Exercise is a critical component of good health, especially as you age. Exercise will help you:
The key to obtaining the benefits of exercise is to find a program and stick to it. Of course, it is useful to have a guide, and toward that end I offer the recommendations below and an exercise table you can print out and use to help you track your progress.
Key points to remember when exercising:
Listen to your body. If exercise worsens symptoms, modify your program or, if need be, stop. As your energy and health improve, you will be able to tolerate larger amounts of the aerobic exercise, which will lead to weight loss.
It helps to hire a personal trainer who can guide you through the specifics of a good exercise program. If you do use a personal trainer please be aware that many don't understand the nutritional principles discussed on this site, and it is useful to ask them to read the nutrition plan to understand the healthy direction you are taking.
Be consistent. You need at least 30 minutes of exercise a day to experience any weight loss benefits. Major studies have shown that 60 minutes a day is actually best. Ideally, the exercise should be continuous, but it could be split up into two 30-minute sections.
Start with walking if you are overweight. Most heavy people start with walking and that is an excellent choice, as it is low-risk and inexpensive. The major problem with walking, however, is that many people become fit relatively rapidly but don't increase the intensity of the workouts as they become more fit. Once you become comfortable with a routine, it is important to increase the intensity in order to continue benefiting.
Increase your intensity regularly. Ideally you should exercise at an intensity that makes it somewhat difficult to talk to the person next to you. This prevents you from having to measure your pulse or use a heart-rate monitor. If you can comfortably talk to the person next to you, you aren't working hard enough to produce the benefits you need to lose weight. However, if you are using so much oxygen with your exercise that there is not enough left over to allow you to carry on a conversation at all, then you are exercising too hard and need to cut back a bit.
Try race-walking. When outdoors, it is sometimes difficult to walk fast enough to get to the necessary level of exertion. Try race walking -- Racewalk.com has an excellent section on teaching you how to do this. However, if you use a treadmill indoors you can easily increase the incline to improve the intensity of the walking.
Try running. If you feel ambitious you can advance to running, which is my personal favorite -- I have been a runner since 1968. It is one of the most efficient and inexpensive ways to stay healthy; the only equipment required is a good pair of shoes. If you do decide to run, please recognize that most shoes will not last more than six months. If you use them longer than six months you will increase your risk of injury.
One of the downsides of running is that you must depend on the weather to cooperate. You can always use a treadmill, of course, but that adds the expense of a health club or the equipment for your home. If you are elevating your program to this level and will invest in equipment, I believe that an elliptical machine is, for reasons explained below, far superior to the treadmill in providing an optimal aerobic exercise experience.
Try an elliptical machine. Elliptical machines are generally less expensive and far quieter than treadmills and provide a complete lower body workout by rotating the use of the different muscle groups on your legs. However, you will have to be sure to use the elliptical that can incline throughout various levels. Some models have a fixed based and handles that allow you to exercise your arms, but I believe it is more helpful to exercise the different leg muscles as they are much larger than your arm muscles. The model I use is the Precor 546.
The Precor 546 is a commercial piece of equipment that will last you a lifetime as it is designed to stand up to the rigors of a busy health club. I travel all over the world and when I go into a fitness center that doesn't have the Precor brand elliptical I am saddened because I have never found an elliptical machine that was better than the Precor 546.
The 546 model does not have the levers so you can use your arms. This is a good thing as the most powerful muscles in your body are in your legs. Unlike the models that allow you to use your arms, the 546 gives you a wide range of incline choices that allow you to fully workout all the different muscles in your legs. The model with the arms has a fixed base and will not allow as complete a workout of your legs. You can save your arm workouts for resistance weight training and I believe you will have a far better more comprehensive training effect.