Zhang (fifth from left) and 13 members of the Special Olympics short-track speedskating team in Qitaihe.
While studying exercise rehabilitation of the disabled, she began to explore the idea of becoming a Special Olympics coach, and in 2014 was summoned back to her hometown.
"I still remember the smile on the face of the principal when I went to select athletes at Qitaihe Special Education School," Zhang said.
"He told me that he and the students' parents would do anything to help the students have the opportunity to enjoy sports in the same way as children without disabilities. His words were inspirational."
However, when the 26 team members lined up in front of her for the first time, Zhang realized the task she was faced with was going to be far more difficult than she had imagined.
Only five of the children, who all had hearing disabilities, were able to run.
Due to the poor receptivity and physical condition of the team, Zhang had to repeat every action countless times.
"During the process, I found that dedication, patience and love are much more important than sports technologies," Zhang said.
To get closer to the children, Zhang gave each of them a nickname. Sometimes in the training, she dressed up as different animals and told stories to the children.
"I wanted to show them that I am their coach, but also their friend," Zhang said.
"However, I felt guilty about not spending enough time with my daughter, especially during her senior high school entrance examination."
But her efforts paid off.
"All of the children made great progress, which surprised many of their parents," Zhang said. "The children's coordination improved and more important, they learned the importance of teamwork."
Over the past two and a half years, Zhang has taken a keen interest in the children's overall development, often visiting their homes and recording every detail about their progress.
"Seeing them grow as people has meant the most to me," she said.
"I helped them develop physically and mentally through skating, but I hope it also enabled them to realize their potential and build self-worth," Zhang said.
"We have recruited a new group of team members now and I believe sports can help their mental and physical development," she said.
"I hope to help children in need of exercise rehabilitation all around the country."