If you've been to Chisel N Stride on a Saturday morning, you know the moment. Backs against the wall, thighs burning, and the 60 second count down. It looks simple, and it is. But there's a reason it's on our Saturday schedule, and it has a lot to do with your heart.
What is high blood pressure?
Blood pressure is the force of blood pushing against the walls of your arteries as your heart pumps. It's written as two numbers: the top (systolic) number measures the pressure when your heart beats, and the bottom (diastolic) number measures it between beats.
When those numbers stay high over time, your heart and blood vessels have to work harder than they should. US guidelines classify readings of 130/80 mmHg or above as high, while many countries use 140/90 as the threshold. High blood pressure usually has no symptoms, which is why it's often called a silent risk. Left unmanaged, it's linked with heart disease, stroke and kidney problems, so it's worth knowing your numbers.
What causes high blood pressure?
High blood pressure rarely has one cause. It's usually a mix of:
Genetics and family history
Age
Eating too much salt
Being physically inactive
Carrying excess weight
Alcohol and smoking
Poor or short sleep
Ongoing stress
Stress deserves a special mention. Stressful moments trigger the body's fight-or-flight response, which causes short-term spikes in blood pressure. Long-term stress may also nudge pressure up indirectly, because it tends to come with habits that don't help: skipped workouts, late nights, comfort eating and less time outdoors. If your days are long meetings, tight deadlines and hours at a desk, all of these add up.
The encouraging part is that many of these factors are things you can change, and movement is one of the most powerful.
What does the research say about wall sits?
In 2023, researchers published a large review in the British Journal of Sports Medicine (Edwards et al.) that pooled data from 270 randomized trials and around 16,000 people. They compared different types of exercise to see which lowered resting blood pressure the most. The standout result: isometric exercise, where you tense a muscle and hold it without moving, was the most effective type. Within that group, the wall sit (also called the wall squat) ranked first for lowering systolic blood pressure, with average reductions of roughly 8 points systolic and 4 points diastolic in the analysis. These are averages across trials, and individual results vary.
Why might wall sits help?
Researchers are still working out exactly why isometric exercise has this effect, and they've said more research is needed. The leading theories include:
Better blood vessel function: Regular holds may help arteries widen and flex more easily.
Lower resting stress-system activity: Training may calm the part of the nervous system that raises blood pressure.
Less resistance in the arteries: Over time, this means the heart doesn't have to push as hard.
These are plausible explanations, not proven mechanisms, so treat them as the current best thinking rather than the final word.
How to do a wall sit (even at work)
The beauty of the wall sit is that you need no equipment, no gym and no changing. A spare bit of wall in the office, at home or in a corridor will do.
Stand with your back flat against the wall, feet about half a metre out and shoulder-width apart.
Slide down until you're at a comfortable depth, with your hips no lower than your knees.
Keep your back against the wall and your weight through your heels.
Breathe steadily. Never hold your breath, as that can spike blood pressure.
Hold, then stand up slowly.
In many of the trials, people did four holds of two minutes with rests in between, around three times a week. If that sounds like a lot, start with shorter holds of 20 to 30 seconds and build up. Two minutes against an office wall between meetings is a great place to begin.
A note on safety
If you already have high blood pressure, a heart condition or any other medical concern, check with your doctor before starting a new exercise routine. Exercise supports healthy blood pressure, but it doesn't replace medical advice or medication. Wall sits also work best alongside cardio and strength training, not instead of them.
Why Saturday mornings?
Because a simple habit, done consistently and done together, is more likely to stick. We include wall sits in our Saturday mornings so that you can start the weekend building something good for your heart, with our coach there to check your form and a room full of people holding the line with you.
Join us
Whether your goal is better blood pressure, stronger legs or simply a reason to step away from your desk, wall sits are a good place to start. Come and join us on Saturdays at Chisel N Stride in Dubai, and see why this humble exercise earns its place on our schedule.
Reference: Edwards JJ et al. Exercise training and resting blood pressure: a large-scale pairwise and network meta-analysis of randomised controlled trials. British Journal of Sports Medicine, 2023.