Aerobic exercise involves regular body part (e.g., arms or legs) movements that increase workload on the cardiovascular system. It is convenient and useful to think of the intensity of aerobic exercises in metabolic equivalents, or METs. One MET represents the amount of energy used at rest, and two METs is twice that much energy expenditure per unit of time, and so on. Aerobic exercise is widely recommended in contemporary guidelines. However, guidelines also indicate that exercise regimens are contraindicated in patients with unstable cardiovascular conditions, including but not limited to uncontrolled severe hypertension (BP ≥ 180/110 mm Hg). Conditions under which stress testing should be performed before initiation of an exercise regimen have been described.37

Relax your shoulders and bend your elbows. Bring your arms up to a 90-degree angle, but no more. Straight arms can lead to swelling or numbness of the fingers. Swing your arms naturally with each step, and should be bent at the elbow at a 90? angle. Your elbows should be close to the torso, with the hands going no higher than the center of the chest on the forward swing, or past the back of the hip on the back swing. Faster arms will make faster feet.
One Stanford University study found that walking increased creative output by an average of 60 percent. Researchers labelled this type of creativity “divergent thinking,” which they define as a thought process used to generate creative ideas by exploring many possible solutions. According to the study, “walking opens up the free flow of ideas, and it is a simple and robust solution to the goals of increasing creativity and increasing physical activity.”
Sometimes there's nothing like a good stretch to relax the mind and body after an aerobic workout. Take five or 10 minutes after aerobic exercise and treat yourself and stretch. If you tend to have tight muscles all the time and stretching at the end doesn't quite do it for you, then try warming up for five minutes to get the muscles filled with blood, stop and stretch, and then continue with your workout. You might really like the feeling.
Laura Williams holds a master's degree in exercise and sport science and enjoys breaking up her day by running her dogs, hitting the gym, and watching TV. Having been in charge of her own finances since the early age of 12, she knows how to save and when to spend, and she loves sharing these tips with others. Laura ditched her career as a fitness center manager for the relative freedom of home-based writing and editing work. She stays busy by working on her own website, GirlsGoneSporty, a website designed to help the sporty woman live the sporty life.
Stay hydrated. Drinking enough water is an important part of a walking workout. Remember that you lose water through sweat even in cooler weather and that you don't start to feel thirsty until you’re already starting to become dehydrated. Drink about two cups of water before you start and another cup about every 15 minutes. Don't wait until you get thirsty.
Aerobic exercise (also known as cardio) is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process.[1] "Aerobic" means "relating to, involving, or requiring free oxygen",[2] and refers to the use of oxygen to adequately meet energy demands during exercise via aerobic metabolism.[3] Generally, light-to-moderate intensity activities that are sufficiently supported by aerobic metabolism can be performed for extended periods of time.[1] What is generally called aerobic exercise might be better termed "solely aerobic", because it is designed to be low-intensity enough so that all carbohydrates are aerobically turned into energy.

