A Human Rights Watch report has found child athletes in Japan often suffer physical and verbal abuse and sometimes sexual abuse when training for sport after documenting the experiences of over 800 athletes in 50 sports.

The 67-page report released on Monday titled “I Was Hit So Many Times I Can’t Count” looks at Japan’s history of physical punishment in sport and includes first-hand accounts of athletes being punched, kicked and whipped.

The report comes in the week that would have marked the start of the Tokyo Olympics had it not been for the global coronavirus pandemic. The Games have now been delayed a year.

“For decades, children in Japan have been brutally beaten and verbally abused in the name of winning trophies and medals,” Minky Worden, director of global initiatives at Human Rights Watch (HRW), said in a statement.

In 2013, the Japanese Olympic Committee (JOC) promised to take steps to wipe out violence among its sports federations after an internal survey revealed more than 10 percent of its athletes had been victims of bullying or harassment.

They also cut funding to its judo federation at the time after coaches were found to have physically abused female athletes.

HRW said, however, that not enough had been done since then and demanded organizations such as the Japan Sports Council and the JOC use the upcoming Olympics as a catalyst for change.

The JOC did not immediately respond to Reuters requests for comment.

The report was based on interviews with more than 50 current and former athletes, an online survey that drew more than 757 responses and meetings with eight Japanese sports organizations.

Of the 381 survey respondents aged 24 or younger, 19 percent indicated they had been hit, punched, slapped, kicked, knocked to the ground or beaten with an object while participating in sports. These experiences occurred in at least 22 different sports, the report said.

“The coach told me I was not serious enough with the running, so we were all called to the coach and I was hit in the face in front of everyone. I was bleeding, but he did not stop hitting me,” the report quoted a professional athlete given the pseudonym of Daiki A. as saying.

Eighteen percent reported experiencing verbal abuse, and five reported experiencing sexual assault or harassment while participating in sport as children.