Does exercise lower blood pressure?
Yes, by a useful amount. In the 2017 US guideline’s table, brisk activity for 90 to 150 minutes a week lowers systolic pressure (the top number) by about 5 to 8 points (mmHg) if you have high blood pressure, and 2 to 4 if you don’t. Lifting lowers it by about 4 and 2, and the drop shows within weeks.
People with high blood pressure are usually told to exercise, but rarely told how much it does, so it sounds like generic advice next to a pill. The numbers are specific. For people with high blood pressure, regular brisk walking lowers systolic pressure by about as much as cutting 1,000 mg of sodium a day, and it starts working on the day you do it.
What we’d do
Walk briskly for 30 minutes on most days and lift twice a week. If your doctor agrees, add wall sits or hand-grip holds, which had the biggest effect in the pooled trials. Measure your pressure at home for a week before you start and again after 8 weeks, so you can see your own change. Never change a blood pressure medicine on your own.
How much each kind lowers it
These are the sizes from the non-drug table in the 2017 US guideline, for systolic pressure:
| Exercise | The dose in the table | With high blood pressure | Without |
|---|---|---|---|
| Aerobic, like brisk walking or cycling | 90 to 150 minutes a week | About 5 to 8 points | About 2 to 4 |
| Lifting weights | 90 to 150 minutes a week, 6 exercises, 3 sets of 10 | About 4 points | About 2 |
| Isometric holds, like hand grips | Four 2-minute holds, 3 days a week, for 8 to 10 weeks | About 5 points | About 4 |
For comparison, the same table puts eating less salt at about 5 to 6 points with high blood pressure. You can’t add the rows together, since two changes at once usually do less than their sum, but combining a few still gets you further than one.
What the biggest review found
In 2023, researchers pooled 270 randomized trials with 15,827 people, every trial lasting at least 2 weeks with a group that didn’t exercise. Aerobic training lowered resting pressure by about 4.5 points systolic and 2.5 diastolic (the bottom number). Isometric exercise, like wall sits and hand grips, had the biggest effect of any kind. The isometric trials were smaller, so the size of that effect is less certain than the aerobic one.
The 2018 US guideline’s evidence review also found that a single session lowers blood pressure for a while afterward, on top of the longer-term drop. bloodpressure.guide has the whole table, with diet, salt, weight and alcohol, in how to lower your blood pressure, and how to test what worked for you in measuring at home.
Who should check first?
None of this needs a gym. How to exercise at home with no equipment covers the walks and the strength days, and bloodpressure.guide sizes how far lifestyle can take your number in lifestyle or medicine.
If you’ve had a recent heart attack or other cardiac event, get cleared before you start. Isometric holds aren’t for people with heart failure, unstable heart disease, a recent cardiac event or stroke, or chest pain on exertion until a doctor says they’re fine. Keep breathing through every lift and hold. If your pressure is 180/120 or higher, or you have chest pain, shortness of breath or trouble speaking, see when is blood pressure an emergency?
4 sources
- Whelton PK and others, 2017 ACC/AHA high blood pressure guideline, nonpharmacological interventions table, as reproduced in the HSHS clinical guideline, 2019hshs.org
- Edwards JJ and others, Exercise training and resting blood pressure: a large-scale pairwise and network meta-analysis of randomised controlled trials, British Journal of Sports Medicine, 2023europepmc.org
- US Office of Disease Prevention and Health Promotion, Top 10 things to know about the second edition of the Physical Activity Guidelines for Americansodphp.health.gov
- bloodpressure.guide, How to lower your blood pressurebloodpressure.guide
