A massive new review of exercise studies says one type of workout beats all the others at keeping blood pressure down around the clock.
Quick Take
- A pooled analysis of 31 trials and more than 1,345 people compared aerobic exercise, resistance training, HIIT, yoga, pilates, and more.
- Aerobic exercise, like running, cycling, and brisk walking, showed the clearest and most consistent drop in blood pressure over a full 24-hour stretch.
- Combined aerobic-plus-resistance training produced the biggest average drop in systolic blood pressure in some analyses.
- Earlier medical research backs up the aerobic finding, with multiple studies showing steady blood pressure drops during the day and night.
A Big Pool Of Studies Points To One Clear Winner
Researchers combined data from 31 separate trials covering more than 1,345 people and 67 different workout routines. The list included aerobic training, resistance training, HIIT, planks and wall sits, yoga, pilates, and even recreational sports like beach tennis. Out of all that variety, aerobic exercise stood out. It consistently lowered blood pressure measured over a full day and night, not just right after a workout.
That round-the-clock measurement matters. Doctors use a tool called ambulatory blood pressure monitoring, which checks readings every 20 to 30 minutes for 24 hours straight. It catches what happens at your desk, during dinner, and while you sleep. A single good reading at the doctor’s office does not show that full picture, which is why this kind of long-window data carries more weight with researchers.
Why Steady Cardio Keeps Showing Up As The Top Performer
This is not a one-off finding. A 2021 review in the Journal of the American Heart Association looked at randomized trials and found exercise training cut 24-hour blood pressure by about 5.4 points systolic and 3 points diastolic in people with hypertension, with similar drops during both day and night. Another major review found aerobic workouts lowered ambulatory readings across the board, while resistance training and combined sessions did not show the same statistically reliable effect in that particular analysis.
The pattern likely comes down to how aerobic exercise affects blood vessels. Steady cardio work trains arteries to relax and widen more easily, which lowers resistance to blood flow for hours after you stop moving. Resistance training builds strength and offers its own heart benefits, but the vessel-relaxing effect from sustained cardio appears to stick around longer when measured throughout an entire day.
Where Resistance Training And Combo Workouts Still Earn Credit
Resistance training is not a dud here. Single sessions of weightlifting have been shown to meaningfully lower blood pressure for up to 90 minutes afterward, and some follow-up studies even stretch that benefit into the full 24-hour window. The honest takeaway is that weights help, just with results that show up less consistently across different studies compared to aerobic work.
Combined training, mixing cardio and weights in the same program, gets mixed reviews depending on which study you read. Some trials found combined sessions matched aerobic-only results without adding extra benefit for older adults with hypertension. Other data pooled across trials found combined training produced the single largest average systolic drop of any category tested. The honest summary: cardio reliably works, and adding weights rarely hurts and sometimes helps more.
What This Means For Anyone Watching Their Numbers
None of this means lifting weights or trying a plank challenge is a waste of time. Strength training supports bone health, muscle mass, and metabolism in ways cardio cannot replace. But if blood pressure control is the main goal, the evidence keeps pointing toward putting running, cycling, swimming, or brisk walking at the center of a weekly routine, with resistance work added as a strong supporting player.
Current exercise guidelines already reflect this balance, recommending moderate aerobic activity most days of the week alongside resistance training two or more days a week. That advice has not changed with this new analysis. What has changed is the confidence behind it. With over 1,300 participants and dozens of workout types compared side by side, aerobic exercise earned its reputation as the most dependable tool for keeping blood pressure in check, hour after hour.
For readers managing high blood pressure, the practical move is simple. Lace up the walking shoes, get on the bike, or hit the pool a few times a week, and treat strength training as the reliable backup it has always been.
Sources:
mindbodygreen.com, scielo.br, ahajournals.org, journals.physiology.org
