Gym owners like weight machines because they're easy for their clientele to use – the problem is they work only a single muscle group at a time. Trainers know that functional strength comes from barbell exercises that recruit multiple muscles, such as squats. A great guide to functional exercises is 'Athletic Development,' by Vern Gambetta.
Credit: Getty Images
Powered By ZergNet
The Adventure Issue
Eight Trips That Take Your Further
Plus: The Toughest Agent in the NFL
ON NEWSSTANDS NOW
The Devil's Obstacle Course
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.