Although some people prefer the less-ambiguous term body mass, the term body weight is overwhelmingly used in daily English speech as well as in the contexts of biological and medical sciences to describe the mass In physics, mass commonly refers to any of three properties of matter, which have been shown experimentally to be equivalent: inertial mass, active gravitational mass and passive gravitational mass. In everyday usage, mass is often taken to mean weight, but in scientific use, they refer to different properties of an organism's body. Body weight is measured in kilograms The kilogram is the base unit of mass in the International System of Units (SI, from the French Le Système International d’Unités),[Note 2] which is the modern standard governing the metric system. The kilogram is defined as being equal to the mass of the International Prototype Kilogram (IPK),[Note 3] which is almost exactly equal to the mass throughout the world, although in some countries people more often measure and describe body weight in pounds The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement. A number of different definitions have been used, the most common today being the international avoirdupois pound of exactly 0.45359237 kilograms (e.g. United States The United States of America is a federal constitutional republic comprising fifty states and a federal district. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the and sometimes Canada Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean. It is the world's second largest country by total area and its common border with the United States to the south and northwest is the world's longest) or stones and pounds Imperial units or the imperial system is a system of units, first defined in the British Weights and Measures Act of 1824, later refined and reduced. The system came into official use across the British Empire. By the late 20th century all nations of the former empire had officially adopted the metric system as their main system of measurement (e.g. among people in the Commonwealth of Nations The Commonwealth of Nations, often referred to as the Commonwealth and previously as the British Commonwealth, is an intergovernmental organisation of fifty-four independent member states, all but two of which were formerly part of the British Empire. The member states co-operate within a framework of common values and goals as outlined in the) and thus may not be well acquainted with measurement in kilograms. Most hospitals, even in the United States, now use kilograms for calculations, but use kilograms and pounds together for other purposes. (1 kg is approximately 2.2 lb; 1 stone The stone, a unit of measure that ceased to be legal for trade in United Kingdom in 1985, was defined in British legislation as being a weight or mass [sic] equal to 14 [avoirdupois] pounds. It was also formerly used in several Commonwealth countries (14 lb) is approximately 6.4 kg.)
The term is usually encountered in connection with:
- food Food is any substance, usually composed of carbohydrates, fats, proteins and water, that can be eaten or drunk by an animal, including humans, for nutrition or pleasure. Items considered food may be sourced from plants, animals or other categories such as fungus or fermented products like alcohol. Although many human cultures sought food items and feeding behaviour
- normal and abnormal growth Human development is the process of growing to maturity. In biological terms, this entails growth from a one-celled zygote to an adult human being and development
- the physiological Physiology is the science of the functioning of living systems. It is a subcategory of biology. In physiology, the scientific method is applied to determine how organisms, organ systems, organs, cells and biomolecules carry out the chemical or physical function that they have in a living system. The word physiology is from Greek φύσις, physis, and hormonal A hormone is a chemical released by one or more cells that affects cells in other parts of the organism. Only a small amount of hormone is required to alter cell metabolism. It is essentially a chemical messenger that transports a signal from one cell to another. All multicellular organisms produce hormones; plant hormones are also called control of ingestion and digestion Digestive systems take many forms. Some organisms, including nearly all spiders, simply secrete biotoxins and digestive chemicals into the extracellular environment prior to ingestion of the consequent "soup". In others, once potential nutrients or food is inside the organism, digestion can be conducted to a vesicle or a sac-like
- foraging Foraging theory is a branch of behavioral ecology that studies the foraging behavior of animals in response to the environment in which the animal lives. Foraging theory considers the foraging behavior of animals in reference to the payoff that an animal obtains from different foraging options. Foraging theory predicts that the foraging options for food in animals
- hunger On June 19, 2009, it was reported that the number of malnourished people in the world hit 1 billion people, about a sixth of the world's total population and other motivations Motivation is the activation or energization of goal-oriented behavior. Motivation may be intrinsic or extrinsic. The term is generally used for humans but, theoretically, it can also be used to describe the causes for animal behavior as well. This article refers to human motivation. According to various theories, motivation may be rooted in the to eat
- problems in regulating body weight, often resulting in obesity Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health, leading to reduced life expectancy and/or increased health problems. Body mass index , a measurement which compares weight and height, defines people as overweight (pre-obese) when their BMI is between 25 kg/m2 and 30
