Posted on Wednesday, July 30, 2014 at 1:55 pm CDT
Dale Kirksey is an early-retired Texas high school teacher who lives in Arkansas. He spent his summer vacations backpacking in the Rocky Mountains. This required extensive strength and conditioning training to do. He would climb football stadiums with chains around him, and do other exercises. He has been doing functional fitness workouts since the 90's.
Source: Workouts And Bags