Jamie Dantzscher is the latest gymnast to have come forward with allegations ©Getty Images

Jamie Dantzscher, an Olympic bronze medallist in the team all-around women's event at Sydney 2000, has become the latest to make claims of sexual abuse against a former USA Gymnastics team doctor.

Dantzscher joined Jessica Howard, the United States national rhythmic gymnastics champion from 1999 to 2001, and Jeanette Antolin, a Pan American Games silver medallist, in detailing alleged abuse by Lawrence Nassar.

She spoke on the CBS 60 Minutes programme broadcast yesterday.

The 34-year-old filed a lawsuit against Nassar in California last September as "Jane Doe".

She gave up her anonymity for the programme and claimed she fell victim to Nassar's abuse when she was sent to visit him to receive treatment for lower back pain.

"I started having really bad lower back pain on my right side on my back," Dantzscher said.

"So I went to him for my back pain."

When asked how old she was when she first went to Nassar for the back treatment, Dantzscher replied: "I was either 13 or 14."

Howard detailed to CBS an appointment with Nassar at the USA Gymnastics National Team Training Centre at Karolyi Ranch in Houston in Texas.

Jamie Dantzscher, third from right, appeared on CBS television's 60 Minutes programme ©Getty Images
Jamie Dantzscher, third from right, appeared on CBS television's 60 Minutes programme ©Getty Images

"He started massaging me and he had asked me not to wear any underwear and then he just continued to go into more and more intimate places," the 32-year-old, now a stretch and conditioning specialist working for several ballet companies, told 60 Minutes.

"I remember thinking something was off, but I didn't feel like I was able to say anything because he was this very high profile doctor and I was very lucky to be at the ranch working with him.

"The girls would say, 'Yeah, he touches you funny'."

Antolin, now 35, was on the US team from 1995 to 2000 and a member of the 1999 World Championship squad.

Nassar was arrested in December as part of a Federal investigation into child pornography.

He is accused of molesting dozens of patients during his time in the role from 1996 until 2015.

Nassar is also alleged to have possessed "thousands of images of child pornography" between 2003 and 2016, according to a two-count indictment filed in Michigan.

An osteopathic physician, Nassar worked with Olympic and national women's teams for more than two decades.

USA Gymnastics declined to speak with the programme on camera.

The organisation claimed it severed ties with Nassar in 2015 when first learning of the testimonies against him.