Many people divide exercise into one of two categories: strength training or aerobic. Strength training refers to activity that uses weights or a person's body weight to strengthen muscle, while aerobic exercise refers to activity that increases the heart rate for an extended period of time. Athletic trainers often advise people to wait at least forty-eight hours between strength training workouts, to give their muscles time to heal. Aerobic workouts, on the other hand, can be done more frequently.Which organisational structure does this text primarily use?

Continuous training Involves only one mode of aerobic exercise (For 20-30 minutes) Performed at a predetermined intensity Enhances cardiovascular and muscular endurance

What does the term "aerobic" specifically refer to in the context of exercise?A) Exercise with heavy weightsB) Exercise without oxygenC) Exercise with oxygenD) Anaerobic exercise

What characterizes aerobic exercise?A) Static natureB) High-intensity burstsC) Continuous rhythmic activityD) Isometric movements

How long should aerobic exercise be maintained to be considered effective?A) At least 5 minutesB) At least 15 minutesC) At least 30 minutesD) At least 60 minutes

What is the primary goal of aerobic exercise?A) Building muscle strengthB) Enhancing flexibilityC) Improving cardiovascular fitnessD) Increasing bone density