Michelle Obama wins sack race - Courtesy Late Night with Jimmy Fallon
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Michelle Obama tries sack race on US chat show

Michelle Obama has been showing off her fitness prowess in a series of chat show appearances in the US.

On Tuesday's Late Night with Jimmy Fallon, she did push-ups, tried hula-hooping and triumphed in a sack race with Fallon.

It follows the First Lady's appearance on a show hosted by Ellen DeGeneres, where the pair got into a push-up battle.

Clip courtesy NBC - Late Night with Jimmy Fallon

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