Calculating Approximate 1RM
Various weight training protocols call for lifting some percentage of the lifter's 1RM. However, many consider the risk of injury when attempting a 1RM to be higher than when performing multiple rep sets. Therefore, there have been various proposals for ways to calculate an approximation of the 1RM.
There are two common formulas used to calculate the one rep maximum. If is the number of repetitions performed and is the amount of weight used (note that is a divisor of each formula, so the unit of measurement doesn't matter), then
Read more about this topic: One-repetition Maximum
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