Circuit training is a form of body conditioning that combines endurance training, resistance training, and high-intensity aerobics, performed through a series of exercises called a "circuit" with little to no rest between them
. It typically involves rotating through multiple exercises targeting different muscle groups, such as upper body, core, lower body, and total-body movements, in a sequence. After completing one circuit (all exercises once), the cycle is repeated for several rounds
. This training method is designed to improve muscular strength, endurance, cardiovascular fitness, and overall body composition by incorporating both strength and aerobic exercises. It is time-efficient, often completed within 30–45 minutes, and can be customized to fit individual fitness levels and goals
. Exercises can be performed for a set number of repetitions or a timed duration, usually between 30 to 90 seconds per exercise, with minimal rest to maintain an elevated heart rate
. Circuit training was developed in the 1950s by R.E. Morgan and G.T. Anderson at the University of Leeds in England and can be adapted for various populations, fitness goals, and sports-specific needs
. It is suitable for all fitness levels and can be done using bodyweight exercises, weights, or sport-specific drills
. In summary, circuit training is a versatile, efficient workout method that alternates between different exercises targeting multiple muscle groups with minimal rest, aiming to enhance strength, endurance, and cardiovascular health
