"I feel like a whinger even mentioning I have arthritis because it's the kids who cope with this disease that are the real heroes," Price said.
"I was shocked to discover that about 1000 children in New Zealand have arthritis. "
The father of three said he played league with anaesthetic injections in a troublesome heel for the final two years of his career.
"I've also had three or four operations on both shoulders; my collar bone aches all the time," he said.
On Friday in Auckland, Price met some of the kids bound for next year's camp at Matamata, including Rhiannon Wood, 9, Dylan Hollick, 11, and Jacob Toresen, 14.
"One of the best things is meeting other children who have arthritis too, because you know you are not the only one who has it," Rhiannon, from Papakura, said.