Which method focuses on training specific muscle groups using primary movements?

The method that focuses on training specific muscle groups using primary movements is muscle isolation. This technique is designed to target individual muscles by minimizing the involvement of secondary muscles or joints. For example, exercises like bicep curls or leg extensions are typical muscle isolation exercises that allow participants to concentrate on strengthening a particular muscle without using other muscle groups.

Unlike multi-joint, multi-muscle activities, which engage several muscles and joints to perform a movement, muscle isolation specifically aims at enhancing the strength and endurance of targeted muscles. This can be particularly beneficial in rehabilitation settings, for bodybuilders looking to increase muscle size, or for individuals aiming to correct muscle imbalances.

Functional training, on the other hand, focuses on movements that mimic everyday activities and often incorporates multiple joints and muscle groups, while dynamic stretching primarily focuses on improving flexibility and range of motion rather than muscle strengthening. Understanding these distinctions is crucial for designing effective exercise programs tailored to various fitness goals.