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Here’s what’s happening in your body when you’re running and walking: “Muscle action that propels you from point A to B requires the utilization of a thing called ATP,” explains Janet Hamilton, an exercise physiologist and running coach with RunningStrong. “Your body stores only a limited amount of ATP (enough for only a few seconds of activity), so it needs to replenish that supply, and it does so by metabolizing your stored fuels (glycogen and fat). The process of making useable energy (ATP) from stored fuel (glycogen and fat) is dependent on how much you need and how quickly you need it.” So the more intense the activity, the greater the demand for fuel—and since walking is less intense and demanding than running, it doesn’t demand that ATP be produced at the same rate.
ResetCalories Burned This is an estimate of the calories (kilocalories) you burn doing a particular activity.-write_result();Is the calculator accurate? The calculator uses your basal metabolic rate (how much energy your body burns at rest) and the MET value (see below) for an activity to calculate calories burned. It does not take into account environmental factors, such as running into the wind or up hills, or a person's body composition, i.e. the amount of muscle versus fat (muscle burns more calories than fat).What about exercise intensity?The intensity at which you perform the activity will also affect how many calories you burn, however, this is factored in only for activities such as cycling or running where the pace can be easily measured.How many calories to lose a kg of weight?To lose 1 kg of weight, you need an energy deficit of 7500 kcals - assuming that your weight is stable and not increasing. That's equivalent to 31,380 kJ.The deficit can come from reduced food intake, increased activity or both.Background information1 kilocalorie (kcal) = 1 Calorie = 4.184 kilojoules (kJ)METSA MET is a concept used to compare the energy cost of different physical activities. One MET is equivalent to a metabolic rate consuming 1 kilocalorie per kg of bodyweight per hour, and is equivalent to your resting metabolic rate that is the energy your body uses to stay functioning at rest. An activity of 8 METs, such as singles tennis, would use 8 times as much energy as you do at rest. Last Reviewed: 17 July 2015References Ainsworth BE, Haskell WL, Whitt MC et al. Compendium of physical activities: an update of activity codes and MET intensities. Med Sci Sports Exerc 2000; 32(9): S498-S516 (suppl) You may also likeThis web site is intended for Australian residents and is not a substitute for independent professional advice. Information and interactions contained in this Web site are for information purposes only and are not intended to be used to diagnose, treat, cure or prevent any disease. Further, the accuracy, currency and completeness of the information available on this Web site cannot be guaranteed. Tonic Digital Media Pty Ltd, its affiliates and their respective servants and agents do not accept any liability for any injury, loss or damage incurred by use of or reliance on the information made available via or through myDr whether arising from negligence or otherwise. See Privacy Policy and Disclaimer.2001-2019 myDr.com.au © | All Rights Reserved About UsContact UsDisclaimerPrivacy PolicyAdvertising PolicySitemap
A pound of fat equals 3,500 calories. To lose one pound a week, you will need to burn about 500 more calories per day than you eat. You can do this by increasing your calorie-burning activity or by eating fewer calories—or both. It is easier to achieve it with combining increased activity and eating less. Exercising enough each day to burn 300 to 400 calories is a good goal for the exercise portion of your weight loss plan.
Men and women who walk briskly for more than 30 minutes a day were found to have lower BMIs and smaller waists than everyone else involved in the study. 'Given the obesity epidemic, and the fact that a large proportion of people in the UK are inactive, recommending that people walk briskly more often is a cheap and easy policy option,’ said Dr Grace Lordon, who lead the research.

Vary your walking workout to keep it interesting and you will also burn more calories. Incorporate a couple of inclines into your walking route. If you exercise on a treadmill, set it at a slope for part of the time. Walking more extreme inclines makes your workout more like hiking, which burns twice the amount of calories than walking on a flat route.
This is a good aerobic workout that also boosts upper body strength — and helps you let off steam. Boxing classes are widely available in many gyms. Some classes involve sparring with a partner — you take it in turns to hold a pad or pads while the other person punches them while wearing boxing mitts. Others involve no mitts or pads, just air punching and other moves that simulate boxing training. You can also use a punching bag either at the gym or in your own home.

The third thing I noticed, was how walking reaffirmed my love for where I loved. When you wander daily around your locale, you start to look at it properly; when you do that, you notice how devastatingly beautiful it is. How weird, how sweet, how contrary, how chic. I saw hidden architectural loveliness and hilarious graffiti; outrageously stylish tiling on the exterior of ancient pubs, unutterably picturesque, Dickensian cut-throughs and alleyways. I saw more of the sky, more often, than I’d ever seen before.
Walking is a great way to improve or maintain your overall health. Just 30 minutes every day can increase cardiovascular fitness, strengthen bones, reduce excess body fat, and boost muscle power and endurance. It can also reduce your risk of developing conditions such as heart disease, type 2 diabetes, osteoporosis and some cancers. Unlike some other forms of exercise, walking is free and doesn’t require any special equipment or training.

OK, so maybe you won’t have the ability to see through walls but you can protect your vision as you age by taking a daily walk, according to a study published in the Journal of Neuroscience. Researchers found that people who did regular aerobic activity had healthier eyeballs and were less likely to suffer from problems like retinal degeneration and age-related vision loss. So even if you aren’t Superman, you’ll still have super sight. Find out what your walking style says about your personality.
Downstream from the heart are your muscles, which get more efficient at consuming oxygen when you do regular aerobic exercise (remember, "consuming" oxygen means that the muscles are taking the oxygen out of the blood). This happens because of an increase in the activity and number of enzymes that transport oxygen out of the bloodstream and into the muscle. Imagine 100 oxygen molecules circulating past a muscle. You're twice as fit if the muscle can consume all 100 molecules than if it can only consume 50. Another way of saying it is that you're twice as fit as someone if your VO2 max is 60ml/kg/min. and theirs is 30ml/kg/min. In terms of performance in this scenario, you'll have more endurance because your muscles won't run out of oxygen as quickly.
In light of the benefits associated with HIIT, Dr. Nose created a regimen of fast walking and gentle strolling, to see if this kind of program might provide greater fitness benefits than walking at a steady pace. The program consisted of repeated intervals of three minutes of fast walking, aiming for an exertion level of about six or seven on a scale of one to 10, followed by three minutes of slow strolling. The results turned out to be very promising. As reported by the "New York Times":13
Plus, it can be a better option for those with injuries or pain. “Adding an incline is a great way to increase the challenge for your cardiovascular system and get the same kind of benefits that you can get from jogging or running without the same amount of wear and tear on your knees,” says Tyler Spraul, a Certified Strength and Conditioning Specialist and the Head Trainer at Exercise.com.
To estimate the amount of energy—remember, energy equals calories—the body uses during physical activity (versus when you’re at rest), scientists use a unit that measures the metabolic equivalent for task (MET). One MET is what your body burns while lounging on the couch watching Netflix. Walking, a "moderate" exercise, uses 3 to 6 METs; running, which is typically classified as "vigorous," uses 6 METs or more.

