Doctor insights on:
How To Calculate Fluid Requirements Based On Body Weight Method
Body fat percentage: This article has directions for 2 methods to obtain a rough estimate: http://www.bodybuilding.com/fun/becker11.htm ...Read more
Underwater weighing: Based on physics. Without going into a dissertation on newtonian physics, hydrodensitometry , which is what this is called, is the difference between your weight in and out of the water and is used to calculate your body density. Then your body fat percentage is estimated--note estimated-- based on the principle that fat tissue is less dense than muscle and bone. ...Read more
See below: hydrostatic weighing, DEXA scans are incredibly accurate at measuring body composition. But whereas hydrostatic weighing involves getting dunked under the water, a DEXA scan simply involves lying on a table for a few quick, dry and painless minute. Calipers are not as accurate as above...use the BMI scale also ...Read more
What percentage of adult men's weight is body water? And can you use body water percentage to measure hydration?
60%: In a male, 60% of body weight is water. In women, it is 50%. You typically cannot use body water percentage to measure hydration. The best way to hydrate is to thirst: that is the most powerful stimulus for drinking water. Also, if your urine is dark, that usually means you are dehydrated as well. ...Read more
How can BMI decrease without any effect on "body composition, abdominal fat"? Doesn't the weight need to come from somewhere?
BMI is just a ratio: Bmi is simply a ratio of height to weight. The scenario you mentioned could simply come from a decrease in skeletal muscle mass without any decrease in body fat mass. Monitoring progression of body fat percentage is thus a much better indicator of your health than monitoring bmi. To do this you could track your progress on a professional body composition machine like the inbody 230. ...Read more
BMI and body fat: There are two ways. The more traditional way is to calculate your body mass index (check at wellesleymd.Com). Ideal bmi is 22-23, since your height is stable, if you get your weight there, that'll be ideal. What i like more is body fat which is more consistent with being healthy. Get your body fat checked, for male ideal is between 14-18%, female 18-26%. So lose enough fat to get your fat in range. ...Read more
No: You really have no control over where on your body you will lose weight. Hitting targeted areas, such as the abs with crunches, helps build muscle and lean out, but it doesn't result in weight loss just in the mid-section. To target specific areas of fat like the love handles requires something like liposuction. Some seem to lose more in certain areas quicker, but this is more genetics. ...Read more
Volume displacement: Thanks to archimedes, the traditional method is performed by making a vast of the breast and then filling it with water to estimate the breast weight, . This is obviously impractical and therefore the weight can be estimated using 3d imaging with photography, ct or mri. ...Read more
BMI: The body mass index is equal to the person's weight divided by the square of their height. Ideal body weight will vary with age, sex, muscle/fat ratio, height and bone density. Bmi is only a rough guide of a person's ideal body weight which is usually a range and not an absolute number. Generally a bmi less than 18 is underweight, 18-25 is ideal, 25-30 is overweight and over 30 is obese. ...Read more
Ask PharmD.: This is a perfect question to have the hospital clinical pharmacist answer you directly. They are trained to know how to calculate calories, osmolarity, osmolality, and multivitamin and mineral supplementation along with the TPN for the person receiving it. They do this day in, day out, and would be happy to give you the exact breakdown requested. There are specific algorithms used. ...Read more
Many methods: There are many methods, with varying accuracy. Bmi is simply wt/ht(2). A simple method for %fat is impedance, and trainers often use them. Gold standard for %fat is underwater weighing, bodpod, or dexa. Rmr requires a metabolic cart which is used in hospitals and research labs. Many of these are relegated to research labs. It is usually not necessary to know all this to be healthy. ...Read more
What is best time of the day to measure weight my weight varies throughout the day how can u know ur exact weight ?
Weight Varies: There is very little reason for a weight to be so accurate that the minute by minute changes must be known. The standard recommendation is to weigh yourself at about the same time each time and to keep track of weight that way. Not to weigh repeatedly and confuse the picture. ...Read more
What is the view on the fitness program 'insanity' by shaun t? On avg, how many calories can one expect to burn on the diff workouts?
Help please? What is the least amount of calories my body can survive on without going into starvation mode?
Do some math: Body mass index is calculated by taking one's weight in kilograms and dividing it by height in meters and then dividing by height again. There are many online calculators available to do the math for you. If you are an adult, a bmi of 25-29 kg per meter squared is overweight and one of > 30 is obese. <18.5 is underweight. For children what is a healthy bmi changes with age. ...Read moreSee 1 more doctor answer
How long does it take your body to break down your body fat from anorexic behaviors? Ex. Eating 50% recommended calories, 15% body fat, male, 180 lb
Planning a diet?: You're actually describing a rigorous weight-loss diet such as athletes undertake to make weight or fitness guys to "get ripped"; it would be an anorexic behavior if it became an obsession or you were likely to hurt yourself. You're at your physical prime and if you can adopt a fitness-focused lifestyle instead of episodic diet, it's be great. Your physician can help. ...Read moreSee 1 more doctor answer
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