Addressing her skeptics, Diana Nyad claimed the right to set the ground rules for future swims from Cuba to Florida without a shark cage.

Speculation that she had gotten into or held onto a boat during part of her 53-hour journey drove Nyad and her team to hold a lengthy conference call Tuesday night with about a dozen members of the marathon swimming community.

Nyad said it was her understanding of the sport that the first person to make a crossing got to set the rules for that body of water. She said her “Florida Straits Rules” would largely maintain what they all agree on: no flippers, no shark cage, no getting out of the water, never holding on to the boat, never holding on to the kayak, never being supported by another human being or being lifted up or helped with buoyancy.

She would allow innovations such as the protective full-body suit and mask she wore to shield herself from the venomous jellyfish that can alter a swim as much as a strong current. Marathon swimming purists had questioned whether that gear violated the traditions of the sport.

“It is the only way. The swim requires it,” Nyad said. “I don’t mean to fly in the face of your rules, but for my own life’s safety, a literal life-and-death measure, that’s the way we did it.”

Nyad said she never left the water or allowed her support team to help her beyond handing her food and assisting her with her jellyfish suit.

“I swam. We made it, our team, from the rocks of Cuba to the beach of Florida, in squeaky-clean, ethical fashion,” Nyad said.

Her critics have been skeptical about long stretches of the 53-hour swim were Nyad appeared to have either picked up incredible speed or to have gone without food or drink. Since Nyad finished her swim Sept. 2 in Key West, long-distance swimmers have been debating the topic on social media and online forums.

After the call, Evan Morrison, co-founder of the online Marathon Swimmers Forum, said Nyad and her team addressed most of the issues that concerned the members of the forum.

He was pleased by Nyad’s pledge that all the observations and notes taken by her navigator, John Bartlett, and two official observers of the swim will be made available for public examination.

“I wouldn’t expect to discover anything untoward, but I think it will help us understand a lot better what happened and give us a fuller picture of the achievement,” Morrison said. “That’s just part of the process. This was a great first step.”

Nyad’s speed, at some points more than doubling her average of 1.5 mph, has drawn particular scrutiny. Bartlett attributed her speed to the fast-moving Gulf Stream flowing in her favor.

Nyad’s fastest speed averaged about 3.97 mph over a 5.5-hour period that covered about 19 miles on Sept. 1, crossing the strongest parts of the Gulf Stream, which was flowing at a favorable angle, Bartlett said.

“What you’re seeing is the combination of the speed of Diana propelling herself in the water and the speed of the current carrying us across the bottom,” he said.

An oceanography professor at the University of Miami said data collected from a research buoy drifting in an eddy referenced by Bartlett confirms that ocean currents contributed as much to Nyad’s speed as Bartlett said they did.

The eddy appears periodically in that region, and it alters the course of the Gulf Stream. The buoy’s average speed was about 1.6 mph, Tamay Ozgokmen said.

Nyad said she had not known about all the controversy over her methods and speed until it made national news.

“First of all, I was trying to feel some joy,” she said.