Arthur Jones built his reputation on the Nautilus machines and the concept of High Intensity Training. He advocated for brief workouts that pushed the body to its limits. Yet, for leg development, Jones pivoted to a different strategy that prioritizes endurance and high volume over heavy loads.
Jones argued that the legs function differently than the upper body. He believed that while chest and arm muscles respond best to short, heavy bursts, leg muscles thrive on high-repetition work. He frequently suggested dropping your standard training weight by 5 to 10 percent and pushing for a massive increase in total repetitions. The goal is to reach 50 reps per leg or 100 reps total in a single session.
This method is not for the average gym-goer. Jones himself noted that the process is painful and time-consuming. It serves as an extreme example of how to apply progressive overload to lower-body training. By slightly reducing the resistance, you open the door to a higher volume of work, which can spark growth in stubborn muscle groups. Once you hit the target rep range consistently, you add weight and restart the cycle.
You do not need to aim for 100 reps immediately to see results. The core takeaway from this old-school philosophy is that productive muscle-building does not require heavy, low-rep sets at all times. Experimenting with higher-rep ranges provides a unique stimulus that your muscles likely do not see during a standard powerlifting routine. Even a modest increase in your typical repetition range can challenge your legs in ways that heavy compound lifts sometimes miss. If you want to change your routine, drop the weight, boost your volume, and track how your body responds to the change.