Moderate or vigorous exercise should not be a hazard for most people providing it is undertaken as part of a regular program starting from low intensity and progressing gradually. However, some people will need medical evaluation and advice before starting a program, some may need to exercise under medical supervision and some people may only be able to undertake restricted physical activity under medical supervision.
If you answer NO to all the questions, it is reasonable for you to assume that you are in a suitable physical condition to start a regular graduated exercise program.
If you answer YES to one or more question you are first advised to consult your doctor prior to participating in any exercise program.