Preventing injuries during a fitness routine involves several key strategies. First, incorporating a proper warm-up and cool-down can prepare the body for exercise and aid recovery. Gradually increasing the intensity and duration of workouts helps avoid overuse injuries. Strength training also plays a crucial role in balancing muscle strength and supporting joints. Using appropriate and well-fitted equipment is essential, along with maintaining proper form during exercises. Lastly, listening to one's body and allowing for adequate rest and recovery can significantly reduce the risk of injury.