Research by myself and collaborators has identified a positive relationship between physical activity and academic attainment. This is the case even when other background factors, such as parents' education, birth weight, socio-economic status, earlier education and intelligence are taken into consideration.

We completed a large scale study, assessing the physical activity levels of more than 5,000 11-year-olds and then looked at how they did in their GCSEs and A levels. The children who were more active at 11 were doing better at school five years later, even when background factors were taken into account. We can’t say that the activity definitely caused the attainment, but it’s strongly associated.

Although we know there are good associations, we still don’t know exactly why, but there are a number of plausible reasons backed up by research. Exercise increases blood flow and oxygen to the brain, which helps it to work better and leads to an increase in brain-derived neurotrophic factor, which helps with brain development.

There are also psycho-social factors, such as people who are active tend to be happier, have higher self esteem and have a lower risk of depression and anxiety. Also, exercise leads to better general health, so children are less likely to be absent from school or have problems associated with obesity and poor health. All these factors have been scientifically supported as being important for school attainment.

Research shows that a fit person performs better in cognitive tests than an unhealthy person, and fit children do better in numeracy and literacy assessments than unfit children. But we're at the start of this journey: we know there's a link but we need to look at the causes.

I was recently part of an international group that reviewed the available evidence. We found that there are lots of individual positive pieces of research, but not enough understanding of the overall mechanisms.

Going forward, we need to establish the most effective activities – team games, aerobics or a mix? We also need to identify how much exercise is needed to get a certain result? Once we know this we can make recommendations about how schools can bring more physical activity into the curriculum, such as exercise breaks in lessons.

A school designed around child development would involve movement and activity. We teach children sedentary behaviour and passivity, which is unnatural. Forest schools in Germany and outdoor schools in the US are bucking this trend, and children there don’t get worse grades.

We need more teachers and more parents to believe in the benefits of physical activity to learning, and for the fitness industry to help get the message across.

It's important for vice chancellors and directors of sport at universities to see that sport can help undergraduates settle into life away from home for the first time. They could promote sport and physical activity as a tool to integrate students, help them to make friends and develop a positive outlook towards their university experience, as well as developing skills that employers value, such as communication and teamwork.

University is a difficult time, as young people move to a different environment and have to adapt to a new way of life. Active students may immediately immerse themselves in a sport they have grown up with, but it’s easy for all others to become completely inactive, unless universities try to engage with them and promote the benefits of an active lifestyle.

There is a responsibility for universities to keep expanding the offer beyond traditional sports.

A study by the Research Institute identified a big group of students who weren’t completely inactive, but who weren’t meeting recommended activity levels either. As such, offerings must be diverse in order to engage these students. We have seen an increase in fun sports like quidditch and frisbee, which are more focused on play rather than competition.

The wider health and fitness sector also needs to respond to student needs. For example offering flexible memberships, being able to freeze memberships during holiday times and offering programmes which will appeal to different students at different times of the day.

There are a wide range of studies that show physical activity can improve academic performance, both in terms of grades and standardised tests. Physical activity increases blood flow to the brain, delivering more oxygen. Active, fit kids are shown to be more focused, less prone to boredom and have better concentration. My research has found that the improvement is best after higher intensity physical activity. Research has shown benefits from both chronic (habitual) exercise and acute.

Despite this compelling evidence, there is the issue that teachers are evaluated by test results and therefore want to focus on the academic time. We need more evidence to show that decreasing academic time and increasing physical activity won’t impact on test results. We also need compelling case studies to get more schools on board.

I would like to see better use of recess: kids get less recess as they get older, but also use it less for physical activity, partly because of lack of facilities and partly because they have grown out of playing on climbing frames. More semi-structured activity at break time could boost their physical activity levels and concentration.

For younger children, playtime activities like galloping and hopping are enough to bring about benefits and improve their motor skills. Research shows that if they don’t develop their motor skills, they are less likely to be active when they’re older.