What general principles prevent injury to the musculoskeletal systems and nervous systems?

Practice proper posture by maintaining 3 normal curves of back, stretch before and after activities, use the largest joints and muscles, avoid static positions for long periods, move around every 20-30 minutes, change positions and stop when you're in pain, use wrist and splint guards, and cope with stress.

*Practice proper posture by maintaining the three normal curves of the back

*Practice proper posture by maintaining the three normal curves of the back

*Warm up and stretch before and after activities that are repetitive, static (lacking movement), or prolonged.

*Use the largest joints and muscles to do the work

*Avoid static positions for prolonged periods. Muscles fatigue faster when they are held in one position. Take a break and move around every 20 to 30 minutes when it is necessary to maintain a sustained position.

*Change positions or stop whenever activities cause pain.

*Seek treatment early if problems arise.

*Learn to cope with psychological stress. People who are worried, afraid, or angry often carry their tension in their back, neck, or shoulder muscles. This tension reduces blood circulation in the affected tissues