Research shows that people’s ability to stand on one leg is an indicator of health and that getting better at standing on one leg can add to fitness and potentially lifespan. The inability to balance on one leg for 20 seconds or longer is linked in otherwise healthy people to an increased risk of small blood vessel damage in the brain and reduced ability to understand ideas.
The human body, when standing upright, is inherently unstable. We have a very small base of support relative to our height and width. When in good health we rely on our central and peripheral nervous system to integrate all the information coming in from our balance senses (eyes, inner ears and feedback from muscles and joints). We then engage the right muscles (feet, ankle, leg and core muscles, sometimes even the arm muscles) at the right time to make the necessary adjustments to our posture to stay upright.
(Professor Dawn Skelton)
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