Why fidgeting might be good for children

 

 

Parents and teachers tend to frown at children who fidget in our homes and classrooms.  It is usually interpreted as  a sign of boredom or lack of attention and so we order children to sit still.  But now, a recent report in Medical Express (medicalexpress.com/news/2019-09-fidgeting-good-child-health.html)) suggests that fidgeting could actually be good for their health. Research suggests it might help protect against obesity, improve cardiovascular health, and even save lives.

Researchers from Australian universities measured the energy expenditure of 40 children aged four to six while each spent an hour in a room designed to calculate energy through the amount of oxygen breathed in and carbon dioxide breathed out.

The children all followed the same procedure for the hour: 30 minutes watching TV, ten minutes drawing or colouring in, and 20 minutes playing with toys on the floor. The number of times children changed posture was counted and taken as our measure of fidgeting.

The fidgeting that was witnessed varied enormously, despite all of the children following the standard set of activities. There were 53 posture changes per hour in the most fidgety third of the sample, and only 11 per hour in the least fidgety third. These differences directly affected the number of calories burned.

The difference between most and least fidgety groups was only around six calories per hour. But when extrapolated over months and years, this could lead to large differences in energy use.

After all, children of that age typically spend around nine to ten hours per day sitting down, so a six calorie difference per hour of sitting would become a difference of 60 calories per day, 420 calories per week (about three bags of crisps), and 22,000 calories per year (equivalent to about 2kg of body weight in a 20kg child).

They also found that children were much less fidgety while watching TV than when drawing, colouring, or playing with toys on the floor. This may partly explain why time spent watching TV increases the risk of obesity so strongly in children of this age compared to other sedentary activities.

Meanwhile, an older study found that more fidgety adults resisted weight gain when overfed compared to less fidgety individuals. Taken together, this evidence suggests that differences in the tendency to fidget might partly explain why some people are more susceptible to obesity than others.

It is now well established that prolonged periods of sitting are harmful to health, and it is possible that fidgeting might reduce the harms of sitting. A study of more than 12,000 adult women in the UK found, as expected, that the amount of time spent sitting per day predicted the risk of premature death over the subsequent 12 years.

At the start of the study the women had been asked to self-rate their tendency to fidget on a scale of one (no fidgeting) to ten (constant fidgeting). In the most fidgety third, the risks of premature death from sitting were substantially reduced compared to the least fidgety third.

Why fidgeting seemed to reduce premature mortality was not explored in that study. However, a more recent laboratory-based study in adultsfound that the harmful effects of prolonged sitting on blood vessels in the legs (such as reduced blood flow) could be mitigated by asking the study participants to fidget by moving their legs while sitting. Fidgety individuals may have some protection from cardiovascular diseasecompared to less fidgety individuals

Fidgeting is not considered as being important to health at the moment, but the growing body of research suggests that it should be. The evidence might even lead to new (and much needed) approaches to preventing obesity and promoting cardiovascular health.

Such approaches might be particularly practical as they involve fairly small changes in how we live. Fidgeting or standing breaks during long periods of sitting in the classroom, or at home, far from being an annoying habit, could be precisely what we need.

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