Hard-core image may intimidate some exercisers. All individuals, but may not be best suited to beginning, deconditioned or elderly exercisers who have never weight trained. Selectorized Easy to learn and use. Minimal supervision required. Defined movement for safety and proper form.
Variable resistance adapts to natural strength curve.
Can be difficult to maintain proper form on some machines that allow use of two planes of motion. Beginning exercisers or those new to strength training. Many follow the body's natural movement patterns through a defined motion. Many feature independent arm movement, allowing each limb to be exercised alone. Allows for heavier training.