In order to monitor physical performance more effectively, an athlete might use:

Performance testing is a crucial tool for monitoring an athlete's physical performance because it provides measurable and quantifiable data regarding strength, speed, endurance, and skill. By regularly conducting tests, athletes and coaches can determine improvements, track progress over time, and identify areas that need further development. This tailored approach allows for adjustments in training programs based on individual performance metrics, enabling athletes to target specific weaknesses or build on strengths.

In contrast, using regular muscle relaxants could potentially impair muscle function and recovery, obscuring true performance levels. Reducing training days may result in insufficient practice and hinder the athlete's development, while increasing carbohydrate intake, although beneficial for fueling activities, does not itself provide a method for monitoring performance. Thus, performance testing stands out as the most effective choice for closely tracking an athlete’s abilities and progress in their specific sport.