What is the recommended minimum rest interval between repeated bouts of 5RM squats for optimal performance?

The recommended minimum rest interval between repeated bouts of 5RM (5 repetition maximum) squats for optimal performance is typically around 120 seconds. This duration allows for sufficient recovery of the muscular and energy systems utilized during such high-intensity lifts.

When performing near-maximal efforts like 5RM, the body requires more time to recuperate due to the significant fatigue and metabolic stress incurred. A 120-second rest period helps restore phosphocreatine levels in the muscles, which is crucial for sustaining high power output during subsequent sets. Additionally, this interval supports the restoration of the acid-base balance and helps clear lactate build-up, enabling muscle cells to recover effectively.

Shorter rest periods, such as 30 seconds or 90 seconds, may not provide adequate recovery, potentially leading to diminished performance in subsequent sets. Longer rest periods, exceeding 240 seconds, while not necessarily detrimental, may be more than what is required for optimal performance in this specific context, as it could unnecessarily extend workout duration without significant benefits. Thus, the selection of 120 seconds is aligned with the physiological demands of performing multiple sets at a high intensity.