An excess of subcutaneous fat in proportion to lean body mass. Excess fat accumulation is associated with increase in the size (hypertrophy) as well as the number (hyperplasia) of adipose tissue cells. Obesity is variously defined in terms of absolute weight, weight:height ratio, distribution of subcutaneous fat, and societal and esthetic norms. Measures of weight in proportion to height include relative weight (RW, body weight divided by median desirable weight for a person of the same height and medium frame according to actuarial tables), body mass index (BMI, kg/m2) and ponderal index (kg/m3). These do not differentiate between excess adiposity and increased lean body mass. In contrast, subscapular and triceps skinfold measurements and determination of the waist:hip ratio help define the regional deposition of fat and differentiate the more medically significant central obesity from peripheral obesity in adults. No single cause can explain all cases of obesity. Ultimately it results from an imbalance between energy intake and energy expenditure. Although faulty eating habits related to failure of normal satiety feedback mechanisms may be responsible for some cases, many obese people neither consume more calories nor eat different proportions of foodstuffs than nonobese persons. Contrary to popular belief, obesity is not caused by disorders of pituitary, thyroid, or adrenal gland metabolism. However, it is often associated with hyperinsulinism and relative insulin resistance. Studies of obese twins strongly suggest the presence of genetic influences on resting metabolic rate, feeding behavior, changes in energy expenditures in response to overfeeding, lipoprotein lipase activity, and basal rate of lipolysis. Environmental factors associated with obesity include socioeconomic status, race, region of residence, season, urban living, and being part of a smaller family. The prevalence of obesity is greater when weight is measured during winter rather than summer. Obesity is much more common in the southeastern U.S., although the northeastern and midwestern states also have high rates, a phenomenon independent of race, population density, and season.
Aerobic exercises included treadmill walking, stationary cyclingand stair climbing. Resistance training involved upper-body and lower-body exerciseson weight-lifting machines. All groups also did flexibility and balance exercises.
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With the onset of the Industrial Revolution it was realized that the military and economic might of nations were dependent on both the body size and strength of their soldiers and workers. Increasing the average body mass index from what is now considered underweight to what is now the normal range played a significant role in the development of industrialized societies. Height and weight thus both increased through the 19th century in the developed world. During the 20th century, as populations reached their genetic potential for height, weight began increasing much more than height, resulting in obesity. In the 1950s increasing wealth in the developed world decreased child mortality, but as body weight increased heart and kidney disease became more common. During this time period, insurance companies realized the connection between weight and life expectancy and increased premiums for the obese.
If you are overweight or obese and would like to become pregnant, talk to your health care provider about losing weight first. Reaching a normal weight before becoming pregnant may reduce your chances of developing weight-related problems. Pregnant women who are overweight or obese should speak with their health care provider about limiting weight gain and being physically active during pregnancy.
Several tools have been developed to aid physicians in the multiple etiologies of unintentional weight loss. These include the mnemonic Meals on Wheels (medication effects; emotional problems, especially depression; anorexia nervosa; alcoholism; late-life paranoia; swallowing disorders; oral factors, such as poorly fitting dentures and caries; no money; wandering and other dementia-related behaviors; hyperthyroidism, hypothyroidism, hyperparathyroidism, and hypoadrenalism; enteric problems; eating problems, such as inability to feed oneself; low-salt and low-cholesterol diet; stones; social problems, such as isolation and inability to obtain preferred foods).20 Another tool is the 9 D’s of weight loss in the elderly (dementia, dentition, depression, diarrhea, disease [acute and chronic], drugs, dysfunction [functional disability], dysgeusia, dysphagia).21
At last, it’s time to toss that scale that’s collecting dust under your bathroom vanity. “At advanced ages, you cannot afford to lose muscle, organ tissue, or bone mass,” says Huizenga, “which means focusing on the number on the scale is especially inappropriate.” Instead, invest in a body fat measurement tool (such as calipers or an electrical impedance device) or simply just measure your waist size. The general rule of thumb is that your waist size should be no more than half your height. So, a woman who’s 5′ 4″ (or 64 inches) should have a waist size no larger than 32 inches; a man who’s 5′ 9″ (or 69 inches) should have a waist no larger than 34.5 inches.
