“This is a wonderful tradition, and we’re bringing it back,” Trump said of the fitness test that began in 1956. An executive order Trump signed Thursday says America’s declining health and physical fitness threatens the vitality and longevity of the country.

President Trump announced he's bringing back the Presidential Fitness Test for school-aged children. It hasn't been in place since 2012.

The test was conducted in U.S. public schools for decades until it was retired by the Obama administration. Here’s what to know about it and why Trump wants it back.