Final answer:
Both the specific aerobic exercise and the intensity of the exercise are important factors to increase overall fitness.
Step-by-step explanation:
In order to increase overall fitness, both the specific aerobic exercise and the intensity of the exercise are important factors to consider.
Specific aerobic exercises, such as running, swimming, cycling, and walking, target the cardiovascular system and help improve cardiovascular endurance. These exercises increase the heart rate and breathing rate, allowing the body to efficiently utilize oxygen.
On the other hand, the intensity of the exercise determines the amount of energy expended and the level of challenge placed on the body. Higher-intensity exercises, such as interval training or HIIT, can help improve overall fitness and increase calorie burn. They push the body to work harder and stimulate greater adaptations.