Hi..., You husband may be able to avoid back pain or prevent its recurrence by improving your physical condition and learning and practicing proper body mechanics.
Exercise. Regular low-impact aerobic activities — those that don't strain or jolt your back — can increase strength and endurance in your back and allow your muscles to function better...
Maintain a healthy weight. Being overweight strains back muscles. If you're overweight, trimming down can prevent back pain.
Use proper body mechanics:
Stand smart. Maintain a neutral pelvic position. If you must stand for long periods, place one foot on a low footstool to take some of the load off your lower back. Alternate feet. Good posture can reduce the stress on back muscles.