Question: Which of your workouts are low impact? I have knee problems and even though I love your high impact workouts, I just can't do them anymore.
Answer: I get asked this question at least once a week. If you have back or knee problems you are wise to avoid high impact aerobics. Never push to the point of pain.
The truth of the matter is, all of my workouts can be done without using high impact moves. All you have to do is keep one foot in contact with the floor. When I hop or jump...you step. "But I am not getting as much of a workout" you say. To increase your cardiovascular work, increase the size and range of your movements or the extension of your arms, all the while keeping it low impact. If you find yourself working too hard (if you feel out of breath and uncomfortable) reduce the size of your movements or eliminate your arm movements altogether. You should be able to breathe comfortably during the whole workout.