What does "repetition" refer to in weight training?

In weight training, "repetition" specifically refers to the number of times an exercise is performed consecutively without resting. For example, if a lifter does 10 bicep curls in a row before taking a break, they have completed 10 repetitions of that exercise. Focusing on the number of repetitions is important because it helps determine the intensity and volume of a workout, which ultimately can affect strength, endurance, and muscle hypertrophy. Understanding this concept is crucial for structuring an effective training program, as the number of repetitions can vary based on the lifter’s goals, such as building strength, endurance, or muscle size.