Final Answer:
In a workout routine, performing compound exercises such as squats and bench presses first, followed by isolation exercises like bicep curls and leg extensions, exemplifies the grouping of exercises with primary exercises preceding assisted exercises.
Step-by-step explanation:
Effective workout routines often follow the principle of starting with compound exercises that engage multiple muscle groups (primary exercises) before moving on to isolation exercises that target specific muscles (assisted exercises). This approach allows for maximal recruitment of muscle fibers during primary exercises, promoting overall strength and muscle development. Subsequently, assisted exercises help to target and refine specific muscle groups. For instance, a workout session might begin with squats and bench presses, addressing major muscle groups, and then transition to bicep curls and leg extensions for more targeted training.