title: Reply to Safer, Tasci, Cintosun, and Binay Safer.
authors.affiliation: Internal Medicine, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas and.
authors.forename: Felix
authors.initials: F
authors.lastname: Krainski
authors.affiliation: University of Texas Southwestern Medical Center at Dallas, Dallas, Texas BenjaminLevine@TexasHealth.org.
authors.forename: Benjamin D
authors.initials: BD
authors.lastname: Levine
mesh_terms: D001510:Bed Rest / Q000009:adverse effects*; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology*