Aerobic exercise (also known as cardio) is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. "Aerobic" means "relating to, involving, or requiring free oxygen", and refers to the use of oxygen to adequately meet energy demands during exercise via aerobic metabolism. Generally, light-to-moderate intensity activities that are sufficiently supported by aerobic metabolism can be performed for extended periods of time. 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.
Walking also offers plenty of health benefits, including lowering the risk of high blood pressure, heart disease and diabetes; reducing the risk of developing dementia and cancer and even reducing fibromyalgia pain. Plus, walking may be even more beneficial than running. Walkers have a much lower risk of exercise-related injuries than runners, whose legs absorb about 100 tons of impact force in just one mile. So, if you’re just starting your fitness journey, know that fitness walking is a seriously good place to begin.
The thinking has also changed somewhat on whether there’s a threshold minimum workout duration required to reap cardiovascular health benefits from aerobic activity. HHS’s new physical activity guidelines eliminated the long-standing recommendation that exercise had to last at least 10 minutes to count toward your daily total. (4) The new guidelines emphasize that small bouts of activity throughout the day can add up to big health benefits.
Triglycerides are a common form of fat that we digest. Triglycerides are the main ingredient in animal fats and vegetable oils. Elevated levels of triglycerides are a risk factor for heart disease, heart attack, stroke, fatty liver disease, and pancreatitis. Elevated levels of triglycerides are also associated with diseases like diabetes, kidney disease, and medications (for example, diuretics, birth control pills, and beta blockers). Dietary changes, and medication if necessary can help lower triglyceride blood levels.
I walked along my bus route, assuming that sooner or later, my arrival at another bus stop would coincide with the arrival of my bus. But it didn’t. So I walked some more, eventually making it to work, a mere 20 minutes later than I normally would have, calmer than I might have anticipated, and feeling like I’d accomplished something vaguely mammoth before 10am. I also felt liberated. Who wants to be enslaved to their public transport systems, beholden to the schedules, the whims and capriciousness. Suddenly, I had another option.
Here’s my most important tip for walkers. It’s not the foot strike. It’s not the arm swing. It’s the “belly-button-to-spine” action that will make the walk more effective, protect your back, and get your abs in on the action. I call it a “tummy tuck.” Draw the belly button toward the spine. That deep layer of muscle is key to supporting your back. It stabilizes the middle of the body so that the legs can move with much more power.
Invest in good shoes. Since these are the only expense and equipment you'll need, pay attention to the fit and quality of your shoes. Shoes should fit when you try them on without any areas of pinching or pressure that could cause blisters or calluses. Wear the type of socks you'll wear when walking when you purchase your shoes, and remember that you'll likely need a larger-sized shoe than you normally wear if you plan to wear thick socks. Shoes should have good arch support and a slightly elevated heel with stiff material to support the heel when walking and prevent wobbling. Trekking poles or other accessories may also help, depending upon the climate and terrain where you'll be walking.
Be sure to drink plenty of water before, during, and after walking. Incorporate a warm up, cool down and stretches into your routine. Start your walk at a slow warm up pace, stop and do a few warm up / flexibilty drills. Then walk for the desired length of time. End your walk with the slower cool down pace and stretch well after your walk. Stretching will make you feel great and assist in injury prevention.
Being active has been shown to have a positive effect on the way our brains work, and with the latest figures showing dementia affects one in 14 people over 65 and one in six over 80 it’s worth bearing in mind that regular exercise reduces that risk by up to 40 per cent. What’s more, older people who walk six miles (9.65 kilometres) or more per week can avoid brain shrinkage, preserving the memory for longer.
When the weather outside is frightful, many people turn to treadmills. Admittedly, treadmills are boring. Spice up a complete treadmill workout by using elevation to give the sense of a trail. You don't have to follow the preprogrammed courses. Create your own interval training with hills. Make it a mental game. Life isn't automated and your treadmill workout shouldn't be either. Ascend and descend by varying your elevations and speeds.
Your weight and the distance you walk are the biggest factors in how many calories you burn while walking. A rule of thumb is that about 100 calories per mile are burned for an 180-pound person and 65 calories per mile are burned for a 120-pound person. Your walking speed matters less. Use these charts to learn how many calories you are burning on your walk, depending on your weight and pace for various distances from one mile to the marathon distance of 26.2 miles.
Interval training is more intense than simple aerobic training. It's a very effective way to increase your fitness level (remember stroke volume and mitochondria activity!), but it's tough, and so I recommend holding off until you build up to 20-30 minutes of aerobic exercise. The idea to intervals is to set up work to active-rest ratios (work:active-rest), and as you get more fit, decrease the active-rest interval and increase the work interval. The work interval of the ratio is a speed that is faster than what you usually do, and the active-rest interval is your usual speed. To do it, you start at your usual speed for five to eight minutes, then increase the speed to the work interval for one to three minutes, then slow down to your usual speed for a few minutes to catch your breath (this is the active-rest interval), and then you repeat the cycling for the duration of your workout.