Carisbrook's Lily Cain has spent 121 minutes partially suspended in mid air since the start of the month.
The 11-year-old is taking part in The Big Bounce, a new campaign by Cystic Fibrosis Victoria which encourages participants to commit to bouncing on a trampoline everyday for the month of July to spread awareness about cystic fibrosis.
Lily, who was diagnosed with the condition via a routine heel prick test at birth, has committed to bouncing for 11 minutes each day.
"Lily needed her first 'tune up' in nine years for 11 days at the Royal Children's Hospital this year in March and found the experience a little daunting but regained her verve soon after returning home," her mum, Nicole Cain, said.
"She has set herself the challenge of bouncing on her trampoline for 11 minutes each day in July; one minute for every year she has lived with her diagnosis."
The challenge was all about giving back to Cystic Fibrosis Victoria, she said.
The not-for-profit organisation has supported the Cain family through things such as a break away in a holiday cabin, and assisted with payments for activities such as dance classes.
As well as material assistance for families, CFB also advocates for greater understanding, better treatments and support options to help cystic fibrosis sufferers lead fuller lives.
More than 700 Victorians living with cystic fibrosis require significant daily medications and physiotherapy and frequent hospitalisation.
CFV chief executive Felicia Welstead said The Big Bounce was a fun way to spread awareness about cystic fibrosis and promote the benefits of trampolining.
"Trampolining is an activity that people of all ages and abilities can enjoy; it's not only fun but it’s good for your health," she said.
"Trampolining is a terrific form of physiotherapy for people living with CF, who need to take exercise each day to keep their lungs in shape."
According to the CFV website, 10 minutes of bouncing on a trampoline can be the equivalent of a 30-minute run.
Ms Welstead said it was the first year the campaign had been held in Australia.
“The Big Bounce has been a success for our sister charity in the UK, so we thought we'd jump on board here,” she said at the launch of the campaign.
Mrs Cain said Lily found bouncing a more fun activity compared to traditional cystic fibrosis physiotherapy techniques.
"She's been using the trampoline since she was two," she said.
"(Lily is a) very active child, whatever she can do, she does."
Mrs Cain said Lily had exceeded her fundraising goal of $500 "before the first bounce".
"We're up to about $1450, but even though she's met her goal, she wants go to go further," Mrs Cain said.
Part of Lily's month-long challenge is to share about her experiences on her page on the fundraising website, Everyday Hero.
To keep it interesting, Lily changes the way she jumps every day, either by jumping with someone different or doing something different.
Sometimes it meant both, such as the superhero themed-day recently where Lily and some of her friends dressed as up as superheroes.
"She also bounced with her cousin the other day, for his 21st birthday, they had balloons and it was a birthday theme," Mrs Cain said.
Lily said she enjoyed bouncing with different ideas and different people each day.
“Today I put heaps of sheets of paper on the trampoline's mesh and did some painting while bouncing," she said last week.
To donate to Lily's fundraiser, visit her page at www.thebigbounce.everydayhero.com/au/LilyCain