Sato F, Tamura Y, Watada H, Kumashiro N, Igarashi Y, Uchino H, Maehara T, Kyogoku S, Sunayama S, Sato H, Hirose T, Tanaka Y, Kawamori R. Effects of diet-induced moderate weight reduction on intrahepatic and intramyocellular triglycerides and glucose metabolism in obese subjects. J Clin Endocrinol Metab. 2007;92:3326–3329. [PubMed]
Jump up ^ Johnston, Bradley C.; Kanters, Steve; Bandayrel, Kristofer; Wu, Ping; Naji, Faysal; Siemieniuk, Reed A.; Ball, Geoff D. C.; Busse, Jason W.; Thorlund, Kristian; Guyatt, Gordon; Jansen, Jeroen P.; Mills, Edward J. (3 September 2014). “Comparison of Weight Loss Among Named Diet Programs in Overweight and Obese Adults”. JAMA. 312 (9): 923–33. doi:10.1001/jama.2014.10397. PMID 25182101.
Elderly patients with some diseases seem to survive longer when they are affected by excess weight or obesity. The debate is ongoing in the scientific world about whether this is a real phenomenon and if so, what could explain it. Some suggest that the statistics are such only due to the fact that as adults age, those “susceptible” to the harmful effects of obesity may have already succumbed to diseases. Therefore, the elderly population affected by obesity is represented by people that are “resistant” to the negative effects of obesity. To better understand this, let’s make an analogy with smoking and lung cancer.
Your caloric needs decrease as you age; therefore, for example, a woman over age 50 should cut back to between 1,600 and 2,000 calories a day, depending on her level of physical activity, according to the National Institute on Aging. If a lack of mobility is a hindrance to preparing healthy foods at home, don’t resort to calling for takeout. Instead, look into a grocery delivery service that allows you to place an order on the Internet and have it delivered to your doorstep. Eating enough food to keep up with the calories needed for movement is important, too — according to WebMD, seniors often grapple with preparing fresh, healthy foods at home due to difficulty chewing due to tooth pain or dentures, problems with indigestion and a declining sense of taste. Emotional problems such as depression or loneliness can play a role in both eating too little and eating too many of the wrong comfort foods. Visit a medical professional to determine a healthy diet for your physical and mental needs.
A healthy diet for preventing diabetes includes reducing or avoiding foods that have a high Glycemic Index (GI). The GI is how quickly a carbohydrate in a food is digested and converted into sugar in your blood. Foods with the highest GI include table sugar, flour, rice, and everything made from these nutrients, such as processed bread, pasta, and pastry.
A total of 2,309 prospective articles were initially identified. After removing duplicates and irrelevant studies, 90 articles were retained. Of these 90 articles, 83 were excluded for not meeting the inclusion criteria outlined previously. Three articles were manually added. The selection of articles was agreed upon by two authors (DLW and DTV). The final analysis yielded a total of ten articles meeting all established criteria (Figure 1). These articles are listed in Table 1. They are not ordered chronologically, but instead grouped by similarities between study design and intervention, for ease of discussion. Only one small pilot study was found under the category feasibility/maintenance of long-term weight loss in older adults that satisfied our study selection criteria. This study is not included in Table 1, but is discussed under the subheading 3.2 Feasibility and Long-term Maintenance of Weight Loss, in the Discussion of the Systematic Review section.
Perhaps more worrisome was the level of mobility problems they found. In 2010, a greater proportion than in 1997 told interviewers that they had difficulty with at least one of nine physical functions examined. Specifically, about 40 percent of the respondents said that a health problem made it difficult for them to kneel or stoop; stand for two hours; walk one-quarter mile; climb 10 steps without resting; sit for two hours; lift and carry 10 pounds; reach over the head; push or pull a large object; or grasp small objects.
Barrington WE, Schenk JM, Etzioni R, et al. Difference in association of obesity with prostate cancer risk between US African American and non-Hispanic white men in the Selenium and Vitamin E Cancer Prevention Trial (SELECT). JAMA Oncology 2015; 1(3):342-349.
