By Daily Mail Reporter
Published: 07:55 EST, 10 April 2014 | Updated: 09:13 EST, 10 April 2014
She has less than three days to go until she takes on the gruelling London Marathon for the first time.
However Amy Willerton seemed more than happy to chat away to her trainer on Thursday as they slowed down the pace during a session in Richmond Park.
The 21-year-old showed off her toned pins in cropped, black Lycra leggings while sporting a mirrored pair of pink shades.
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Jog on! Amy Willerton was spotted training in a brightly coloured jacket in Richmond Park on Thursday, ahead of the London Marathon this weekend
The model and fitness freak certainly stood out from the crowd in her vibrant jacket, which matched her grey and pink trainers.
She tweeted earlier in the day to say: 'Never carb loaded before and feeling soooo heavy', suggesting she wasn't enjoying her new diet.
The I'm A Celebrity... Get Me Out Of Here star's long hair swished from side-to-side after being tied up in a high ponytail for the day.
Amy will be running with her father Bruce, 56, in the marathon, for the Chickenshed charity, a youth theatre company. It's something that touches home with Amy as her younger brother Ross suffers from severe autism.
Get Stonger: The former I'm A Celebrity... Get Me Out Of Here star showed off her trim figure in her Lycra gear, which included a cropped pair of black leggings
Support: The 21-year-old chatted away to her trainer as they slowed down the pace
Speaking previously about her family, she said: 'They live such a simply happy life and I think it's the fact they exercise a lot,' in an interview with the Daily Star. 'It promotes such a healthy mental state.'
Amy has admitted that up until a year ago she didn't even exercise, preferring to eat cake and without a clue about how to get started on getting fit.
That changed when she split from her then boyfriend and threw herself into the gym mainly as a distraction.
'I wanted to be strong enough to walk away from him,' she says now. 'but as my body changes and I started to feel fitter I realised I didn't need him anymore.'
No time to stop! Amy teamed her bottoms with a pink zip-up top while wearing a blue vest underneath
Are you ready? The model tweeted earlier int he day to say: 'Never carb loaded before and feeling soooo heavy!!! #LondonMarathon'
Hair flick: Amy's long blonde locks swished back and forth, after being tied up in a high ponytail
These days Amy has a personal trainer to help her keep in tip top form, but says that she prefers lifting weights in the gym to running or jogging.
Amy says that she's opted to go more for a 'walk-run' marathon where she will do nine minutes of running followed by one minute of walking and then back to running. She insists that because she gets bored so easily she likes the idea of having a formulated routine or goal to work towards.
'But I just want to survive!' she says, as this will be her first marathon, so she has not given herself any time pressure, it's more about finishing the race.
That said, Amy admits though that it's not running that has radically improved her body but lifting weights at the gym.
Challenge: Amy kept her face covered in a pair of mirrored pink, wraparound sunglasses, complete with blue tinted lenses
No time to talk: Her companion opted for shorts, gloves and a visor as they headed out early while the park looked empty
Saying that she respects bodybuilders, Amy says that she prefers to be as petite as possible and that she actually trains to get smaller rather than larger.
She adds that she likes the idea of always being feminine with her training. Normally a size eight, Amy reveals that she can go up to a 10 or down to six depending on whether she needs to look more busty or lean.
As for here current romantic situation, with the beauty queen reportedly dating former Wanted singer Max George, Amy has simply declared that she wants to keep the romance private for the moment.
She said that she has always been in long term relationships and never really dated.
Doing her bit: The previous day the fitness freak attended a photocall at Tower Bridge, alongside the other celebrities taking part in the marathon
Not a fan: Amy admits she prefers lifting weights to running to keep her body in top form
Sporting icon: Amy poses outside the iconic London landmark ahead of Sunday's gruelling challenge
As for her brief relationship with her I'm A Celebrity co-star, TOWIE's Joey Essex, Amy said simply that the situation was weird and that she felt overwhelmed.
In hindsight, she said that she felt under a lot of pressure and wanted things to happen naturally without people telling her that the relationship was just for publicity.
After realising that a proper relationship between the two would never organically happen, Amy decided Joey wasn't for her and moved on.
To sponsor Amy and her father on Sunday's London Marathon click here on Team Amy.
Sharing tips? Amy posed with Laura Wright, Amy Guy, Anna Watkins, Lucy Siegle and Charlie Webster to promote the event
No time for a dip: Amy looked fit and ready to run as she waved at photographers
Catwalk queen: Amy looked much more glamorous earlier this month at the F&F catwalk show in the capital
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