With free weights, plates must be hoisted on and off the bar. Machines are self-contained and neat. There are no weights scattered about creating a hazard and an eyesore. In general, machines may be preferable for the novice because of their convenience, safety, and ease of operation. But cost is a factor for home exercisers.
Strength athletes prefer free weights to machines, because they yield more sports-specific gains.
Beginners may want to eventually add some free weight exercises to their routine to cover all the bases. This information is not intended as a substitute for medical treatment. Before starting an exercise program, consult a physician. Dr Stamford is director of the Health Promotion and Wellness Center and professor of exercise physiology in the School of Education at the University of Louisville, Kentucky. He is also an editorial board member of The Physician and Sportsmedicine.