The average heart rate range for adults who are over 18, including a 63-year-old woman, is 60 to 100 beats per minute, according to Cleveland Clinic. This range is based on the resting heart rate, so it isn't applicable during periods of exercise.
When a person is exercising, the body needs more oxygen-rich blood. In order to accommodate that increased need, the heart rate increases. During exercise, the maximum heart rate for a 63-year-old is 157 beats per minute, using the formula of 220 minus age that is noted under the Maximum Heart Rate tab on the Cleveland Clinic website. That means that a person of 63 shouldn't allow her heart rate to rise to a level higher than 157 beats per minute while exercising.