What does the term "repetition" signify in weight training?

The term "repetition" in weight training refers to one complete motion of lifting and lowering an exercise weight. This definition is fundamental in the context of resistance training, as it captures the essence of performing an exercise. Each repetition involves both the concentric (lifting) and eccentric (lowering) phases of the movement, allowing the muscles to engage fully throughout the motion.

Understanding repetitions is crucial for designing effective workout programs, as they help in establishing the appropriate volume and intensity for training. By tracking the number of repetitions performed in a set, trainers can gauge workout intensity and fatigue, which are essential for progress and adaptation in strength training.

In contrast, the other options pertain to different aspects of a weight training regimen. While resting periods are important for recovery between sets, they do not define what a repetition is. The number of sets relates to how many times a specific number of repetitions is performed, and the total weight lifted in a session represents overall volume but does not define a repetition itself. Thus, recognizing what constitutes a repetition is key for understanding its role in training protocols.