Here are some questions and answers from the National Institute of Health that can help you choose the right kind of activity for you. If you ve been inactive for a while, you should begin with less strenuous activities that will allow you to become more fit without straining your body. Once you are in better shape, you can change to a more vigorous activity. If you are over 40 and have not been active, avoid strenuous programs such as jogging when you re first starting out. Walking and swimming are especially good forms of exercise for all ages.
Outdoor activities offer variety in scenery and weather.
Indoor activities offer shelter from the weather and can offer the convenience of exercising at home. Some activities such as bench stepping, running in place or jumping rope can be done indoors or outdoors. If your activity can be seriously affected by weather, consider choosing a second, alternate activity. Then you can switch activities and still stay on your regular schedule. Consider moving other activities around.