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Shape Up & Drop 10 Step 4 — Physical Activity — What's Enough? What's Too Much? We give you the facts, you make the decisions We have a lot to tell you in this step about the use of exercise for weight management. Here are the major topics we will be covering in Step 4:
What exactly is the role of exercise in weight management? The answer to this question is two-fold:
Most people using Shape Up & Drop 10 are in the WEIGHT LOSS phase, where cutting calories is the key strategy. The rationale for the delay in discussing exercise is that for now, it is more important for you make the changes in your eating and drinking habits described in Steps 1 and 2, and to start tackling the important factors that will support behavioral change discussed in Step 3. But sooner or later you have to come to grips with exercise, because the data in the scientific literature strongly suggest that you will regain any weight you lose if you don't become more physically active. The purpose of Step 4 is to explain what type of exercise is needed for successful weight management and how much. We will help you prepare for this important change in your lifestyle so that you won't be overwhelmed. It is important that you be ready to take on this newest challenge. We would like to suggest that you read every word in Step 4 and think carefully about how you want to proceed. If you are getting ready to change your life by becoming more physically active, there are a lot of issues you will need to think about so that you can sustain this change throughout the rest of your life. Exercise has a beneficial effect on almost every physiological system in your body. If you make one and only one change in your lifestyle, we hope you will choose to increase physical activity. It will offer you the most "bang for your buck" in the sense that it improves your metabolic profile and does more to improve your overall health than any other behavioral change. Here are some of the benefits of regular exercise:
The key benefit of exercise for our purposes is improved weight management. There is a large database of information on thousands of people who have taken off 30 pounds or more and kept it off for up to five (or more) years. This database makes it clear that exercise is one of the key factors associated strongly with successful weight management. But for many people, years of sedentary behavior and many pounds of extra weight mean that careful planning and thought must go into making this important lifestyle change. You may be feeling that increasing your physical activity is too much for you to deal with right now. There is no hurry. The attitude or mindset that will work best is to TAKE THE LONG VIEW — making the changes slowly and gradually with the thought in mind that these are changes you will sustain for the rest of your life. To Get Started, Take a Two Step Approach — first reduce sedentary behaviors — then increase physical activity
How much exercise is enough anyway? How much exercise is enough? … "Eight minutes in the morning?" … "30 minutes a week?" … "10 minutes, three times a day? It is all so confusing. We will try to set the record straight about what is recommended and why. The first recommendation we will consider is the U. S. Surgeon General's recommendation for 30 minutes of moderate physical activity each day, preferably every day of the week. This recommendation was published in 1996 in the Surgeon General's Report on Physical Activity and Health. It is supported by solid scientific evidence that this amount of exercise will yield enhanced fitness, burn a significant number of calories, and improve overall health and reduce your risk of disease. If you have been inactive for several years and you are carrying around excess weight, this recommendation is an appropriate activity goal for you to achieve over the next six months. But if you have any health concerns, you should discuss them with your health care provider first. If you are given approval to proceed, we suggest that you start out by aiming for 5 minutes a day to start with for the first two weeks. If you feel fine, you can add an additional 5 minutes a day for a total of 10 minutes a day for the next two weeks. You can work in this fashion making small increases in the amount of activity over an extended period of time until you get to the 30-minute mark. Make a plan for yourself in your journal to reach the goal of 30 minutes a day over the next six months. In your plan, make sure you set milestones along the way and indicate the reward you will give yourself for achieving each milestone. [NOTE: Keep in mind that you don't have to exercise continuously. Three 10-minute sessions in a day are just as good as one 30-minute session.] To make it more fun, many people have benefited from PURCHASING A PEDOMETER and keeping track of their steps in their journal. If you plan to use this approach, keep in mind that 30 minutes of walking a day translates to roughly 5000 STEPS A DAY. So if you plan to track your steps, here is how you proceed: The Shape Up America! 5000 Steps Program for Better Health
