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Frailty can have various symptoms including muscle weakness (reduced grip strength), slower walking speed, exhaustion, unintentional weight loss, and frequent falls. [3] [4] Older people with certain medical conditions such as diabetes, heart disease and dementia, are also more likely to have frailty.
Indeed, unintentional weight loss is an extremely significant predictor of mortality. [33] Terminally ill individuals often undergo weight loss before death, and classifying those individuals as lean greatly inflates the mortality rate in the normal and underweight categories of BMI, while lowering the risk in the higher BMI categories.
Intentional weight loss is the loss of total body mass as a result of efforts to improve fitness and health, or to change appearance through slimming. Weight loss is the main treatment for obesity, [1] [2] [3] and there is substantial evidence this can prevent progression from prediabetes to type 2 diabetes with a 7–10% weight loss and manage cardiometabolic health for diabetic people with a ...
The study analyzed the weight of roughly 20,000 older adults 65 years of age or older in both Australia (around 17,000 adults) and the United States (more than 2,000).
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Unwanted weight loss of more than 5% within 6 months. [2] [19] For people with a BMI of less than 20kg/m 2, weight loss of more than 2%. [2] [19] [27] For people with sarcopenia, weight loss of more than 2%. [2] [19] [27] New ways to score and stage cachexia are being explored, particularly in people with advanced cancer. [19]
Using the body mass index as a measure of weight-related health, with data from 2014, age-standardised global prevalence of underweight in women and men were 9.7% and 8.8%, respectively. These values were lower than what was reported for 1975 as 14.6% and 13.8%, respectively, indicating a worldwide reduction in the extent of undernutrition.
Body Mass Index (BMI) is the quotient between weight and height squared (kg/m 2). An individual with a BMI < 18.5 is regarded as a case of wasting. Percent of body weight lost (At Tufts, an unintentional loss of 6% or more in 6 months is regarded as wasting)