1. It counteracts the effects of weight-promoting genes. Harvard researchers looked at 32 obesity-promoting genes in over 12,000 people to determine how much these genes actually contribute to body weight. They then discovered that, among the study participants who walked briskly for about an hour a day, the effects of those genes were cut in half.
Your bones tend to become weaker as you age. But the good news is you can strengthen your bones by walking regularly. This low-impact exercise prevents loss of bone density, thereby reducing the risk of osteoporosis, fracture, and injury. Since bones determine our framework, stronger and healthier bones help to improve posture, stamina, and balance (9). Walking can also prevent arthritis and reduce the accompanying pain.
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Use the 1-to-10 scale of perceived rate of exertion to measure endurance. Think of 1 as watching TV; 10 is gasping for air (you can't go any further). Daily walks, for example, are 5 or even 6-6.5 sometimes. Twice a week, crank it up to 7, 8, or 9 on a steep hill for a few minutes. Now you're burning serious calories and building real aerobic fitness through interval training. 

You may want to consider keeping a simple log of your walking sessions. If you have a pedometer, a tool that calculates your steps and distance, you can write down how many steps you’ve taken that day. Did you walk on a treadmill? Write down your time, distance, and pace in a notebook or an Excel spreadsheet. Looking back on all your steps is a great way to stay motivated.
Your local gym will provide a wide variety of aerobic options, such as treadmills, cross trainers, exercise bikes, stairmasters, rowing and ski machines so that you can just switch on and get started with your workout. It can be a good idea to diversify between different machines and different speeds/levels of resistance as your body can get used to a certain routine and after a number of sessions the same routine will not work your heart and lungs as much as it once did.
Imagine that you're exercising. You're working up a sweat, you're breathing hard, your heart is thumping, blood is coursing through your vessels to deliver oxygen to the muscles to keep you moving, and you sustain the activity for more than just a few minutes. That's aerobic exercise (also known as "cardio" in gym lingo), which is any activity that you can sustain for more than just a few minutes while your heart, lungs, and muscles work overtime. In this article, I'll discuss the mechanisms of aerobic exercise: oxygen transport and consumption, the role of the heart and the muscles, the proven benefits of aerobic exercise, how much you need to do to reap the benefits, and more.
Taking a 30-minute walk a day is kind of like that proverbial apple: There's a good chance it'll keep the doctor away. From helping you lose weight and de-stress to lowering your blood pressure and reducing your risk of many chronic diseases—going for regular walks is one of the best and easiest things you can do for your health, says Melina B. Jampolis, MD, author of The Doctor on Demand Diet. "Walking is the number one exercise I recommend to most of my patients because it is very easy to do, requires nothing but a pair of tennis shoes, and has tremendous mental and physical benefits," she says. Here's what you can expect when you start walking for just 30 minutes every day, most days of the week.
Walking doesn't burn calories as quickly as a number of other aerobic exercises, including jogging, swimming or riding a bicycle. Walking, however, is a low-impact exercise that is ideal for a wide range of people, including those who contend with joint pain and aren't physically able to perform more up-tempo exercises. If you choose to use walking as your main source of aerobic exercise, set your weekly schedule to allow for a minimum of 2.5 hours of walking.

