Posture plays a significant role in physical activity as it affects overall performance and prevents injuries. Maintaining optimal alignment during exercises ensures that the body's muscles work efficiently and reduces undue stress on joints. Proper posture also enhances balance and stability, allowing for better movement quality. Moreover, good posture contributes to improved breathing, which is essential for endurance and energy levels. It is crucial for individuals to learn and practice proper alignment techniques, especially during strength training and high-intensity workouts, to maximize benefits while minimizing the risk of injuries.