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Children become less active in each year of primary school, study suggests

Children did an hour less physical activity per week aged 11 compared with when they were six.

The study monitored 2,000 children across the south west of England (Ian West/PA)
The study monitored 2,000 children across the south west of England (Ian West/PA)

By Claire Hayhurst, PA

There is a dramatic drop in children’s physical activity levels by the time they finish primary school, a study has found.

Children lost on average more than an hour of exercise per week between the ages of six and 11, with a greater fall at the weekends, the research found.

Researchers monitored the behaviour of more than 2,000 children from 57 schools across the south west of England during primary school.

They found children became 17 minutes less active per week each year.

This isn’t about getting children to exercise more, but rather maintaining their activity levels Russ Jago, University of Bristol

Russ Jago, professor of paediatric physical activity at the University of Bristol, said: “Evaluating patterns of physical activity across childhood is an important way to identify key ages in which to intervene to change behaviour – and establish healthy habits for life.

“These numbers prove that more needs to be done to ensure children keep active as they approach adolescence.

“This isn’t about getting children to exercise more, but rather maintaining their activity levels.

“Developing early intervention strategies that help children retain activity levels could include after-school physical activity programmes, focusing on participation and enjoyment in addition to popular sports – and a greater emphasis on promoting weekend activities.”

In the study, children wore an accelerometer for five days, including two weekend days.

This provided an assessment of how many minutes per day the children participated in moderate to vigorous physical activity – defined as making them slightly out of breath and sweaty.

The UK Chief Medical Officers recommend that children do an hour of such activity every day.

The study found that 61% of children in Year 1 did at least an hour of this activity per day but by Year 6, only 41% achieved the target.

Almost a third of children in the UK weigh more than they should, while one in four primary school children are not meeting the recommended levels of exercise Professor Jeremy Pearson, British Heart Foundation

In girls, the figure fell from 54% to 28% by the time they finished primary school.

Results showed that average weekday activity decreased between age six and 11 by 2.2 minutes per day per year.

Average weekend activity decreased by 3.1 minutes per day per year.

Girls were less active than boys at all ages but the gap became wider as the children aged, with a nine-minute per day gap increasing to 15 minutes at age 11.

The research also examined how body mass index is associated with physical activity in childhood and whether associations change as children age.

Data from the 2017/18 National Child Measurement Programme shows that 10% of children aged four to five in England were obese.

This figure doubled to 20% for 10 to 11-year-olds.

In total, 90% of children who were obese at the age of three remain overweight or obese in adolescence.

Professor Jeremy Pearson, associate medical director at the British Heart Foundation, said: “Almost a third of children in the UK weigh more than they should, while one in four primary school children are not meeting the recommended levels of exercise.

“We know that children living with obesity are more likely to become obese adults – putting them at increased risk of developing heart and circulatory diseases and their risk factors, such as type 2 diabetes and high blood pressure, later in life.

“Staying active must be combined with policies that help families make healthy and informed choices, such as a 9pm watershed on junk food marketing and restricting the promotion of unhealthy foods.”

The research found that at age six, there was no difference in the activity of children who were a healthy weight compared with those classed as overweight or obese.

However, a child that was obese aged six and remained so at age 11 engaged in 10 minutes less activity per weekday than a similar child at a healthy weight at both ages.

PA

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