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.
Mad Men's Charming Rogue
The man who played Roger Sterling, is moving on – surfing in Montauk, hanging with his son, and directing a feature film.
Plus: Greenpeace's High-Seas Avenger
ON NEWSSTANDS NOW
What's on John Slattery's Mind
Willem Dafoe's Life Advice
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.