NSCF Certified Personal Trainer Practice Exam 2025 – All-in-One Guide to Achieve Certification Success!

The term that describes a method of training where the exercise intensity and rest intervals are varied is known as interval training. This approach involves alternating periods of high-intensity effort with periods of low-intensity recovery or rest. By varying the intensity and duration of both the exercise and rest phases, interval training can effectively improve cardiovascular fitness, enhance muscular endurance, and increase overall performance.

This method allows for a greater challenge and engagement, as participants may push their limits during the high-intensity phases and recover appropriately during the rest intervals. Consequently, interval training is highly customizable and can be adapted to various fitness levels and goals, making it a popular choice among trainers and athletes alike.

In contrast, steady state training typically involves maintaining a consistent level of intensity over the duration of the workout, while circuit training focuses more on completing a series of exercises in succession with little rest in between. Progressive training emphasizes gradually increasing the intensity, volume, or complexity of workouts over time but does not inherently incorporate varied rest intervals and intensities as a core principle.