The theme of the challenge held in June is 'Push for better mental health'.

Since 2017 it has banked 173 million push-ups and raised $7.52 million for mental health services.

Both headspace and Lifeline are supporters of the challenge.

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Community engagement officer for headspace Dubbo Amy Mines says it provides funds for "services tailored to local young people".

Officially, the challenge requires participants to do 3318 push-ups between June 1 and June 25, individually or as a team.

But people reluctant to accept the challenge are being told by the headspace team it is for "all ages and abilities" and they can "mix it up".

Participants can aim for 25 per cent, 50 per cent, 75 per cent or 100 per cent of a daily push-up target, or mix it up with sit-ups, squats or tailored exercises.

Ms Mines said events such as the Push-Up Challenge highlighted the "crucial role for services such as headspace as an entry point for young people and their families".

"Living regionally, there are few mental health services for young people," she said.

"We rely on events like the Push-Up Challenge to raise much needed money for services tailored to local young people.

"The Push-Up Challenge is all about getting involved in physical and mental health in a fun and unique way, while also highlighting something that is a huge part of today's society."

One in four young Australians will experience a mental health issue with 75 per cent of them developing before the age of 25.

Registration for the Push-Up Challenge is free.

Individuals, teams, workplaces, gyms and schools can learn more about the challenge and register for it at www.thepushupchallenge.com.au.

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