Michelle Obama’s Let’s Move! campaign – in pictures Michelle Obama promotes her Let's Move! initiative, which began two years ago to address the problem of childhood obesity Tweet Michelle Obama participates in a tug of war with Jimmy Fallon in the Blue Room of the White House during a Late Night with Jimmy Fallon taping for the second anniversary of the White House Let's Move! initiative Photograph: Chuck Kennedy - White House/Reuters Talk show host Ellen DeGeneres challenges First lady Michelle Obama to a press-up contest during a taping of The Ellen DeGeneres Show in Burbank Photograph: Michael Rozman/AP First lady Michelle Obama jumps with 400 children at an event on the South Lawn of the White House to launch a challenge to help break the Guinness World Records title for the most people doing jumping jacks in a 24-hour period Photograph: Yuri Gripas/Reuters Michelle Obama at a football clinic in Washington DC to highlight the Let's Move! campaign and the importance of children getting at least 60 minutes of active play each day Photograph: Jim Watson/AFP/Getty Images Michelle Obama dances during a surprise visit to Alice Deal middle school for a Let's Move! fitness event in Washington Photograph: Molly Riley/Reuters The first lady runs a 40-yard sprint for the Let's Move! campaign in New Orleans Photograph: Gerald Herbert/AP Michelle Obama uses a skipping rope at an event highlighting the work of the Physical Fitness Council at a school in Washington Photograph: Pablo Martinez Monsivais/AP The first lady plays table tennis during a Let's Move! event at the Usta Billie Jean King National Tennis Centre in New York Photograph: Samantha Appleton/The White House Michelle Obama exercises with a hula hoop during a healthy kids fair on the South Lawn of the White House Photograph: Haraz N. Ghanbari/AP The first lady plays hopscotch with students from the Make A Difference NGO, at Mumbai University in India Photograph: Punit Paranjpe/AFP/Getty Images Michelle Obama and children play double-dutch during a taping for the Presidential Active Lifestyle Award challenge and Nickelodeon's Worldwide Day of Play, on the South Lawn of the White House Photograph: Chuck Kennedy/The White House The first lady and senator Harry Reid participate in a mountain stretch during the Let's Move Outside programme at Red Rock Canyon National Conservation Area Photograph: Isaac Brekken/AP Michelle Obama exercises with children on the South Lawn of the White House in Washington during an event announcing the creation of a program to promote military family wellness Photograph: Chris Kleponis/AFP/Getty Images The first lady runs across the South Lawn during an event to promote physical activity at the White House Photograph: Jim Young/Reuters Michelle Obama shows off her muscles along with the children at the DC River Terrace school at an event to promote physical fitness in Washington Photograph: Evan Vucci/AP