To minimize the risk of strain or injury while moving his belongings, Derek should follow the ergonomic principle of using his legs, not his back, to lift and move objects.
How does the ergonomic principle work?
Instead of bending at your waist and using your back, you should bend your knees and squat down to reach the object you want to lift. Maintain a straight back posture throughout the lifting process. This helps to distribute the weight evenly along your spine.
Get a firm grip on the object and hold it as close to your body as possible. This minimizes the strain on your back.Use the strength of your leg muscles to lift the object while keeping your back straight. Push through your legs as you stand up.
By following these ergonomic principles, Derek can significantly reduce the risk of back strain or injury while moving his belongings.