The challenge to do 3128 push ups in 21 days is to raise awareness around pushing for better mental health and to help raise funds for HeadSpace Australia.

Lithgow residents Katie Wright, Karen Judge, Donna Lowry and Adam Croal have teamed up to take on the challenge, to raise more awareness about regional mental health and Lithgow's newly opened HeadSpace.

"Mental health is a big issue in society and any little thing we can do is a good thing," Katie Wright said.

"Each day we do a different amount of push ups, so for example one day we could be splitting 200 push ups between the four of us."

Each day, the target number of push-ups to complete will reflect a different statistic to do with mental health in Australia.

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For example, 45 push-ups to recognise the percentage of Australians who will experience a mental health condition over their lifetime, Katie explained.

The challenge to complete 3128 push-ups in total, represents the number of lives lost in Australia due to mental health issues in 2017.

This is the first year Katie has taken on the challenge, but would like to continue to do the challenge each year.

"We did day one's push ups together as a team but since our schedule is all different, we complete them when we can," Katie said.

Katie said if you miss doing your push ups you can catch up the next day but you aren't allowed to get ahead in your number.

"People are so creative to get their push ups down, people do it at the hairdressers with foils in, the spirit is great," she said.

Katie's team known as the 'Push-Pops' have completed 1153 push ups so far and have raised $110.

Katie first became aware of the challenge when it popped up on her Facebook page as something recommended to her.

"I recently did a charity challenge of running or walking 100 kilometres in 10 days, and I just thought this looked like a worthy cause," she said.

Katie said the most difficult part about the challenge was finding the time to fit the push ups into her everyday routine.

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"We just want to raise awareness about our local HeadSpace office that has opened, and supporting this cause and talking about mental health may help others to open up about their struggles and experiences," she said.

Katie said she believed there was still a stereotype around speaking out about mental health.

"People think it is taboo to talk about it, especially in the workplace, because sometimes you are expected to be coping and you aren't, this isn't a sign of weakness at all," she said.

"This challenge is a good excuse to talk about our mental health."

Another positive about the challenge, is how it promotes fitness, Katie said.

"One of the leading suggested aids in improving mental health and eliminating depression is fitness as it does raise the good chemicals, endorphins," she said.

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"It also gives you the opportunity to meet people who are like minded, being part of a community really helps.

"And as I work at LINC, they have said they are happy to get on board and donate."

If you are interested in helping the team out, you can donate to their cause here.