Cutting-edge cable machines like those made by Life Fitness or Keiser are adjustable in so many different ways that you can dictate almost any movement path you can imagine, many of which are impossible with other machines or even free weights. "It's like we put a weight in your hand but allow you to control the direction of the gravity pulling on it," says Greg Highsmith, director of product development for Life Fitness. Engineers have managed to make the mechanical system almost invisible. Variations in lift ratio – how many inches the weight moves for every inch you move the handle – are another huge advantage.
Credit: Courtesy Keiser
Powered By ZergNet
The New NFL
Andrew Luck and the Super-Athletes Making Football Faster, Meaner, and More Fun
Plus: A New Approach to Heart Health
ON NEWSSTANDS NOW
Americans Kidnapped Abroad: The Forgotten Hostage Crisis
The Last Word: Pierce Brosnan
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.