Answer:
Factors that influence the level of cardiorespiratory fitness a person is able to achieve, includes; Age, gender, genetics, body composition, and a person's level of conditioning.
Age; As a person ages, he or she loses cardiorespiratory endurance. Generally, oneʼs fitness begins a gradual decline after age 25.
Your genetic makeup affects both your initial levels of cardiorespiratory endurance and your capacity to improve it. An individualʼs ratio of slow- to fast-twitch muscle fibers can make a difference is his or her fitness level.
Gender; Gender has an effect on cardiorespiratory endurance.
After puberty, males on average retain higher cardiorespiratory fitness levels than females because they have higher hemoglobin levels and carry less body fat than females.
Body composition; Your percentage of body fat influences your cardiorespiratory endurance. Carrying high amounts of body fat reduces aerobic capacity because fat is “extra baggage" that does not help you burn calories.
A person's level of conditioning; Your level of conditioning can affect your cardiorespiratory endurance. If you are currently doing no aerobic activity at all, you can improve your fitness level by beginning a personal fitness program that includes aerobic exercise.