Is 30 minutes a day enough to manage my weight? Thirty minutes a day is enough to make a big difference in your health and fitness, and of course, it is making a contribution to your weight management. But studies show that 30 minutes will not be enough exercise to prevent weight gain for most people. In the Fall of 2002, the Institute of Medicine (IOM) issued a landmark report that addressed the amount of exercise needed for weight management. The IOM reviewed the scientific literature on weight management and exercise and concluded that 60 minutes of exercise at a moderate intensity would suffice for the majority of people seeking to manage their weight. Are you saying that to LOSE WEIGHT I have to exercise 60 minutes a day? NO, that is not what we are saying. We are saying that cutting calories is the single most effective way to lose weight and ANY AMOUNT of exercise you do in addition will help to increase the amount of weight loss. But exercising 60 minutes a day is the amount of exercise needed to prevent WEIGHT GAIN. What this means is that while you are losing weight, it is best to focus on learning about portion control and choosing a healthier diet. Once you have gained mastery over those skills, you can think about aiming at the Surgeon General's recommendation of 30 minutes a day using The Shape Up America! 5000 STEPS Program for Better Health described above. Many weeks or months later (depending on how much weight you need to lose), when you are getting close to your goal weight, you need to start preparing for the IOM recommendation of 60 minutes a day of "moderate intensity" exercise to prevent regaining the weight you have worked so hard to lose. If I start exercising 60 minutes a day, can I go back to my old eating habits? NO. If your old eating habits are OVEREATING (or over-drinking) habits, then returning to your old habits will only mean regaining the weight. What does "moderate intensity" exercise mean? The IOM defines "moderate intensity" as walking at a brisk pace of "4 to 5 miles per hour." That is a pretty fast pace. If you walk a total of 5 miles in 60 minutes, you are walking a distance of one mile in only 12 minutes. Many people find it unpleasant to walk that fast although we know some people who can handle that pace just fine. I just can't walk that fast, but I could walk the 5 miles if I could take a longer time. That is perfectly OK. The fact is that if you take extra time to walk the 5 miles, you will accomplish the same thing. We know people who walk a distance of 5 miles in 70 or 80 or even 90 minutes. Some people cover that distance over the course of the entire day. All of those approaches are perfectly OK as long as the result is the same — prevention of weight gain. What if I want to walk or jog at a faster pace so that I can cover 5 miles in less time? You can jog or run 5 miles in less than 60 minutes. That is perfectly OK. But it is not necessary to run or jog if you don't want to. In fact, we never recommend exercising at a level that is any harder than "somewhat hard." We don't want you to strain or work too hard for two reasons: First, it is unnecessary to do so to get the health benefits of exercise, and secondly, it may deter you from exercising because you may find it unpleasant. What if I can prevent weight regain by walking only 4 miles or even 3 miles. Is that OK? Yes. It is. For good health, you need to meet the Surgeon General's recommendation of at least 30 minutes a day. Beyond that, you need to keep experimenting with yourself to find out how much more exercise YOU need to achieve weight management. That is your own personal goal because that is what works for you. Period. I can't walk for one hour at a time, but I might be able to break it up into smaller segments. That is perfectly fine. Studies show that smaller time segments add up to the same health benefits as continuously exercising for the same total length of time. So three ten-minute bouts of exercise are just as beneficial as one continuous bout of 30 minutes. How many steps does walking 4 to 5 miles equate to? Walking 5 miles is roughly equivalent to 10,000 steps. When you are ready to tackle this more ambitious goal, you can use a pedometer and The Shape Up America! 5000 Steps Program for Better Health described above. Just keep building up your steps (slowly and gradually) until you reach the goal of 10,000 steps a day. The Role of Strength (Resistance) Training in Weight Management For years, the only type of exercise that was considered important for weight management was aerobic exercise like walking, running, jogging, swimming, dancing or any other of dozens of activities involving a lot of movement of the arms and legs. The role of strength training, also known as resistance training, in weight management was not well studied. In the past 5 to 10 years, that has started to change. It is now recognized that strength training has an important contribution to make to weight management. Strength training involves using your muscles to apply force to lift a weight a specific distance, using a specific form, usually 12 to 15 times. The exercise is sometimes repeated a second time after a brief period of rest. Strength training is designed to target or focus on exercising specific muscle groups. A properly designed strength training program will address all major muscle groups in your trunk (abdomen, chest and back), as well as your arms and legs. The exercise will help to tone and strengthen the muscle and, if the exercise is done correctly, using proper form, it will benefit the entire length of the muscle. Strength training requires proper instruction from a qualified instructor. We recommend evaluating