Eton Manor coach Richard Stock and his seven-year-old son Thomas completed a duathlon to raise £850 for a defibrillator at Theydon Bois Primary School.

Last month at the New Wilderness the pair cycled for 5km, ran for 2.5km and finished off with another 5k bike ride. 

Danny Hyde, who works for the Emergency Services, has been fundraising and providing training for the equipment which many schools hope they do not ever have to use. 

The 38-year-old, from Loughton, said his son wanted to get involved after seeing his uncle and himself fundraising for other projects.

He added: "I know Danny and I know what he does and he has fundraised for three other schools.

"I wanted to get involved and then I mentioned it to Thomas and he said he wanted to also help out.

"So I replied by saying great, go on son."

At this present time, 270 children die in the UK every year after suffering a sudden cardiac arrest at school.

But having a defibrillator on the site increases the child's survival rate from six per cent to 74 per cent. 

Stock added: "There is no way a school should not have one. 

"That statistic really struck a cord with me. I hope it never sees the light of day.

"Thomas and I both came up with something we wanted to do and because he is too young to enter anything officially we went down to the rugby club and did it there.

"We want more people to get involved and so more schools have them. 

"The machines are so clever now they almost robotic as they tell you what to do when it needs to be used."

The pair raised more than £1200 and Hyde offered to train staff members for free.

On Monday the defib was presented to the school.