Subscribe | UPI Odd Newsletter Subscribe WASHINGTON, Dec. 13 (UPI) -- U.S. first lady Michelle Obama said students, teachers and parents across the country set a world record for most people doing jumping jacks in one day. Obama said on the letsmove.gov Web site the previous record of 20,000 people was smashed when schools counted a total 300,265 people performing the exercise in a 24-hour period in October. Advertisement "Breaking the record is a huge accomplishment. But we still have a lot of work left to do to meet an even bigger goal: ending childhood obesity within a generation so all children have a chance to grow up healthy and strong," letsmove.gov said. Read More Iowa man to attempt juggling record Oldest living dog dead at 26 Man covers car in 33,000 coins Philippines eyes coin line record Stinky tofu eating record set Reddit aims for Secret Santa record