It may seem counterintuitive, but weight lifting and strengthening exercises can actually help reduce back pain. However, the point isn't to bulk up your muscles like a body builder—it's to develop strength, especially back strength. The muscles in your back help keep your spine moving as it should. If you have a weak back or weak abdominal muscles, you could be more prone to back strain.
There are many other reasons why weight lifting and strengthening exercises are beneficial, but the most important reasons are that they:
decrease the likelihood of future back injuries
help stabilize your spine, allowing your spine to move as it should and also making it easier to maintain proper posture
increase muscle tone
teach you good body mechanics
help build bone—a significant benefit for people who have osteoporosis or are at risk for developing it
For the best results, you'll need to incorporate a mixture of weight lifting (using actual weights and exercise machines) and strengthening exercises (using your own body weight as resistance) to maintain a healthy back.
Dr. Datta knows many easy exercises that can be done at home or at the gym that will help alleviate any sort of back pain. Just ask!