This Simple Wall Exercise Can Lower Blood Pressure. But How Often Do You Need to Do It?

Wall squats can significantly lower blood pressure, but the benefits fade.

If you want to lower your blood pressure with exercise, you don’t need a treadmill, expensive gym equipment, or even much space. A wall and a willingness to feel your thighs burn might be enough.

The exercise is called a wall sit, and research suggests it can produce surprisingly large reductions in resting blood pressure. But there’s a catch: how often do you need to do it to keep those benefits?

A new clinical trial offers an answer. Even just one session a week may help preserve some of the improvement, but three sessions deliver much better results. And stopping altogether can allow the gains to fade within weeks.

Why standing still can lower blood pressure

The best exercises are often simple in essence; and a wall sit is no exception.

You just lean your back against a wall and slide down into a seated position as if you’re sitting on an invisible chair. That’s it. You just hold the position, holding your body relatively still. The odds are it’ll feel easy in the first few seconds, and then you’ll feel your thighs burning up.

This belongs to a category of exercise called isometric training. Unlike cycling or jogging, where muscles repeatedly shorten and lengthen, isometric exercises require muscles to generate force while remaining at roughly the same length. Wall sits, planks, and sustained handgrip exercises all fall into this category.

These isometric exercises, it turns out, are really good for you.

A 2023 analysis published in the British Journal of Sports Medicine examined 270 clinical trials involving more than 15,000 people. It found that isometric training produced average blood pressure reductions of about 8.2 mmHg systolic and 4 mmHg diastolic, outperforming other exercise categories in the analysis.

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A healthy reading is around 120/80 mmHg, while 140/90 mmHg or higher is generally considered high in a clinical setting. Even modest reductions matter. A large analysis found that lowering systolic pressure by just 5 mmHg through medication was associated with a 10% reduction in the risk of major cardiovascular events, including heart attacks and strokes.

All this was already known. The question is frequency. How often would you need to wall sit, for instance, to reap optimal benefits?

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An eight-week test with 100 volunteers

To answer that question, researchers led by Harry Swift at Canterbury Christ Church University recruited 100 adults who weren’t meeting recommended physical activity levels.

The participants were 37 years old on average and had normal to high-normal systolic blood pressure, ranging from 120 to 140 mmHg. None were taking blood pressure medication.

Researchers randomly assigned 80 participants to exercise groups and 20 to a control group.

Everyone in the exercise groups began with the same routine: three wall-squat sessions per week for four weeks. Each session involved four sustained holds, separated by two minutes of seated recovery. Researchers adjusted the difficulty of the squats to achieve individually prescribed heart-rate targets.

After four weeks, the results were striking.

Compared with the control group, the exercising participants experienced an average reduction of 9.45 mmHg in systolic blood pressure and 5.47 mmHg in diastolic pressure.

The researchers then changed the schedule.

One group continued exercising three times weekly. Another reduced its training to twice a week. A third dropped to one session. The fourth stopped completely.

The researchers measured everyone again at the end of week eight to see the differences.

Three sessions beat one. But one still helped

The differences were pretty clear.

Participants who continued three weekly sessions achieved the largest improvement. Their average systolic blood pressure fell from 131.2 mmHg at the beginning of the study to 117.5 mmHg at week eight — a reduction of approximately 13.7 mmHg.

Those exercising twice weekly finished with a reduction of about 7 mmHg from their own baseline. The once-weekly group achieved a similar reduction of approximately 6.6 mmHg. Both groups still had significantly lower systolic blood pressure than the control group.

However, there was an important detail hiding in those averages. During the second four weeks, blood pressure began creeping upwards in the groups that reduced their exercise frequency. In other words, one or two weekly sessions helped preserve part of the earlier improvement, but did not fully maintain it.

Those who stopped exercising experienced an even greater reversal. By week eight, their blood pressure was no longer statistically distinguishable from that of the control group.

The findings suggest that one weekly session may be a useful fallback when a busy schedule gets in the way, rather than a complete substitute for regular training.

How to make wall sits part of your routine

The good news is that wall sits require no special equipment, and you can do them at home. But getting the position and intensity right matters.

Here’s how to get started:

1. Find a sturdy wall. Stand with your back against it and your feet about shoulder-width apart, slightly in front of you.
2. Slide into position. Slowly bend your knees as though sitting in an invisible chair. Keep your back against the wall, your feet flat, and your knees roughly above your ankles. Aim for thighs parallel to the floor if you can manage it comfortably.
3. Hold and breathe. Maintain the position without holding your breath. If you’re a beginner, try a shorter, less demanding hold rather than forcing yourself into a deep squat.
4. Rest and repeat. Research-based protocols typically use four two-minute holds, separated by two minutes of rest. Build towards this gradually instead of attempting the full routine immediately.

Finally, don’t treat wall sits as a replacement for other exercise. The American Heart Association recommends at least 150 minutes of moderate aerobic activity weekly, alongside appropriate strength-building activities.

It doesn’t have to be perfect. Every bit helps.

The study was published on September 29, 2026, in BMJ Open Sport & Exercise Medicine.