Resistance bands can enhance a fitness routine by providing versatile and effective strength training options. They create variable resistance, which can help improve strength, flexibility, and coordination. Unlike traditional weights, resistance bands are portable, making workouts convenient in various settings, such as at home or while traveling. They allow for a wide range of exercises that target different muscle groups, including legs, arms, and core. Additionally, bands can cater to different fitness levels by adjusting tension, thus allowing gradual progression. Overall, integrating resistance bands into training enhances overall workout effectiveness.