Your muscle fibers are equipped with mechanosensors that detect force, not elapsed time. Hypertrophy is driven by mechanotransduction, the force PERCEIVED by individual fibers, paired with the recruitment of high-threshold motor units. Time under tension is a result of the work, not the goal. What matters is proximity to momentary muscular failure. If a set is performed until no more reps can be completed with proper form, the nervous system has no choice but to recruit high-threshold motor unit

Medical School - EKG Lesson 4: Left Ventricular Hypertrophy

Training Phases for Hypertrophy | Hypertrophy Made Simple #11