International Olympic Committee (IOC) president Thomas Bach said it had been "chilling" to witness Russian teenage skater Kamila Valieva crumble under pressure at the Beijing Olympics in the wake of a doping scandal, hitting out at the 15-year-old's entourage on Friday.

Valieva, who had been leading the women's figure skating event after the short programme, cracked in her free skate on Thursday night, and stumbled down to fourth place as her compatriot Anna Shcherbakova skated to gold.

"I must say I was very, very disturbed yesterday when I watched the competition on TV," Bach told a news conference.

"How high the pressure on her must have been."

Valieva failed a doping test at her national championships last December but the result was only revealed on February 8, the day after Valieva had helped the Russian Olympic Committee (ROC) win the team event.

The Russian Anti-Doping Agency lifted a provisional ban on her and the Court of Arbitration for Sport (CAS) on Monday rejected an appeal by the IOC, the International Skating Union (ISU) and the World Anti-Doping Agency (WADA) to re-instate the suspension - therefore allowing her to compete in the single event on Tuesday and Thursday.

Shcherbakova wins figure skating gold as Valieva collapses  

"To see her struggling on the ice, to see her, how she tries to compose herself again, how then she tries to finish her programme and you could see in every movement, in the body language, you could feel that this is immense, immense mental stress and maybe she would have preferred to just leave the ice and try to leave this story behind her," said Bach.

Valieva left the ice hiding tears behind her hands and sobbed in the 'kiss and cry' area as her coach, Eteri Tutberidze, confronted her.

"Why did you let it go? Explain it to me, why? Why did you stop fighting completely? Somewhere after the axel you let it go," Tutberidze said.

"When I afterwards saw how she was received by her close entourage... it was chilling to see this," said Bach.

"Rather than giving her comfort, rather than to try to help her you could feel this chilling atmosphere, this distance and if you were interpreting the body language of them, it got even worse because this was even some kind of dismissive gestures.

"All of this does not give me much confidence in Kamila's closest entourage."