Michelle Obama does squats, burpees and one-legged push-ups on The Biggest Loser

So THAT'S why she looks so toned! Michelle Obama does squats, burpees and one-legged push-ups on The Biggest Loser

|

UPDATED:

21:07 GMT, 11 April 2012

Michelle Obama showed off her exercise prowess on last night's episode of The Biggest Loser.

Taking on multiple sets of jumping jacks, burpees, push-ups and
sit-ups in her stride, the show's trainer was compelled to exclaim,
'look how strong that woman is!'

It was the First Lady's second appearance
on the show, and this time she hosted contestants at the White
House for an intense fitness session.

White house workout: The First Lady hosted an exercise session with The Biggest loser contestants, showing off her skill with multiple sets of squats and one-legged push-ups

White house workout: The First Lady hosted an exercise session with The Biggest loser contestants, showing off her skill with multiple sets of squats and one-legged push-ups

No pain no gain: Joining the contestants in a sweat session, she showed contestants how she keeps her great shape

No pain no gain: Joining the contestants in a sweat session, she showed contestants how she keeps her great shape

No pain no gain: Joining the contestants in a sweat session, she showed contestants how she stays in such great shape, leading an active life

The 48-year-olds guest appearance was part of the 'Let's Move!' initiative, a programme helping U.S. children to lead a healthier lifestyle.

She told the cameras before taking to the floor: 'I don't know if I'm ready for a workout, but I will make a complete fool out of myself if it means that more children and families get excited about that idea of incorporating nutrition and fitness into their lives.'

As a health advocate for America, the First Lady proved she is exceptionally fit, with great posture and strength in each push-up and burpee.

Exercise expertise: Michelle Obama's guest appearance on the show is part of her 'Let's Move' initiative

Exercise expertise: Michelle Obama's guest appearance on the show is part of her 'Let's Move' initiative

Fabulously fit: Taking on multiple sets of jumping jacks, burpees, push-ups and sit-ups in her stride, the show's trainer was compelled to exclaim, 'look how strong that woman is!'

Fabulously fit: Taking on multiple sets of jumping jacks, burpees, push-ups and sit-ups in her stride, the show's trainer was compelled to exclaim, 'look how strong that woman is!'

Contestants likened the exercise session to 'working out with a friend,' and were all smiles as they tried to keep up with the First Lady, giggling at her comments to the show's trainer, Bob Harper.

She peppered the workout with quips like, 'He's so mean,' referring to Mr Harper.

'Why are you standing by me Get away from me' she continued as he stood over her, and then finally, 'We just did these,' referring to his request for another set of one-legged push-ups.

Let's move: The First Lady talks to contestants about health and fitness and joins them in a group workout

Let's move: The First Lady talks to contestants about health and fitness and joins them in a group workout

Sweat session: The 48-year-old put her all into the workout, showing the contestants how it's done

Sweat session: The 48-year-old put her all into the workout, showing the contestants how it's done

Toned torso: Showing off her famous arms, the Fist Lady looked fit, healthy and glamorous before her workout her workout began

Toned torso: Showing off her famous arms, the Fist Lady looked fit, healthy and glamorous with the show's trainer before her workout

One of the contestants, Buddy, gave her a fist-pump as she entered the room, and remarked: 'I'm going to call her my firstie, you know, like my bestie, but that's my firstie. That's my Michelle Obama.'

Not letting the novelty of working out with the First Lady overshadow her wider goals, she told the cameras about her 'Let's Move!' initiative.

'An important part of the Let's Move message is that families can come together around fitness and nutrition.

'It's much more fun to exercise when you're doing it with people that you love, you can help motivate one and other, that's what's so important for our children – if our children see us as parents doing it, they can change the whole dynamic of a young person's life,' she explained.