the credentials and training of a personal trainer you may be considering. The American College of Sports Medicine (ACSM) in Indianapolis, IN and the American Council on Exercise (ACE) in San Diego, CA have certification programs. Because you can injure yourself if you do not do strength training correctly, we do not recommend you consider strength training without personal one-on-one guidance on safety procedures and the maintenance of proper form. Strength training is of benefit to both men and women. Many women are reluctant to get involved in strength training and if this includes you, go to the library and get a copy of Miriam Nelson's book, Strong Women Stay Thin. Dr. Nelson's book will help change your mind and you may find it motivating. Strength training is of benefit to adults of any age. Studies have found it helpful in improving the strength and fitness of people in their ninth decade of life, and improved muscular strength increases the likelihood that you will keep physically active. Strength training does not always produce weight loss — but if your program is properly designed and conscientiously performed using correct form for an extended period of time (10 to 12 weeks or more), it will reliably cause a reduction in body fat and an increase in muscle mass. In many cases, the waist circumference and hip circumference will decrease so your clothes will fit more comfortably. Complementing your exercise program with resistance training conserves your lean (muscle) tissue, causing more of the weight to be lost as fat. Strength training deserves a permanent place in your exercise plan for life.
Why doesn't strength training always produce weight loss? Because fat is less dense than muscle. So as you build up your muscle and decrease your body fat, you are replacing less dense fat tissue with denser muscle tissue. Thus, as your muscle mass increases, you can actually gain a little weight even as you lose inches. This is upsetting to many women who write us to find out what is going on. This can usually be avoided by a carefully designed program that involves portion-controlled, healthy eating combined with a balanced program of aerobic exercise and strength training. Make sure the weight used is not too heavy and keep your repetitions to no more than 12-15. Again, you should work with a qualified trainer on designing a program that is right for you. Moderate physical activity usually has no effect on appetite, but if you are exercising and working out a great deal, it may stimulate your appetite and cause compensatory eating — increased eating in response to exercise. If you are not alert to this possibility, compensatory eating may cause weight gain. This can be monitored by using your journal and logging your food intake. Again, this is not usually a problem for people doing moderate exercise, but it is something to keep in mind. Protecting Your Joints (knees and hips) for the Long Haul If your BMI is above 25, careful thought must be given to protecting your joints when you exercise. Your goal should be to protect the health of your hips and knees for the long term so that you can exercise throughout your life. Consider exercises that will minimize pounding on the joints and compacting the spine. Even walking (which is appropriate for most people) may be difficult and painful for people carrying around many excess pounds. To begin with, swimming or water exercises or using a recumbent bike may be the right choice. As weight is removed through changes in dietary habits and portion control, the use of an elliptical trainer may be added, if appropriate. If you are starting out your exercise program with pre-existing joint pain, or if you develop it along the way, we can not emphasize enough how important it is to get appropriate medical help and professional guidance on the choice of exercise that is right for you. An investment in a physical therapist at this stage will help you protect your joints for the long haul. If you are considering strength training, your program can and should be properly designed to strengthen and protect your joints. Since overweight people are at much higher risk for developing joint problems, an investment in protecting your joints today is truly an investment in successful weight management in the future. Lack of Time and Other Barriers to Exercise I just don't have enough time to exercise… Lack of time is the most commonly cited barrier to exercise. Another important barrier is: "I don't see enough of my kids as it is, I just can't take even more time away from them to exercise." The fact is that all of us are busy to the breaking point. We recognize that your complaints about lack of time are completely legitimate, so here are two suggestions to keep in mind:
I'm just too tired to exercise. Many people complain that they are too tired to exercise. It is indeed exhausting just to think about the hectic lives that most of us lead. All that we can say in response is that exercise is actually energizing. It adds to your sense of vitality and brightens your outlook. It reduces stress and helps you focus. It will also improve your mood since exercise has been shown to have an anti-depressant effect. Using exercise to elevate your mood will help you avoid all of the side effects and expense of anti-depressant medications, many of which cause weight gain. Summary
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