SLIPPING and sliding in the mud sounds like fun, but add electricity, fire and barbed wire to the mix and you really do have to be a Tough Mudder.

People from all walks of life and all fitness levels converged on Racecourse Rd in Caloundra yesterday to complete a challenge that was made all the more difficult yesterday by inclement weather.

Queensland Ambulance senior operations supervisor Shane Kropp said Tough Mudder was a great event for the Sunshine Coast, yet this year it appeared injuries were on the rise. About 10 people were transported to hospital yesterday, most with lower limb fractures.

Some participants suffered shoulder dislocations and hypothermia.

For most, however, pain soon turned into pleasure as keen athletes emerged from the Shock Therapy challenge before the home stretch.

Teams banded together and participants helped complete strangers overcome struggles including the electric shocks and exhaustion.

There were no trophies and no place-getters but everyone who participated felt like a winner.

Tough Mudder Australia general manager Jeremy Kann echoed the mentality of those taking on the challenge.

"It's not a race, it's not about time, it's about teamwork and camaraderie," he said.

Mr Kann said the rain had created fantastic conditions for the event.

Kevin Harrold was exhausted at the finish line, his spirits brightening after being handed a potassium-rich banana and a beer.

"It was sensational, I loved every minute of it," he said.

"I'm feeling tired, cramped, but I'm feeling pumped."

Mr Kann said it wasn't just the super fit who took part in the annual event.

"I think there's a little bit of a myth that to do Tough Mudder you've got to be a physically fit athlete," he said. "The Tough Mudder course is open to everyone."