The Olympic gold medalist McKayla Maroney said in a statement on Thursday that being sexually abused as a teenager by Lawrence G. Nassar, the former doctor for the national women’s gymnastics team, left “scars” on her psyche “that may never go away.”

The statement from Ms. Maroney, 22, read for her by a prosecutor, was one of 105 impact statements from victims read aloud this week during the proceedings against Dr. Nassar in County Court in Ingham County, Mich.

Ms. Maroney said the abuse began at a Texas training camp when she was 13 or 14, and that it continued for years.

“I was told to trust him, that he would treat my injuries and make it possible for me to achieve my Olympic dreams,” she said. “Dr. Nassar told me that I was receiving ‘medically necessary treatment’ that he had been performing on patients for over 30 years.”