Strength training positively affects posture by strengthening the muscles responsible for maintaining proper spinal alignment and stability. A well-designed strength training program targets key areas such as the core, back, and shoulders, which can help counteract the effects of poor posture due to prolonged sitting or sedentary lifestyles. Improved strength and stability in these areas lead to greater balance and function, ultimately reducing the risk of pain and injury. Consistent resistance training promotes long-term postural improvements and enhances overall movement quality.