US First Lady Michelle Obama triumphed at dodgeball, a potato sack race, and tug-of-war, in a television appearance marking the second anniversary of her ‘Let's Move’ childhood fitness initiative.

On NBC television's ‘Late Night with Jimmy Fallon’ show, the superfit first lady converted the venerable White House East Room into parcourse, besting the popular comedian at every game.

The broadcast late Tuesday also saw Michelle Obama defeat Fallon at two of her other specialties, hula hoops and at pushups.

The mock contest, complete with musical accompaniment from the hit movie ‘Rocky’ and slow motion footage of Obama's victories, was meant to draw attention to the first lady's fight against childhood obesity and her efforts to encourage American children's participation in sports.

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She also is on a mission to improve child nutrition, initiating a healthy eating campaign and planting a vegetable plot in part of the White House garden.