Yu Yonghe poses for a photo in a marathon event held in Changchun, capital of Northeast China's Jilin province, on July 2, 2016. [Photo provided to chinadaily.com.cn]

"I hope I can record my grandfather's persistence in running, which may greatly encourage more people to participate in sports," said the granddaughter Chen Guanxin, a college student at Northeast Normal University in Changchun.

"My classmates and I were deeply moved by my grandfather during the filming," Chen said.