Rest Day
Stamina isn't just grit. It's a measurable marker of how efficiently your cells make and use energy, and the data behind it is staggering: one study found every 1 mL/kg/min bump in VO2 max bought an extra 45 days of life. In this article from the CrossFit Medical Society, the authors break down the cellular science — mitochondria, AMPK, PGC-1a — behind why CrossFit's high-intensity, constantly varied approach may be one of the most effective ways to build the metabolic resilience tied to a longer, more independent life.
Find a gym near you:
View the CrossFit map
Comments on 261008
3 Comments
Hang power cleans 105#
TTB
* 1 wall walk after each round
10:56
Hero Thursday's
"Rankel"
Complete as many rounds as possible in 20 minutes of:
225 pound Deadlift, 6 reps
7 Burpee pull-ups
10 Kettlebell swings, 2 pood
Run 200 meters
6R + ~25 meters. Finished round 7 after the whistle. Runs completed on air assault runner as I did this workout at the YMCA. Only posted once on 110107. With honor.
U.S. Marine Corps Sergeant John Rankel, 23, of Speedway, Indiana, assigned to 3rd Battalion, 1st Marine Regiment, 1st Marine Division, 1 Marine Expeditionary Force, based out of Camp Pendleton, California, was killed on June 7, 2010, while supporting combat operations in Helmand Province, Afghanistan. He is survived by mother and stepfather Don and Trisha Stockhoff; father and stepmother, Kevin and Kim Rankel; and brothers Nathan Stockhoff and Tyler Rankel.