Why is BMI not accurate for elderly?

You can’t tell between fat, muscle or fluid mass so using BMI may not be accurate. For the elderly, muscle mass is much lower in comparison to fat mass, and many have medical conditions that can increase fluid mass as well. … Does not take into account presence of sarcopenia or malnutrition (loss of muscle and function).

What is a healthy BMI for elderly?

In older adults it is often better to have a BMI between 25 and 27, rather than under 25. If you are older than 65, for example, a slightly higher BMI may help protect you from thinning of the bones (osteoporosis).

Why BMI is inaccurate and misleading?

BMI (body mass index), which is based on the height and weight of a person, is an inaccurate measure of body fat content and does not take into account muscle mass, bone density, overall body composition, and racial and sex differences, say researchers from the Perelman School of Medicine, University of Pennsylvania.

What is a good BMI for 70 year old?

Objectives: To examine in an older population all-cause and cause-specific mortality associated with underweight (body mass index (BMI)<18.5), normal weight (BMI 18.5-24.9), overweight (BMI 25.0-29.9), and obesity (BMI> or =30.0).

What is the ideal BMI for a 70 year old woman?

CURRENT World Health Organization (WHO) recommendations advise a body mass index (BMI) range of 18.5–25 kg/m2 for optimal health in adults aged 18+ years (1).

Is BMI accurate for elderly?

You can’t tell between fat, muscle or fluid mass so using BMI may not be accurate. For the elderly, muscle mass is much lower in comparison to fat mass, and many have medical conditions that can increase fluid mass as well.

WHO BMI classification for elderly?

Here is a sneak peak of the five main points of this article: BMI guidelines are different for older adults. Overall health is more important than BMI. Usual body weight is the best way to “assess” weight in the elderly.

What is BMI?CategoryBMINormal18.5 – 24.9Overweight25 – 29.9Obese30+Ещё 1 строка21 мая 2020 г.

Who should not use BMI?

A person is considered underweight if the BMI is less than 18.5. As with most measures of health, BMI is not a perfect test. For example, results can be thrown off by pregnancy or high muscle mass, and it may not be a good measure of health for children or the elderly.

Why do doctors still use BMI?

Body Mass Index Is a Good Gauge of Body Fat

The most basic definition of overweight and obesity is having too much body fat-so much so that it “presents a risk to health.” (1) A reliable way to determine whether a person has too much body fat is to calculate the ratio of their weight to their height squared.

Is BMI accurate if you are muscular?

Crucially, BMI doesn’t distinguish between fat and muscle and studies have found it unreliable.

What is the ideal weight for a 70 year old man?

However, for adults aged 20 years and older, a BMI: below 18.5 is considered underweight. 18.5 to 24.9 is considered a healthy weight.

Ideal weight using body mass index.Height (inches)Ideal weight (pounds)68 (5’8″)125–16369 (5’9″)128–16870 (5’10”)132–17371 (5’11”)136–178Ещё 15 строк

What is a healthy weight for a 70 year old woman?

Normal weight at 118 to 159 pounds (BMI = 18.5-24.9) Overweight at 160 to 191 pounds (BMI = 25-29.9) Obese at 192 pounds or more (BMI = 30+)

How much body fat should a 70 year old woman have?

Women: 20-40 yrs old: Underfat: under 21 percent, Healthy: 21-33 percent, Overweight: 33-39 percent, Obese: Over 39 percent. 41-60 yrs old: Underfat: under 23 percent, Healthy: 23-35 percent, Overweight : 35-40 percent Obese: over 40 percent.

Should you weigh more as you get older?

Now new research has uncovered why that is: lipid turnover in the fat tissue decreases during aging and makes it easier to gain weight, even if we don’t eat more or exercise less than before. Many people struggle to keep their weight in check as they get older.

Does age affect your BMI?

Share on Pinterest BMI incorporates height and weight but not body composition, fitness, age, or sex. For adults ages 20 years and older, BMI incorporates weight and height, but it does not take age or sex into account.

What is my ideal weight for my height and age?

Weight and height guide chartHeightWeight5ft 1″ (61″)100 to 127 lbs.132 to 153 lbs.5ft 2″ (62″)104 to 131 lbs.136 to 158 lbs.5ft 3″ (63″)107 to 135 lbs.141 to 163 lbs.5ft 4″ (64″)110 to 140 lbs.145 to 169 lbs.Ещё 17 строк