Alpha Progression
Exercise assistance
Exercise assistance uses external support to reduce the force a person must produce to complete a movement. An assisted exercise can use a machine, band, partner, or counterweight. In this glossary, counterweight refers specifically to assistance for bodyweight exercises such as pull-ups and dips; it is the opposite loading direction from added weight.
On an assisted pull-up or dip machine, the user kneels or stands on a moving pad connected to a selected counterweight. A larger counterweight generally supplies more assistance and makes the exercise easier, which reverses the usual machine-stack logic. The displayed value is not necessarily an exact subtraction from body mass: pulleys, friction, the moving platform, and machine design affect the relationship. Progress should therefore be compared on the same machine and setup whenever possible.
Resistance bands also provide assistance, but their force changes with stretch. A band may help more in one part of the movement than another, and color is not a standardized resistance across brands. A partner can supply assistance too, although the amount is difficult to repeat or quantify. Each method can make the movement accessible; none reproduces an unassisted repetition exactly.
Progression may mean using less counterweight, a thinner band, more controlled range of motion, additional repetitions, or better technique at the same assistance. Reducing assistance and adding repetitions at the same time makes it harder to identify what changed. Keep the relevant settings, hand position, range of motion, and execution criteria consistent.
Assistance should be enough to perform the intended movement without being launched by the machine or band. Bands must be anchored securely, and stepping into or out of a stretched band requires control. A counterweight is a scaling tool, not evidence that an exercise is only for beginners.
For counterweighted bodyweight exercises, Alpha Progression records assistance as a negative weight value—for example, −20 kg for 20 kg of counterweight. This is a logging convention for comparing sessions, not a claim that exactly 20 kg has been removed from the force at every point of the movement.
