Assisted exercises use a machine or resistance band to reduce the effective bodyweight you're lifting, making movements like pull-ups and dips accessible before you're strong enough to do a full unassisted rep on your own. An assisted pull-up machine works by counterbalancing part of your bodyweight with a weight stack, while a band looped around the bar and your knee or foot provides a similar, if less precise, reduction in effective load. This equipment suits beginners working toward their first unassisted pull-up or dip, and it's the standard bridge exercise most trainers recommend for exactly that goal, rather than jumping straight to negative reps or giving up on the movement entirely. Program assisted work in the 6 to 10 rep range, and the key programming principle here is progression: reduce the assistance gradually over weeks and months as you get stronger, rather than staying at the same assistance level indefinitely. The most common mistake is using too much assistance for too long, which makes the exercise too easy to drive real strength gains and stalls progress toward the actual unassisted goal. A second is skipping assisted work entirely out of frustration and avoiding pull-ups and dips altogether, when a structured assisted progression is genuinely one of the more reliable ways to build toward them.