CanFitPro Personal Training Specialist Practice Test 2026 - Free Personal Training Specialist Practice Questions and Study Guide

After the first 8 weeks of resistance training, many individuals experience a significant decrease in their rate of muscle recruitment. This is because their muscles have already adapted to the new stress and routine of resistance training, resulting in less strain and effort required to perform the exercises. This decrease in muscle recruitment may seem counterintuitive, but it is actually a sign of muscle growth and strength improvement. Option A, muscle size increase, may continue to occur but at a slower rate. Option B, fatigue levels, may also decrease but it is not a significant factor that slows after 8 weeks of training. Similarly, Option D, flexibility improvements, may continue but they are not the primary focus of resistance training and therefore do not significantly slow. Thus, Option C, rate of change in muscle recruitment, is the most accurate and relevant answer to the question.