Lifting Weights With Back Pain: What NIH Says About Exercise

NIH advises against bed rest for back pain: limit the movements that hurt and gradually increase activity as tolerated. The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) calls back pain one of the most common medical problems in the United States and says almost everyone has it at some point. Back pain has many causes, so a provider should assess yours.

1. First: when back pain needs a doctor

NIAMS says to see a doctor if your pain does not improve after a few weeks, or if back pain comes with any of these:

• Numbness and tingling
• Severe pain that does not improve with medication
• Back pain after a fall or injury
• Trouble urinating
• Weakness, pain, or numbness in your legs
• Fever
• Weight loss you did not intend

These are not signs to train through. Get checked first.

2. How long back pain lasts

NIAMS describes three types by duration:

The good news: NIAMS says most people find relief within 6 weeks.

3. Why fitness matters

Among the risk factors NIAMS lists, two speak directly to beginners:

• Fitness level. Back pain is more common among people who are not physically fit, and NIAMS notes that weak back and stomach muscles may not properly support the spine.
• Overdoing it. Back pain is also more likely if you exercise too strenuously after being inactive for a while.

So strength helps, but a sudden jump in training does not. Both points argue for starting light and building gradually.

NIAMS also lists sprains and strains among the mechanical causes of back pain, noting that a back sprain often comes from twisting or lifting improperly.

4. What NIH says about exercise and back pain

From NIAMS's treatment and self-care guidance:

• Avoid bed rest. Instead, limit the activities or exercises that cause pain, and gradually increase physical activity as tolerated.
• Strengthen the supporting muscles. Physical therapy can help strengthen the muscles that support the back, improving mobility, posture, and positioning, and NIAMS says strengthening exercises can also help decrease pain.
• Check first. NIAMS advises checking with your doctor or physical therapist before starting any exercise routine, and adding exercises gradually; there may be certain movements you should avoid.

For prevention, NIAMS recommends regular exercise that keeps your back muscles strong, plus exercise that builds balance and strength to reduce the risk of falls. It names tai chi, yoga, and any weight-bearing exercise that challenges your balance.

5. Lifting technique, in NIH's words

NIAMS's prevention advice includes a lifting rule that applies in the gym and at home: avoid lifting heavy items when possible, and when you do lift something heavy, use your leg and abdominal muscles instead of your back. It also suggests making a few extra trips rather than carrying too much at once.

NIAMS also says to avoid any activity that causes or increases pain, and to move your body properly during daily activities involving heavy lifting, pushing, or pulling. Ask your doctor or physical therapist which exercises suit your back.

6. Everyday habits that help

NIAMS's self-care list goes beyond the gym:

• Move during long sitting. Get up, move around, and change positions often.
• Shoes: comfortable, with a low heel.
• Long drives: add support behind your back and stop often to walk around.
• Sleep: on your side with a small pillow between your knees, or on your back with a pillow under your knees; try to avoid sleeping on your stomach.
• Posture: avoid slouching and support your back when sitting.
• Diet and weight: enough calcium and vitamin D for a strong spine, and a healthy weight to reduce strain.

7. Heat or cold?

NIAMS says cold packs can help relieve some back pain, and hot packs increase blood flow and promote healing in the muscles and tissues of the back.

8. Key takeaways

• See a doctor if back pain lasts more than a few weeks or comes with numbness, leg weakness, fever, bladder trouble, or follows a fall.
• NIAMS says most people find relief within 6 weeks.
• Avoid bed rest; limit painful movements and increase activity gradually as tolerated.
• Strengthening exercises can help decrease back pain, ideally planned with a doctor or physical therapist.
• When lifting heavy objects, use your legs and abdominal muscles, not your back.

This article is general information, not medical advice. Talk with a doctor or physical therapist before starting a new exercise routine, especially if you have a health condition or injury.