A common form of short stature, achondroplasia (dwarfism) is a genetic condition causing a disorder of bone growth. Complications of achondroplasia that need monitoring include (this is not all inclusive) stenosis and compression of the spinal cord, a large opening under the skull, lordosis, kyphosis, spinal stenosis, hydrocephalus, middle ear infections, obesity, and dental crowning. Achondroplasia is caused by mutations of the FGFR3 gene.
While there are other measures of obesity, including abdominal fat and waist circumference, researchers generally define it according to body mass index, or BMI. The BMI formula divides an individual’s weight by the square of height, then multiplies the result by 703. The math is not without controversy: Some health experts charge that for people with large muscle mass, the calculations may unfairly skew them into overweight or obese categories.
Feeling full on less. The concept of energy density can help you satisfy your hunger with fewer calories. All foods have a certain number of calories within a given amount (volume). Some foods — such as desserts, candies, fats and processed foods — are high in energy density. This means that a small volume of that food has a large number of calories. In contrast, other foods, such as fruits and vegetables, have lower energy density. These foods provide a larger portion size with a fewer number of calories. By eating larger portions of foods that have fewer calories, you reduce hunger pangs, take in fewer calories and feel better about your meal, which contributes to how satisfied you feel overall.
However, not all was bleak for the boomers: They are less likely to smoke cigarettes than their parents, and were less likely to have emphysema or a heart attack, the study — which was published Feb. 4 in JAMA Internal Medicine — found.
Mind-body therapies — such as acupuncture, mindfulness meditation and yoga — may complement other obesity treatments. However, these therapies generally haven’t been well-studied in the treatment of weight loss. Talk to your doctor if you’re interested in adding a mind-body therapy to your treatment.
3Bhaskaran K, Douglas I, Forbes H, dos-Santos-Silva I, Leon DA, Smeeth L. Body-mass index and risk of 22 specific cancers: a population-based cohort study of 5•24 million UK adults. Lancet. 2014 Aug 30;384(9945):755-65. doi: 10.1016/S0140-6736(14)60892-8. Epub 2014 Aug 13.
For example, today’s regular staff may have trouble helping and lifting obese residents, and often do not know how to use the specialized equipment. Overweight patients confined to their beds also require staff to reposition the resident’s body so that bed sores are not developed. Unfortunately it also takes more staff members to aid an obese patient than a regular patient, and this additional care costs money and makes little business sense for communities.
For example, fat “cushions” the release of various flavors on the tongue, unveiling them gradually and allowing them to linger. When fat is removed, flavors tend to immediately inundate the tongue and then quickly flee, which we register as a much less satisfying experience. Fona’s experts can reproduce the “temporal profile” of the flavors in fattier foods by adding edible compounds derived from plants that slow the release of flavor molecules; by replacing the flavors with similarly flavored compounds that come on and leave more slowly; or by enlisting “phantom aromas” that create the sensation of certain tastes even when those tastes are not present on the tongue. (For example, the smell of vanilla can essentially mask reductions in sugar of up to 25 percent.) One triumph of this sort of engineering is the modern protein drink, a staple of many successful weight-loss programs and a favorite of those trying to build muscle. “Seven years ago they were unpalatable,” Sobel said. “Today we can mask the astringent flavors and eggy aromas by adding natural ingredients.”
Overweight and obesity are known to increase blood pressure. High blood pressure is the leading cause of strokes. Excess weight also increases your chances of developing other problems linked to strokes, including high cholesterol, high blood sugar, and heart disease.
“We’re far from out of the woods when it comes to obesity. But we have many reasons to be optimistic thanks to parents, educators, business owners, health officials and other local leaders,” he added.
Cancers of the colon, breast (after menopause), endometrium (the lining of the uterus), kidney, and esophagus are linked to obesity. Some studies have also reported links between obesity and cancers of the gallbladder, ovaries, and pancreas.
According to Jesse Slome, executive director of the American Association for Long-Term Care Insurance, a baby boomer is somebody born between 1946 and about 1965. “Boomers make up almost one in five U.S. citizens and have a significant impact on the economy,” Slome explains. “Their impact of health care and long-term care costs could be more than this nation can bear.”