is crucial for success because it fosters achievable targets that increase motivation. When goals are specific, measurable, attainable, relevant, and time-bound (SMART), they help individuals maintain focus and commitment. Realistic goals enable individuals to track progress effectively, preventing feelings of overwhelm and discouragement. This approach encourages a positive mindset, making it more likely to celebrate small victories along the way. Ultimately, setting attainable goals leads to a sense of achievement, reinforcing dedication to long-term fitness efforts.