How Fatigue Changes Balance

Summary

Areas of Science

Sports Science
Human Biology & Health

Difficulty

Method

Scientific Method

Time Required

Short (2-5 days)

Cost

Very Low (under $20)

Safety

Do the balance test on a flat surface and have someone nearby to prevent falls.

Credits

Renee Sample, PhD, Science Buddies

Science Buddies is committed to creating content authored by scientists and educators. Learn more about our process and how we use AI.

Image Credit: studionone / Pixabay Content License

Abstract

Balance is one of the most important parts of how our bodies work. Even standing still requires the brain, muscles, eyes, and inner ears to coordinate perfectly. But what happens when you get tired—even just a little bit—from something like dancing, running, jumping in place, or doing step-ups for a short period of time? Many scientific studies show that fatigue—both mental and physical—can make balance worse. For example, after short bursts of physical activity, people often show increased sway, more wobbling, or have more trouble in balance tests.

In this project, you will test how fatigue from activity changes balance. By observing how well someone can balance before and after doing something physically tiring for various amounts of time (like jogging in place, doing jumping jacks, or doing squats), you’ll measure differences in stability. You might track how long someone can stand on one foot, how much they sway, or how many seconds they can hold a position, like the Y-Balance Test. This will help you see first-hand how even a little fatigue can affect your body’s ability to stay steady—and why it’s so important for athletes, older people, and everyone in between to train to improve their balance.

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Global Goals

The United Nations Sustainable Development Goals (UNSDGs) are a blueprint to achieve a better and more sustainable future for all.

This project explores topics key to Good Health and Well-Being: Ensure healthy lives and promote well-being for all at all ages.

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