Selectorized

Selectorized refers to a type of weight training machine that uses a stack of weight plates with a pin or dial to select the resistance. Instead of loading free weights such as dumbbells or barbells, users simply move a pin or turn a dial to choose the desired weight. This mechanism allows for quick and easy adjustments between sets, making it convenient for circuit training or when multiple users are sharing equipment.

Selectorized machines work by passing the selected weight plate's force through a pulley system to the user. The weight stack is typically enclosed within a protective casing, which can enhance safety by preventing accidental contact with moving parts. This design also contributes to a cleaner and more organized gym environment compared to free weights.

The primary advantage of selectorized equipment lies in its ease of use and accessibility. It is often favored by beginners and individuals who may not be comfortable or knowledgeable in proper free weight form. The controlled movement path of selectorized machines can also guide the user through an exercise, potentially reducing the risk of injury. However, some argue that the fixed range of motion can limit muscle activation compared to free weights, which require more stabilization and engage a wider array of supporting muscles. Despite this, selectorized machines remain a popular and effective component of many fitness facilities.