What does the term "rep" refer to in resistance training?

The term "rep" in resistance training specifically refers to a single complete movement of an exercise. This means that when a person performs one full cycle of a movement—such as lifting a weight from start to finish and then returning it to the starting position—this constitutes one repetition. The concept of repetitions is fundamental to understanding how resistance training is structured, as it allows individuals to quantify and track their progress over time, for example, by increasing the number of reps or the weight lifted. Understanding this terminology is critical for designing effective training programs and ensuring correct exercise execution.

The other options describe different aspects of fitness and training but do not accurately define what a "rep" is. A set of exercises performed in sequence pertains to a different concept; the total weight lifted refers to overall performance metrics rather than the individual movements, and the duration of a workout session relates to time management during training rather than the specific actions taken within that session.