because their nervous system cannot handle the stress of a high weight.

There are many formulas used to estimate 1RM using the submaximal method. In the formulas below, is the number of repetitions performed and is the amount of weight used (note that is a factor of each formula, so the unit of measurement doesn't matter).

Of the formulas, the Epley and the Brzycki formulas are most commonly used. Epley and Brzycki return identical results for 10 repetitions. However, for fewer than 10 reps, Epley returns a slightly higher

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