Crockett does make one caveat: “One common mistake people make is setting the machine to a pace that requires you to hold on,” he says. “When adjusting the incline or speed, make sure it is set at a pace that you can safely walk or run on without hanging on for dear life. This takes away from the muscle engagement and energy required to actually walk or run at the level you set it to.”
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All that oxygen being pumped by the blood is important. You may be familiar with the term "oxygen consumption." In science, it's labeled VO2, or volume of oxygen consumed. It's the amount of oxygen the muscles extract, or consume from the blood, and it's expressed as ml/kg/minute (milliliters per kilogram of body weight). Muscles are like engines that run on fuel (just like an automobile that runs on fuel); only our muscles use fat and carbohydrates instead of gasoline. Oxygen is a key player because, once inside the muscle, it's used to burn fat and carbohydrate for fuel to keep our engines running. The more efficient our muscles are at consuming oxygen, the more fuel we can burn, the more fit we are, and the longer we can exercise.
Now see the effects of taking your walking speed up to brisk walking paces of 4 mph or more. You will burn more calories per mile as you increase your speed, but the biggest factor will still be how much you weigh. One benefit of walking faster is that you can walk farther in the same amount of time. If you walk for a set amount of time, that will mean burning more calories during an exercise session.
Your heart rate increases in direct correlation with the intensity of the exercise. Heart rate levels can vary significantly from one person to another based on fitness level, genetics, environment, and exercise tolerance. If you wish to train based on heart rate, contact your health care provider to determine what the appropriate range is for you. Some medications, most often blood pressure drugs, control heart rate, making it impossible to determine exercise intensity in this way. Ask your physician to determine if you are on any of these medications.
When running isn't in the cards, walking with added weight might be your next best bet for an effective workout. Research shows that walking on the treadmill while wearing a weighted vest can increase the metabolic costs and relative exercise intensity.The effect of weighted vest walking on metabolic responses and ground reaction forces. Puthoff ML, Darter BJ, Nielsen DH. Medicine and Science in Sports and Exercise, 2006, Jun.;38(4):0195-9131. Similarly, increasing the incline on the treadmill makes for a more effective walking workout. A study showed that walking at a slow speed (1.7 mph) on a treadmill at a six-degree incline can be an effective weight management strategy for obese individuals, and help reduce risk of injury to lower extremity joints.Energetics and biomechanics of inclined treadmill walking in obese adults. Ehlen KA, Reiser RF, Browning RC. Medicine and Science in Sports and Exercise, 2011, Oct.;43(7):1530-0315. And picking up the pace slightly almost always helps. One study found speed walkers had a decreased risk of mortality over their slower counterparts.The relationship of walking intensity to total and cause-specific mortality. Results from the National Walkers' Health Study. Williams PT, Thompson PD. PloS one, 2013, Nov.;8(11):1932-6203.
Bone density may not be one of the most exciting health benefits of walking, but it’s an important one. People with stronger bones avoid osteoporosis and all the problems that come with it like fractures, disability, and spine shrinkage (seriously, you can get shorter). And the best way to get strong, healthy bones is by doing weight-bearing exercises like running, dancing and, yes, walking, according to a large study done by Oxford. But when it comes to bones, it’s definitely use it or lose it: To keep your bones strong you have to keep exercising. The researchers found that adults who walked regularly had better bone density throughout their lives than their inactive friends. Find out which common walking mistake causes 11,000 injuries every year.
Aerobic exercises are typically moderate-intensity exercises involving larger muscle groups that are performed over extended periods to improve cardiovascular function. Examples of aerobic exercise include walking, cycling, and pool exercises. Regardless of what type of exercise is used in the aerobic exercise program, maintaining an adequate aerobic dose of 40% to 60% of maximal aerobic capacity (maximum heart rate or Vo2max) is necessary (see Table 47.1). Aerobic exercise has been recommended as part of the management of patients with a variety of rheumatologic disorders in a number of published treatment guidelines.2,3,32,33 Aerobic exercise programs have been shown to reduce pain, improve function and quality of life, increase aerobic capacity and endurance, and improve mental health.2,33-35
Whether you’re just having a down day or a down life, taking a walk can instantly lift your mood—especially when you go outdoors. Not only can walking make you less depressed, but according to a study published in the Archives of Internal Medicine, depression sufferers who took a daily walk showed just as much improvement in their symptoms as people on medication. In fact, 60 to 70 percent of the subjects could no longer even be classified as depressed. And a follow-up study foun5d that the mood boost from the walk lasted longer than that of the medication. Find out exactly how long you should walk if you want a mood boost.
Only one day – as is not entirely unusual – my bus simply did not come. I waited and I waited, and I waited some more, my blood pressure rising, spitting and swearing and huffing and puffing over the unimaginable injustice of a BUS THAT WOULD NOT COME, alongside gathering hoards of similarly frustrated non-passengers… Then, after 20 minutes, spurred onwards by a desire to demonstrate I simply would not stand for such abysmal service! - I walked.
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