Michell Obama aka FIRST LADY!!

WASHINGTON (AP) — At last, the secret to first lady Michelle Obama’s sculpted arms? Tricep pushdowns and hammer curls.

So says Cornell McClellan, Mrs. Obama’s longtime personal trainer, who described the workout routine of his famous client in the October issue of Women’s Health magazine. She began working with McClellan in 1997 at his Chicago fitness studio.

“She’s truly committed herself to the importance of health and fitness,” he says.

McClellan said that at the end of an intense routine of cardio workouts and weight training, Mrs. Obama finishes with the “arm-shaping superset” of tricep pushdowns and hammer curls to tone one of the most commented-upon pair of arms in the world. Mrs. Obama often wears sleeveless outfits.

How to get arms like Mrs. Obama’s?

Perform one set of tricep pushdowns using a straight bar attached to the high pulley of a cable station and then, without resting, follow with a set of hammer curls using dumbbells. Immediately repeat the entire process until two or three sets of both exercises have been completed.

Mrs. Obama cited small changes to her family’s diet that she says have made a difference. They include eliminating processed foods, cutting back on sugary drinks, eating more fresh fruits and vegetables, eating together more as a family and teaching her daughters how to read food labels.

She said she tries to be conscientious about health and fitness because her family is like many others — too busy to think about it every day.

The Obama’s interview with Men’s Health, Women’s Health and Children Health will hit newsstands on Sept. 15.

Michelle on the cover of Children's Health