Final answer:
The exercise principle of specificity emphasizes the importance of tailoring workouts to specific goals, while incorporating both aerobic and anaerobic exercises in a fitness routine ensures a well-rounded approach to improving overall fitness levels.
Explanation:
Specificity Principle: The exercise principle of specificity states that fitness improvements are specific to the type of training performed. For example, if you want to improve endurance, you need to engage in endurance-based activities. It is important to incorporate both aerobic and anaerobic exercises into a fitness routine because they target different energy systems. Aerobic exercises like running or swimming focus on improving cardiovascular endurance, while anaerobic exercises like weightlifting aim to build strength and power.
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