Resistance machines are fitness devices designed to help individuals build strength by providing controlled resistance during exercises. They typically use weights, bands, or hydraulic systems to create resistance, allowing users to perform various movements targeting specific muscle groups. These machines often have adjustable settings to accommodate different fitness levels and goals. Using resistance machines can enhance workout safety and effectiveness, as they guide users through proper motion and reduce the risk of injury. Common types of resistance machines include leg press, lat pulldown, and chest press, each focusing on different areas of the body to promote balanced muscle development.