In strength training, the term "repetition" refers to the number of times an exercise is performed in one set. For example, completing ten push-ups without stopping constitutes ten repetitions. Repetitions are a key factor in training volume and intensity, influencing muscle growth and strength development. Adjusting the number of repetitions allows lifters to target different training goals, such as increasing endurance with higher reps or building strength with lower reps. Tracking repetitions is essential for measuring progress in any strength training regimen.