Facing a proliferation of sexual assault allegations involving a former team doctor, USA Gymnastics, the governing body for the sport, last year signed a nondisclosure agreement as part of a settlement with one of the accusers, McKayla Maroney.

Maroney, a gold medalist at the 2012 London Games, is among the many gymnasts who have said they were abused by the doctor, Lawrence G. Nassar.

The settlement was described in a lawsuit filed Wednesday by Maroney against the United States Olympic Committee, USA Gymnastics and Michigan State, which employed Nassar. The existence of the suit was first reported by The Wall Street Journal.

The lawsuit claims that Maroney “was forced to agree to a nondisparagement clause and confidentiality provision,” and that she would have had to pay more than $100,000 should she “speak of her abuse or the settlement.”