Leg strength refers to the ability of the muscles in the legs to exert force. This strength is crucial for various activities such as walking, running, jumping, and climbing. Key muscles involved include the quadriceps, hamstrings, calves, and glutes. Strong legs contribute to overall physical performance and stability. Improving leg strength can be achieved through exercises like squats, lunges, and leg presses. These activities target the major muscle groups in the legs, enhancing endurance and power. Regular leg training can also help prevent injuries and improve balance, making it essential for athletes and active individuals alike.