Stand on One Leg: A Simple Test of Health & Longevity

Standing on one leg, a seemingly simple act in youth, can become a revealing indicator of overall health as we age. Specialists agree this straightforward action can offer valuable insights into how the body and brain age, and also provides benefits when practiced regularly.

The Body’s Silent Signals

Balance develops progressively throughout childhood and adolescence, typically stabilizing around ages nine or ten. It reaches peak performance in early adulthood, generally by the late thirties, before a gradual decline begins. Difficulty holding this posture for more than a few seconds after age 50 can reflect physical and neurological changes associated with aging.

More Than Just a Test

This exercise isn’t just an indicator; it can be a preventative tool. Practicing balance on one leg helps decrease the risk of falls, strengthens muscles, and may positively influence cognitive functions like memory, according to Tracy Espiritu McKay, a specialist in rehabilitation medicine at the American Academy of Physical Medicine and Rehabilitation. “If it’s difficult, it’s time to start training your balance,” she states.

The Role of Muscle Loss

One reason health professionals observe this ability is its connection to sarcopenia, the age-related progressive loss of muscle mass. The body can lose up to 8% of muscle per decade starting at age 30, and research suggests nearly half of those aged 80 have clinical sarcopenia. This condition affects the strength of the legs and hips, making it harder to maintain stability.

Training on one leg helps preserve these muscle groups, explaining why those who practice regularly are less likely to develop sarcopenia later in life. Kenton Kaufman, director of the motion analysis laboratory at the Mayo Clinic in Rochester, Minnesota, notes, “The ability to stand on one leg decreases (with age). People start to experience this in their 50s or 60s, and then it increases quite a bit with each decade of life thereafter.”

A Complex System

Beyond muscle strength, balance relies on coordination between multiple systems: vision, the vestibular system of the inner ear, and the somatosensory network that informs the brain about body position and contact with the ground. “All of these systems deteriorate with age at different rates,” Kaufman explains.

Therefore, difficulty with single-leg stance can reveal alterations in brain areas related to reaction speed and sensory integration, according to Espiritu McKay.

The Stakes are High

Accelerated loss of these capabilities not only compromises independence but also increases the risk of falls. Data from the Centers for Disease Control and Prevention (CDC) indicates that falls are the leading cause of injury for people 65 and older in the United States. Kaufman explains that many falls aren’t due to a lack of strength, but a delayed reaction: “Imagine you’re walking and trip over a crack in the sidewalk. In most cases, whether or not you fall isn’t a matter of strength, but of whether you can move your leg quickly enough and put it where it needs to be to stop the fall.”

Balance and Longevity

Several studies have found a relationship between balance and mortality. A 2022 investigation concluded that middle-aged individuals unable to maintain a single-leg stance for 10 seconds were 84% more likely to die from any cause within the following seven years.

Another study, involving 2,760 people aged 50 to 59, compared three physical tests: grip strength, sit-to-stand repetitions, and single-leg balance with eyes closed. Over 13 years of follow-up, the balance test proved most predictive; those who could only hold the position for two seconds or less had a three times higher risk of death than those who held it for over 10 seconds.

Cognitive Connections

This pattern has also been observed in individuals with dementia. Espiritu McKay notes that those who retain the ability to balance on one leg tend to experience slower cognitive decline. “In patients with Alzheimer’s, researchers are discovering that if they aren’t able to stand on one leg for five seconds, this often predicts faster cognitive deterioration,” she indicates.

Training is Possible

Scientific evidence supports that balance can be trained at any age. “Single-leg training” exercises strengthen the trunk and lower limbs and also stimulate brain areas linked to sensorimotor integration and spatial perception. “Our brain isn’t immutable,” Espiritu McKay affirms, “it’s quite malleable.”

These exercises activate the prefrontal cortex and can improve cognitive performance during simultaneous tasks. A positive impact on working memory in healthy young adults has even been observed. Espiritu McKay advises those over 65 to practice these exercises at least three times a week, though integrating them into daily routines is recommended.

A Simple Self-Assessment

Claudio Gil Araújo, an exercise medicine researcher at the Clinimex clinic in Rio de Janeiro and responsible for the 2022 study, suggests a simple self-assessment starting at age 50: attempting to stand on one leg for 10 seconds. “This can be easily incorporated into daily activities,” he indicates. “You can stand for 10 seconds on one leg and then switch to the other while brushing your teeth. I also recommend doing it both barefoot and with shoes, because they are slightly different.”

Routine activities, like washing dishes or brushing teeth, can become training moments. Experts suggest minimizing swaying and dedicating at least 10 minutes daily to these practices. Gentle hip-strengthening exercises with light resistance, combined with strength, aerobic activity, and balance routines, are also recommended—a strategy that can reduce fall risk by 50%.

This connection explains why disciplines like yoga or taichí, which include single-leg postures, are associated with healthy aging. Kaufman cites a study linking taichí to a 19% reduction in fall risk.

For Gil Araújo, the most encouraging results come from consistency. His clinic evaluated a 95-year-old woman who could maintain the posture for 10 seconds on either foot. “We can train and improve the performance of our biological systems until the last days of our lives, even if we are centenarians,” he concludes.

Frequently Asked Questions

What age does balance typically start to decline?

While balance reaches peak performance in the late 30s, a gradual decline typically begins after that, with noticeable difficulty sustaining a single-leg stance often appearing after age 50, according to experts.

Can practicing single-leg stance improve cognitive function?

Yes, these exercises can activate the prefrontal cortex and potentially improve cognitive performance during tasks requiring multiple steps, and have even shown a positive impact on working memory.

What is the connection between balance and mortality risk?

Research indicates a strong correlation; a 2022 study found that middle-aged individuals unable to stand on one leg for 10 seconds had an 84% higher risk of death from any cause within seven years.

How might incorporating simple balance exercises into your daily routine impact your long-term health and well-being?