What is one common exercise method used in group fitness classes?

Circuit training is a common exercise method used in group fitness classes because it combines a variety of exercises into a structured format that allows participants to engage in multiple movements targeting different muscle groups in a relatively short amount of time. This method is highly effective for improving overall fitness, including strength, endurance, and flexibility.

In a circuit training format, participants typically move from one exercise station to another with minimal rest, keeping the intensity high and encouraging a dynamic workout environment. This is particularly beneficial in a group setting, as it fosters motivation and camaraderie among participants. It also makes it easier for the instructor to monitor the group and provide guidance on form and technique while keeping the energy levels up.

Other methods mentioned in the options, such as yoga flow, while popular and beneficial, focus on a more meditative and flexibility-based approach rather than the high-intensity, varied format seen in circuit training. Live sports competition typically involves specific skill sets and may not be conducive to a group fitness structure suitable for all levels, while solo workouts lack the dynamic and community aspect that is integral to many group fitness classes.