Final answer:
In the light-to-heavy system training protocol, the number of sets per exercise typically ranges around 3-4 sets, but can vary based on individual factors such as fitness level and specific training goals.
Step-by-step explanation:
The light-to-heavy system training protocol, which is commonly used in resistance training to build strength and muscle endurance, does not have a universal set count that applies to every exercise or individual. Instead, the number of sets will depend on several factors including the individual's fitness level, the specific goals of the training, the weight being lifted, and the rest intervals between sets. Usually, an exercise might comprise 3-4 sets, which allows for a progressive increase in weight load. Beginners may start with fewer sets, and more advanced athletes may perform more sets as their endurance and strength develop.
Each set typically consists of a specific number of repetitions, which may also vary based on the program's goals. For instance, when applying the light-to-heavy system, you may start with a lighter weight and higher repetitions and then for subsequent sets increase the weight while decreasing the repetition count. This helps in adequately warming up the muscles and preparing the body for heavier loads, which are critical for muscular development and avoiding injury.
In conclusion, for the light-to-heavy system, a typical range would be 3-4 sets per exercise, but the exact number may vary from one program to another depending on the variables mentioned above.