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For Ruth Bader Ginsburg,Watch Chrysalis Online training for the resistance requires a resistance band.

Supreme Court Justice and fitness icon Ginsburg is the subject of an upcoming exercise manual co-authored by none other than her personal trainer Bryant Johnson.

SEE ALSO: This is what you need to do at the gym to keep up with Ruth Bader Ginsburg

Per the Associated Press, The RGB Workout: How She Stays Strong...And You Can Too! will detail the 84-year-old justice's robust exercise routine for all to follow.

Publisher Houghton Mifflin Harcourt says co-author and illustrator Patrick Welsh will illustrate Ginsburg performing each exercise, dressed in her black robe, purple leggings and sneakers.

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Ginsburg's workout routine has become a source of fascination in the last few months, due in large part to increasing concern about what an empty seat in the Supreme Court would mean in the current political climate.

Johnson gained popularity himself earlier this year when Politico joined the trainer for a run-through of Ginsburg's hour-long workout.

As reporter Ben Schreckinger found, it's no simple routine. Each session includes weight training, pushups, planks, squats, and more. And yes, she can do a real, honest-to-God pushup.

Ginsburg isn't Johnson's only Supreme Court client-- he also trains Elena Kagan and Stephen Breyer.

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