U.S. Marine Corps photo by Lance Cpl. Colton Brownlee/Released 210622-M-ET234-1189.JPG
Jul 7, 2021
U.S. Marine Corps Staff Sgt. Ashlee Grissom, motor transport operations chief, 7th Marine Regiment, 1st Marine Division performs the push-up during an Aerobic Capacity seminar course at Marine Corps Air Ground Combat Center, Twentynine Palms, California, June 22-23, 2021. The 2-day course will teach the Marines a thorough understanding of how to improve their recovery as well as develop their cardiovascular "engine" and muscular stamina. (U.S. Marine Corps photo by Lance Cpl. Colton Brownlee)
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