ACE Personal Trainer Practice Exam 2026 - Free Personal Trainer Practice Questions and Study Guide

The warm-up with light resistance followed by a gradual increase in weight is typically performed during the actual 1 Repetition Max (RM) trial. This phase is critical as it allows the client to prepare both physically and psychologically for the maximal effort. Warming up helps to enhance muscle temperature, improves elasticity of muscles and connective tissues, and primes the nervous system for the heavier loads to come.

By starting with light resistance, the client can hone their technique without the influence of heavy weights, reducing the risk of injury and allowing for a more accurate assessment of their true maximal strength capability during the actual attempt. This structured approach ensures that the body is adequately prepared to handle the maximum load safely.

In contrast, other trials may not require this comprehensive warm-up approach. For example, predicted 1 RM calculations are typically based on submaximal lifts without the gradual increase during the actual attempt. The focus here is more on estimation rather than the actual physical performance of maximal reps.