Single-Leg Balance: the standards by age
Systematic-defined standard (never a published clinical cut-off) Scoring version healthspan_v2_2026_08. Red, yellow and green are Systematic standards, not published clinical cut-offs.
| Cohort | Red · Priority capacity | Yellow · Functional target | Green · Exceptional capacity |
|---|---|---|---|
| Everyone, 18–34 | 0–9 seconds | 10–59 seconds | 60+ seconds |
| Everyone, 35–55 | 0–9 seconds | 10–44 seconds | 45+ seconds |
| Everyone, 56+ | 0–4 seconds | 5–34 seconds | 35+ seconds |
What Systematic recommends
Where to start
- A wall or other rigid surface that will not give way. A fixed visual point directly in front of you to focus on. Stand next to the wall or stable surface with bare feet flat on the ground. Choose a visual point across the room that is directly in line with you.
- Stand tall and bring your attention to the tripod points of contact through the foot. Briefly lock the standing knee, then unlock it into a soft, active position. Reach to the wall with two fingertips, using only very light contact. Keep your eyes focused straight ahead on your chosen visual point.
- Maintain awareness of the tripod points of contact through the standing foot. Keep the standing knee soft and active. Use as little pressure through the two fingertips as possible. Lift the inside foot approximately 6–12 inches off the ground. Stand tall throughout the hold. Breathe normally. As you progress, gradually reduce the pressure through your fingertips. When comfortable and controlled, progress toward briefly breaking contact with the wall.
- 3 sets. Begin with a 10-second hold. Progress in 10-second increments. Work toward a 30-second hold. Use as little fingertip contact with the wall as you can comfortably control. If you become too unsteady or the movement feels uncomfortable, take a step back and reassess. Return to a level where the movement feels achievable, comfortable, manageable, and well controlled.
Condensed from the published Development Pathway (Single-Leg Balance: Two Finger Wall-Assist Tripod Stand). This is a starting point, not a training program or medical advice.
How to read the table
Find your age band: 18 to 34, 35 to 55, or 56 and over. Each band has a red, yellow and green range in seconds, all Systematic standards, with no gaps or overlaps between them. Men and women share the same bands.
Your band comes from your actual time in seconds. There is no cap on the time, so a long hold is recorded in full, even though the 0 to 10 score tops out at the start of the green Systematic standard.
Why age matters and sex does not
Systematic scores balance by age only, with no adjustment for sex or for your dominant side. Rather than invent separate figures for men and women, it keeps one set of standards for each age band.
How the test is done and when it stops
You stand barefoot, eyes closed, hands on your hips, and lift the free foot completely clear of the floor, anywhere from about 1 to 12 inches. You do not need to raise your knee high, but the free foot must not touch, rest on or lock against the standing leg.
Both legs are tested, one attempt each, and both times are recorded so a difference between sides is visible. A difference between sides does not lower your score.
The timer stops at the first fault: opening your eyes, a hand leaving your hip, the free foot touching the floor, the free foot touching or resting against the standing leg, or the standing foot hopping or materially shifting. Ordinary sway with the standing foot planted is not a fault.
The Systematic Healthspan Assessment is a physical baseline. It is not a diagnosis, and it does not estimate a biological age, a disease risk or a lifespan.