What is the equation used to estimate 1-RM?

The equation used to estimate the one-repetition maximum (1-RM) is crucial for exercise physiologists as it provides a way to gauge an individual's maximum strength capability without requiring them to attempt a maximal lift. The correct formula states that the 1-RM is determined by dividing the weight lifted by the percentage of the maximum that corresponds to the number of repetitions performed. This method allows for a safer and more practical approach to estimating maximum strength, especially for those who may not be conditioned to lift heavy loads directly.

Using the percentage from a standard table based on the number of repetitions completed allows practitioners to calculate how much weight the individual could theoretically lift for one repetition, reflecting their strength potential accurately. By rearranging this relationship into an equation, the practitioner can assess the 1-RM based on the weight lifted and the associated percentage from the table.

This approach is particularly valuable in designing strength training programs, as it assists in determining appropriate loads for various training phases or rehabilitation protocols without the risks associated with maximal lifting attempts. The clarity and reliability of this method underscore its prevalence in the field of exercise physiology.