Final answer:
Machine and cable weight exercises involve going through a fixed path of motion, such as using weight machines or cable pulley systems. Assisted, free-weight, and bodyweight exercises do not necessarily require a fixed path of motion.
Step-by-step explanation:
The exercises that can be done only by going through a fixed path of motion are machine and cable weight exercises. These exercises involve using weight machines or cable pulley systems that restrict the movement to a specific path, allowing the person to target specific muscles. For example, a leg press machine or a cable chest fly machine.
In contrast, assisted exercises involve the use of a spotter or a machine that provides assistance in completing the movement, but they do not necessarily require a fixed path of motion. Free-weight exercises allow for a greater range of motion and flexibility as the weight is not guided by a machine, and the person has more control over how they perform the exercise. Bodyweight exercises use only the person's own bodyweight as resistance and generally do not involve a fixed path of motion.
Learn more about Exercises with fixed path of motion