Swimmers like Australia's Mack Horton and the US's Katie Ledecky have received support from Australia's track and field athletes for voicing concerns about doping in sport.
Arriving in Rio from the athletics team's training camp in Florida, discus and shot put athlete Dani Samuels told reporters it was a good thing the entire Russian athletics team had been banned from competing at the Games.
"I think it’s a good step forward for clean sport, for the Olympics, and gives Australians a better chance," she said.
"It’s a level playing field. We like to compete clean, that’s what we do and I think it’s fantastic that athletes are speaking out about it.
"I have people in my event who have tested positive and have served a ban while I’ve been competing against them in the past couple of years.
"I fully support Mack and what he’s done and it can only move the sport forward."
Samuels said it was "fantastic" that athletes had decided to speak out against doping.
"I think it's a fantastic thing for athletes to speak up because it's almost a taboo to even say that, but you know with everything that's happened with Russia, it's a good step forward for clean sport," she said.
At a press conference, British athlete Jo Pavey told reporters she had suspicions about people in her sport for years.
"It was quite obvious there were suspicions for many years over what was happening in Russia," she said.
"I know I was competing for many years with these suspicions and it’s been a shame it’s taken so long to sort out."
Pavey said the International Olympic Committee had "passed the buck" on sending a strong message on doping by deciding not to ban the entire Russian Olympic team, and instead leaving it up to the individual sporting federations to decide their fate.
"It is a shame on the eve of the athletics starting to be talking about doping," she said.
British walker Tom Bosworth said banning Russian athletics competitors from the Rio Olympics was "the right thing" to do.
"My event has been dominated by Russian athletes who have now lost their medals since and so if they were here, I’d have been 100 per cent confident that they’re not clean," he said.
"I see this as good for the sport because Russian athletes are hugely talented anyway and I want to race against them, but I want to race against them knowing they’re clean, as does everybody else."
He said he could not comment on whether Russian athletes in other sports should be at Rio, but said: "If their federations have sent them here then they believe they are clean because I don’t think they’d want to be embarrassed."
