Grab a light dumbbell, sit up straight, and count how many biceps curls you can complete in half a minute. That is the 30-second arm curl test, the most widely used peer-reviewed benchmark of upper-body strength in older adults.
The test comes from the Senior Fitness Test developed by researchers Roberta Rikli and Jessie Jones. Their 1999 normative study covered 7,183 community-dwelling adults aged 60 to 94, tested at 267 sites across 21 US states.
Updated percentile tables were published in the second edition of the Senior Fitness Test Manual in 2013, and the test protocol and norm ranges are still the reference standard today.
How your score compares by age
Men use an 8-pound dumbbell; women use a 5-pound dumbbell. The "average" range covers the middle half of adults for each age band, roughly the 25th to 75th percentile. Scoring above it puts you in the top quarter for your age.
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Age | Men (below average / average / above average) | Women (below average / average / above average) |
|---|---|---|
60-64 Also read: A vitamin D-like drug may have found a way past pancreatic cancer's main defenses | <16 / 16-22 / >22 | <13 / 13-19 / >19 |
65-69 | <15 / 15-21 / >21 Also read: What your mouth and gums can quietly reveal about your heart and blood sugar | <12 / 12-18 / >18 |
70-74 | <14 / 14-21 / >21 | <12 / 12-17 / >17 Also read: 5 warning signs of melanoma on your skin - and when to see a doctor |
75-79 | <13 / 13-19 / >19 | <11 / 11-17 / >17 |
80-84 Also read: How much turmeric is too much? What high-dose curcumin can do to your liver | <13 / 13-19 / >19 | <10 / 10-16 / >16 |
85-89 | <11 / 11-17 / >17 | <10 / 10-15 / >15 |
90-94 | <10 / 10-14 / >14 | <8 / 8-13 / >13 |
How to perform the test
Sit upright on a straight-backed chair with your feet flat on the floor. Hold the dumbbell in your dominant hand with a handshake grip, arm hanging fully extended at your side.
Curl the weight up through the full range of motion, gradually rotating your palm to face upward. Return to full extension in the handshake grip, keeping your upper arm still against your torso throughout.
Count how many complete repetitions you can perform in 30 seconds. A partial rep at the end counts if the dumbbell has passed the halfway point on the way up.
Why upper-body strength matters after 60
Functional fitness is the physical capacity to perform daily activities safely, independently, and without excessive fatigue, according to a systematic review published in March 2024 in Frontiers in Public Health. The 30-second arm curl remains the reference upper-body test in that field.
Weaker arms carry a measurable cost. A 2021 study in Archives of Public Health followed 665 community-dwelling adults aged 65 and over.
It found that adults with low arm curl capacity were nearly two and a half times more likely to be in the higher fall-risk group than those with the strongest arms.
The same paper reported that scoring 20 or more repetitions on the 30-second arm curl test was associated with a lower risk of falling.
What the number means for daily life
Upper-body strength is what lets you lift a grandchild, carry groceries up a flight of stairs, or push yourself back up if you land on the floor.
The 6-minute walk test measures a different piece of the same picture, endurance rather than power. Both belong to the same Rikli and Jones battery.
For younger adults, a floor test on the number of push-ups you can do covers similar ground. The point of any of these benchmarks is the same. Is the muscle that drives your daily life holding up?
What to do if your score is low
A single test is a snapshot, not a diagnosis. But scoring below the 25th percentile for your age is worth raising with a doctor or physical therapist, especially if you have already had a fall or feel unsteady on your feet.
Structured strength training, even starting late, can move the number in the right direction.
This article is made and published by Jesper Bengtson, who may have used AI in the preparation.