Respuesta :
a. Bend at the knees, keep his back straight and lift with his legs.
Answer
Bend at the knees, keep his back straight and lift with his legs
Explanation
Proper lifting procedures helps one to be safe and prevents back injuries when lifting something especially a heavy one. Safe lifting techniques are simple but effective.One needs to Stand close to the object, with your feet shoulder-width apart and your toes naturally pointed outward. Squat down next to the object by bending at your knees and hips It is advisable not to lift from a standing position with your waist bent or your knees locked.
