Sit in a chair, cross your arms over your chest, and rise to a full standing position as many times as you can in 30 seconds. That is the whole test.
The 30-second chair stand test, developed by California State University researchers Rikli and Jones in 1999, is one of the most widely used ways to gauge lower-body strength and functional independence in older adults. The Centers for Disease Control and Prevention built it into its STEADI initiative, the national fall-prevention program for older adults.
The stakes are the reason clinicians care about a simple chair. In America, an older adult falls every second of every day, and one dies from a fall every 20 minutes.
Benchmarks by age and sex
The normative ranges below come from Rikli and Jones's work with thousands of community-dwelling adults. A score in the "average" band means you fall within the typical range for your age and sex. Below average is treated as elevated fall risk.
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Age | Women (below / average / above) | Men (below / average / above) |
|---|---|---|
60-64 Also read: A high-sugar diet may help ovarian cancer escape treatment, animal study shows | <12 / 12-17 / >17 | <14 / 14-19 / >19 |
65-69 | <11 / 11-16 / >16 Also read: Psychologist reveals questions that may expose narcissistic traits | <12 / 12-18 / >18 |
70-74 | <10 / 10-15 / >15 | <12 / 12-17 / >17 Also read: How many steps per day should you take? The number varies by age |
75-79 | <10 / 10-15 / >15 | <11 / 11-17 / >17 |
80-84 Also read: Taking these medications? Hot weather could put you at greater risk | <9 / 9-14 / >14 | <10 / 10-15 / >15 |
85-89 | <8 / 8-13 / >13 | <8 / 8-14 / >14 |
90-94 | <4 / 4-11 / >11 | <7 / 7-12 / >12 |
The values come from Rikli and Jones's paper in The Journal on Active Aging.
Why the numbers matter
Standing up from a chair is the everyday movement that quietly predicts whether an older adult can live alone, walk to the store, or get off the floor after a fall.
Lower-body power also fades with age in otherwise healthy adults. A 2021 cross-sectional analysis of 557 people in the Journal of Aging and Physical Activity measured sit-to-stand power across the lifespan and found it fell roughly 10 percent per decade between the ages of 50 and 89. Men showed meaningful decline about a decade earlier than women.
A low score is a signal, not a sentence
A score in the "below average" band does not mean decline is fixed. Lower-body strength is one of the most trainable qualities in the body at any age, and you do not need to live in the gym for meaningful returns.
Even two hours a week of strength training captures most of the longevity benefit seen in large cohort studies.
If your score is well below the range for your age, or if you have fallen in the past year, talk to your doctor. A physical therapist can build a program that suits your starting point.
This article is made and published by Jesper Bengtson, who may have used AI in the preparation.