WASHINGTON, D.C. — The Defense Department is considering a proposal to ban the controversial CrossFit workout program for all military members, citing the lack of a full evaluation of the exercise plan and an approved program doctrine, Duffel Blog has learned.

The exercise program — a mixture of resistance, calisthenics and aerobic exercises which stresses variation and repetition — has become wildly popular over the last decade, as many troops have become vigorous practitioners of the CrossFit lifestyle and military units have even adopted CrossFit as their official physical training plan.

In an internal memo leaked to reporters, the Pentagon outlines how it would stop military members from doing CrossFit, even in their private time.