National Academy of Sports Medicine (NASM) Group Fitness Instructor Practice Exam

What is a benefit of cross-training in a fitness regimen?

1. Increased injury risk

2. Improved muscle imbalances

3. Reduction in workout variety

4. Lower energy expenditure

The correct answer is: Improved muscle imbalances

Cross-training in a fitness regimen offers the significant benefit of improved muscle imbalances. This approach involves engaging in different forms of exercise rather than sticking to a single activity. By incorporating various types of workouts—such as switching between strength training, cardio, and flexibility exercises—cross-training helps to work different muscle groups and movement patterns, which can lead to a more balanced level of strength and fitness throughout the body. Individuals often develop muscle imbalances when they repeatedly use the same muscles in a specific way, which can lead to overuse injuries and performance issues. Cross-training mitigates this risk by ensuring that all major muscle groups are exercised, promoting overall strength and functional fitness, and enhancing athletic performance. Furthermore, this variety can contribute to a more well-rounded fitness profile, reducing the chance of plateauing or experiencing burnout from a single exercise routine.