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When assessing Actual 1 Repetition Max (RM), which weight percent is typically used for the second set?

  1. 50-60% of 1 RM

  2. 70-75% of 1 RM

  3. 85-90% of 1 RM

  4. 95-100% of 1 RM

The correct answer is: 70-75% of 1 RM

When assessing Actual 1 Repetition Max (1 RM), the typical approach involves using a weight that allows the individual to perform a moderate number of repetitions with good form before attempting maximal lifts. The second set is generally performed at 70-75% of the calculated 1 RM. This percentage is chosen because it is heavy enough to challenge the individual while still allowing them to demonstrate multiple repetitions, which is crucial for accurately gauging their strength and readiness for a true maximal effort. Using 70-75% encourages effective muscle recruitment and prepares the individual both physically and mentally for heavier lifts, thus supporting a more accurate determination of their actual 1 RM on subsequent attempts. In contrast, lighter or excessively heavy weights could lead to underestimating or overestimating their maximum capacity.