Chair stand: functional leg strength

General information, not medical advice. If you have symptoms, talk to your GP or a physiotherapist.

In short

Gezond Leven advises adults to strengthen muscles and bones at least twice a week, on top of 150 to 300 minutes of moderate-intensity activity.
Standing up from a chair without using your hands is a simple leg exercise; Gezond Leven shows strength moves from a sturdy chair.
In one study of 628 community-dwelling older adults (ages 60 to 93), power estimated from a 30-second chair-stand test correlated with leg power measured on a machine.
Start with sets of 8 to 12 repetitions, progress slowly, and stop if you feel pain or dizziness.

A lot of everyday strength sits in moves you already make: standing up from a chair, picking something off the floor, taking the stairs. Repeating that move on purpose trains the legs without a gym membership. It is not a full workout on its own, but a useful building block next to walking and other strength work.

What the guidelines say about muscle strengthening

Flanders’ Gezond Leven advises adults aged 18 to 64 to do at least 150 to 300 minutes a week of moderate-intensity activity, or 75 to 150 minutes of vigorous intensity, or a mix. On top of that come two days a week of activities that strengthen large muscles and bones, such as taking the stairs, carrying shopping or lifting weights. Long sitting spells are best broken regularly, every 20 to 30 minutes if you can.

That line follows the World Health Organization (WHO) 2020 physical activity guideline: limit sitting and replace it with movement of any intensity, 150 to 300 minutes moderate or 75 to 150 minutes vigorous per week, and muscle-strengthening work on at least two days. For older adults the WHO adds multicomponent training with functional balance and strength on three or more days.

On its strength-exercise page, Gezond Leven writes that you can do sets of 8 to 12 repetitions from a sturdy chair or armchair, at home or at work. That fits next to a short morning routine or sitting breaks at your desk.

How to stand up from a chair safely

Pick a sturdy chair without wheels, preferably with the back against a wall. Sit upright, feet flat, about shoulder-width apart.
Cross your arms on your chest or keep them by your sides so you do not push on the armrests. Breathe out as you stand fully, then sit back down in a controlled way.
Do one set of 8 to 12 repetitions. If that feels easy, build to two or three sets with a short rest between them. Gezond Leven suggests working to muscle fatigue without forcing the technique.
If it feels too hard: use one hand for support first, or choose a higher chair. If it feels too light: slow the descent, or combine with lunges at home or a simple home strength plan.

A 30-second chair-stand test (stand and sit as many times as you can in 30 seconds) is sometimes used as a measure of leg power. In a 2020 study of 628 older adults in Copenhagen, researchers from Denmark and Spain found a strong association (correlation of 0.75) between that estimated chair power and leg power on a machine. It was a single cohort study; funding came from public research grants (Spanish education ministry and European FEDER/CIBERFES funds). That makes the chair move interesting as a daily habit, not as a medical diagnosis.

What to keep in mind

Stop if you feel sharp pain, dizziness or lose your balance. After surgery, with serious joint problems, or if you have fallen before, ask your GP or physiotherapist first. Standing from a chair does not replace balance work or grip training; those themes are covered separately, for example in grip strength. A short five-minute morning movement can open the day; this chair exercise fits later between two tasks.