Resistance bands can be effectively used during workouts by incorporating them for strength training, flexibility, and rehabilitation exercises. They provide variable resistance, which helps in targeting different muscle groups without the need for heavy weights. Bands can be used in various exercises like squats, rows, and shoulder presses, adapting to individual fitness levels. They are also portable, allowing for workouts almost anywhere. Additionally, incorporating resistance bands into a routine can help improve stability and enhance core strength. This versatility makes them a valuable tool in fitness regimens.