Internal consistency and test-retest reliabilities were acceptable to high in all scales, and small to high statistically significant correlations were found with all convergent measures, with the exception of BMI. Results: Confirmatory factor analysis showed that a modified hierarchical model with two items moved from the Sleep/Rest Fatigue domain to the General Fatigue domain and a second-order latent factor best fitted the data. A randomized subsample of 48 patients re-completed the PedsQL MFS after 3 days. Methods: 200 inpatients (81% females) with severe obesity (BMI в‰Ґ 35 kg/m 2) completed the PedsQL MFS (General Fatigue, Sleep/Rest Fatigue and Cognitive Fatigue domains), the Fatigue Severity Scale, and the Center for Epidemiologic Studies Depression Scale immediately after admission to a 3-week residential body weight reduction program. So there is some dissention in the ranks.Objective: This study was aimed to examine the feasibility, validity, and reliability of the Italian Pediatric Quality of Life Inventory Multidimensional Fatigue Scale (PedsQLв„ў MFS) for adult inpatients with severe obesity. Other scientists, however, have suggested that although some people may appear to be overweight but healthy, the extra weight still puts them at higher risk of certain diseases as they get older. National Health and Nutrition Examination SurveyВ and analysed the link between BMI and a range of other normal health markers (like blood pressure, blood sugar, and cholesterol) and found that BMI incorrectly pegged people's health at both ends of the weight scale. To determine this, the researchers examined data from the U.S. Another 21 million people were classed as 'normal' in terms of BMI but were later determined to be unhealthy based again on those other cardiometabolic measures. Researchers found that 54 million Americans had been classed as overweight or obese, but with further investigation, they found that other cardiometabolic measures (blood pressure, blood sugar, cholesterol, etc.) showed they were actually perfectly healthy. But research published in 2016 suggested that this was incorrect for 75 million Americans. Does BMI Correlate to Health?ДЄ person whose BMI says they are overweight, or even obese, is generally considered unhealthy, while people with normal BMI are generally categorized as healthy. South Asians, in particular, have especially high levels of abdominal obesity, which can throw off the BMI measurement as well. When compared to white Europeans of the same BMI, Asians appear to have a four percent higher total body fat. ItвЂ™s also important to mention that the BMI calculation is based primarily on Caucasian body types and may not be appropriateВ for people of other ethnicities. In this case, an elderly personвЂ™s BMI could be within a normal range while they might actually be overweight. BMI is also not reliable to use on elderly adults, who generally have lost some amount of muscle and bone mass.

This isnвЂ™t the only place where BMI falls apart either. But as I said earlier, a glob of muscle weighs about 18 percent more than the same size glob of fat, so this is clearly not an accurate statement. So, according to the BMI, the sprinter is more overweight than the sedentary person. They would have a BMI of 28.ДЄ glob of muscle weighs about 18 percent more than the same size glob of fat. Now, imagine a sprinter who is also six feet tall but weighs 211 lbs. How does this kooky error happen? Well, imagine a sedentary person who is six feet tall and weighs 203 pounds. Also basketball player Lebron James and NHL right winger, Phil Kessel, both have a BMI of 27.5 and as we will learn later, a BMI between 25-29.9 is considered overweight. Then there is star NFL quarterback Tom Brady whoвЂ™s BMI categorizes him as obese.

Some good examples of this misinterpretation, according to an analysis of BMIвЂ™s Blind Spots, are former Olympians Usain Bolt and Michael Phelps, who just narrowly miss the 'overweight' camp. Where Does BMI Go Wrong?ДЄ common example that people use when talking smack about BMI is that it doesn't distinguish between body fat and muscle mass, which is important because a hunk of muscle weighs more than the same size hunk of fat. Much of the time, and often when it really counts, the BMI measurement may actually overestimate or even underestimate a personвЂ™s body fat. Even though it is often used as one, it is not a true diagnostic of body fatness or of an individualвЂ™s overall health.ДЄs most of us fitness-focused folks have likely heard, BMI is far from a perfect measurement. Body Mass Index (BMI) is a mathematical formula that divides a person's weight by the square of their height to arrive at a number that falls into one of these bodyweight categories:Д«eyond assigning one of these categories, a high BMI can be also an indicator of high body fat and therefore can be used to screen for certain weight levels that could lead to health problems.

Bmi validity and reliability