Succession of exercise repetitions.
It should be noted that any repetition range is conducive to muscle hypertrophy. Selected range actually influences the component of physical fitness which is focused on. For example, a 4-rep set is more strength-oriented, while a 30-rep set is more strength endurance-oriented. And it is this very range – i.e. the desired focus – that determines the associated workload, not the other way round.