Second, when intensity is considered only as a percentage of 1RM, it doesn’t take into account
the wide variability of stress induced by that same intensity percentage on lifters of various levels
of strength and training advancement. For example, a lifter who squats 600 lbs can make progress
squatting in the 425 lb (70%) range for higher rep/volume sets across. But a lifter who squats 175 lbs
almost certainly cannot drive a strength adaptation squatting 120 lbs for any sets across. Despite being
lifts of the same “intensity,” they are obviously different stress events. It’s clear that load matters.