The information in the following Fitness FAQs are intended to be a general guideline.
Individual people have different requirements and abilities.
It is best to consult a doctor before beginning any lifestyle change involving exercise, particularly if you have been sedentary, are overweight, or you have any sort of medical condition which might be aggravated by exercise. I have never exercised before. Most experts agree that 3-5 times per week is sufficient. Frequency, duration and intensity. Frequency refers to how often you perform aerobic activity, duration refers to the time consumed during each session, and intensity refers to the percentage of your maximum heartrate or heartrate reserve at which the activity is performed.