What is a primary disadvantage of circuit training?

Circuit training can indeed be time-consuming to set up, particularly when it involves a variety of exercises and multiple stations. Each exercise station may require preparation, such as gathering equipment and ensuring a safe space for participants. Depending on how many exercises are included in the circuit and how many participants there are, organizing everything for an effective circuit can take significant time and effort. This can be a disadvantage, especially in settings where time is a limiting factor, such as in a school or gym environment where multiple groups might need to use the same space.

In contrast, the other options highlight benefits rather than disadvantages. Circuit training is known for being relatively inexpensive to set up, as it often uses minimal equipment. It is also effective at improving anaerobic endurance, as it typically combines strength and aerobic exercises to elevate the heart rate. Additionally, while some circuit training methods may require planning to be effective, many can be performed with little to no prior preparation, allowing for flexibility in implementation.