One of the Largest Pain Studies Ever Assembled

The study, led by Dr. Ben Singh with senior researcher Professor Carol Maher, is an umbrella review and meta-meta-analysis. That means it did not run new trials. Instead, it pooled the results of earlier systematic reviews, each of which had already combined many trials. The search covered peer-reviewed research through August 2024, and the paper was published in PAIN Reports in 2026, with Adelaide University announcing it on Sept. 23.

The pain conditions spanned musculoskeletal problems such as osteoarthritis, neurological conditions, inflammatory diseases, migraine and cancer-related pain. “Our study found that exercise was associated with substantial reductions in acute and chronic pain across all forms of exercise,” Singh said. The team describes it as the most comprehensive synthesis of exercise for pain relief to date.

Why a Study This Big Matters

Individual exercise trials for pain are often small, sometimes only a few dozen people. Results swing from trial to trial, which makes it hard for doctors to give firm advice. By pooling more than 2,700 trials, the review smooths out that noise and lets researchers ask questions no single trial could answer, such as whether intensity or weekly dose changes the result.

How Big Is a 1.1-Point Drop in Pain?

Pain is usually measured on a scale where 0 means no pain and 10 means the worst imaginable. The review found an average drop of about 1.1 points compared with control groups, equal to a standardized mean difference of 0.59, which researchers generally treat as a moderate effect. For migraine and headache, the effect was larger, with a standardized difference of 1.13.

The researchers reported that exercise’s effect was roughly 60% larger than the average relief reported for commonly used pain medications in separate chronic pain trials. That implies a medicine effect of about 0.7 points. But this was not a head-to-head comparison. The medicine figures came from different trials, different patients and different conditions, so the finding does not show that exercise beats any specific drug for any individual.

Why Moving Can Quiet Pain

Singh pointed to several mechanisms. Exercise triggers the release of endorphins and serotonin, natural chemicals that can reduce pain intensity and raise pain tolerance. It can calm inflammation. It appears to change how the brain processes pain signals. And it improves mood, which matters because pain and low mood tend to feed each other. These are the researchers’ explanations, drawn from wider research, rather than findings tested within this review.

Who Lives With Pain in America

The findings land in a country where pain is common. According to the CDC’s National Center for Health Statistics, 24.3% of U.S. adults had chronic pain in 2023, meaning pain on most days or every day in the past three months. Some 8.5% had high-impact chronic pain that limited daily life or work. In 2019 the figures were 20.4% and 7.4%, though the CDC did not test whether that change was statistically significant.

Where you live matters too. The CDC found chronic pain was most common in rural, or nonmetropolitan, areas, at 31.4%, compared with 20.5% in large central cities. Rural residents often have fewer pain specialists and physical therapists nearby, which makes simple, home-based exercise especially relevant.

Pain Differs Across Groups

The CDC also found differences by race and ethnicity, from 30.7% among American Indian and Alaska Native adults to 11.8% among Asian adults. Among all adults with chronic pain, 34.9% had the high-impact kind, meaning roughly one in three people with ongoing pain find it limits their daily life.

The Surprise: Less Was More

The finding drawing the most attention is about dose. “More exercise wasn’t necessarily better,” Singh said. Programs at lower intensity produced larger average pain reductions than moderate-to-vigorous ones. Programs of under 120 minutes a week did better than those of two hours or more. And programs shorter than 12 weeks showed larger effects than longer ones.

This matters for people in pain, who often find long or intense workouts unrealistic. Singh said the results suggest “people may not need to exercise harder or for longer to experience meaningful benefits.” The researchers caution that longer trials may look weaker partly because people stop following the program once structured support ends, so “shorter is better” should not be read as “stop after 12 weeks.”

Every Type of Exercise Helped

Aerobic exercise, resistance training, yoga, Pilates and tai chi were all linked to meaningful pain reductions. Dance showed the largest estimated effect, followed by Pilates and tai chi, but the dance result came from a single systematic review on fibromyalgia, so it is less certain. The practical message is to pick something you can do regularly.

The starter doses in the table are indicative suggestions that stay under the 120-minute weekly range linked to the best results. They are not prescriptions from the study, which did not set specific doses for each type.

Turning the Findings Into a Plan

Singh noted that exercise is rarely prescribed “with the same precision as medication.” The authors want doctors to name the type, intensity and duration rather than simply saying “stay active.” Until that becomes routine, you can bring that precision to your own plan. Talk to your doctor or a physical therapist first, especially if your pain is new, severe, unexplained or follows an injury.

1. Weeks 1 to 260 min a weekThree gentle 20-minute sessions. Note your pain score before and after.
2. Weeks 3 to 580 to 90 minAdd 5 to 10 minutes per session if pain stays the same or eases.
3. Weeks 6 to 990 to 110 minTry a second type, such as tai chi or yoga, for variety.
4. Weeks 10 to 12Under 120 minReview your pain log and agree next steps with your clinician.

Indicative 12-week plan built around the study’s under-120-minute and under-12-week findings. Not a medical prescription.

1. Get the right diagnosis firstNew, severe or unexplained pain needs a medical check before you start exercising.
2. Choose an activity you enjoyAll six exercise types helped, so pick one you will actually repeat.
3. Start gentleLower intensity showed larger average benefits. You should be able to talk comfortably.
4. Keep weekly time under 2 hours at firstPrograms below 120 minutes a week performed best on average.
5. Track your pain scoreRate pain 0 to 10 each week. A 1-point drop is a realistic early target.
6. Ease off sharp pain, not mild sorenessMild aching is common; sharp or worsening pain means stop and seek advice.

Making It Stick After 12 Weeks

Because longer trials may have suffered from people dropping out, the goal after the first three months is not to stop but to keep going in a way that feels sustainable. Many people find group classes, a walking partner or a fixed weekly schedule help. If progress stalls, changing the type of exercise, rather than simply adding more, may be the smarter move.

• Under 120 minutes a weekBest-performing range in the review
• Gentle intensityAble to talk comfortably
• 12-week first blockThen review with your clinician
• Weekly 0 to 10 pain scoreTarget about a 1-point drop
• Any of 6 exercise typesAerobic, strength, yoga, Pilates, tai chi, dance
• Keep medicines as prescribedChange only with medical advice