- eating disorders An eating disorder is a condition which affects an individuals eating habits, either as a result of their own doing , or as a bodily reaction to the consumption of food. Eating disorders can range from mild mental anguish to life-threatening conditions, and can affect every aspect of an individuals daily life. According to the authors of Surviving such as anorexia nervosa Anorexia nervosa is an eating disorder characterized by extremely low body weight, distorted body image and an obsessive fear of gaining weight.[citation needed] and bulimia nervosa Bulimia nervosa is an eating disorder characterized by recurrent binge eating, followed by compensatory behaviors. The most common form is defensive vomiting, sometimes called purging; fasting, the use of laxatives, enemas, diuretics, and over exercising are also common. The word bulimia derives from the Latin , which originally comes from the
- effects of disease A disease or medical condition is an abnormal condition of an organism that impairs bodily functions, associated with specific symptoms and signs. It may be caused by external factors, such as infectious disease, or it may be caused by internal dysfunctions, such as autoimmune diseases
- athletic competitions where the participants are classified according to their body weight
Contents |
Averages
Sports usage
Participants in sports such as boxing Boxing is a combat sport in which two participants, generally of similar weight, fight each other with their fists. Boxing is supervised by a referee and is typically engaged in during a series of one to three-minute intervals called rounds. There are three ways to win. Victory is achieved if the opponent is knocked out and unable to get up before, wrestling Wrestling is an ancient martial art that uses grappling type techniques such as clinch fighting, throws and takedowns, joint locks, pins and other grappling holds. A wrestling bout is a physical competition, generally between two people, who attempt to gain and maintain a superior position. Wrestling is one of the oldest of martial arts with, rowing, judo Judo , meaning "gentle way", is a modern Japanese martial art (gendai budō) and combat sport, that originated in Japan in the late nineteenth century. Its most prominent feature is its competitive element, where the object is to either throw one's opponent to the ground, immobilize or otherwise subdue one's opponent with a grappling, and weight-lifting Olympic weightlifting, also called Olympic-style weightlifting or weightlifting, is a sport in which participants attempt a maximum weight single lift of a barbell loaded with weight plates are classified according to their body weight, measured in units of mass such as pounds or kilograms. See, e.g., wrestling weight classes Currently, men's freestyle and Greco-Roman wrestling is divided into four main age categories internationally: schoolboys, cadets, juniors, and seniors, boxing weight classes Boxing weight-class names are not always consistent, as shown in the following table:, judo at the 2004 Summer Olympics Judo at the 2004 Summer Olympics took place in the Ano Liossia Olympic Hall and featured 368 judoka competing for 14 gold medals with seven different weight categories in both the men's and women's competitions. Japan dominated the event by taking 8 gold and 2 silver medals, boxing at the 2004 Summer Olympics Boxing at the 2004 Summer Olympics took place in the Peristeri Olympic Boxing Hall. The event was only open to men and bouts were contested over four rounds of two minutes each. Five judges scored the fighters in real time and the boxer with the most points at the end was the winner.
See also
- Anthropometry Anthropometry , in physical anthropology, refers to the measurement of the human individual for the purposes of understanding human physical variation
- Birth weight Birth mass is the mass of a baby at its birth. It has direct links with the gestational age at which the child was born and can be estimated during the pregnancy by measuring fundal height. A baby born within the normal range of mass for that gestational age is known as appropriate for gestational age . Those born above or below that range have
- Body mass index The body mass index , or Quetelet index, is a statistical measurement which compares a person's weight and height. Though it does not actually measure the percentage of body fat, it is used to estimate a healthy body weight based on how tall a person is. Due to its ease of measurement and calculation, it is the most widely used diagnostic tool to
- Body volume index Whereas BMI is based on measurement of total mass, irrespective of the location of the mass, BVI looks at the relationship between mass and volume distribution . Recent studies have highlighted the limitations of BMI as an indicator of individual health risk
- Human height When populations share genetic background and environmental factors, average height is frequently characteristic within the group. Exceptional height variation within such a population is usually due to gigantism or dwarfism; which are medical conditions due to specific genes or to endocrine abnormalities[citation needed]
- List of the heaviest people Chess • Cricket • Cycling • Formula One motorsport • World Rally Championship • Speed Skating • Swimming Athletics: World records (progressions) • Olympic records • National records • US track and field
- Obesity Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health, leading to reduced life expectancy and/or increased health problems. Body mass index , a measurement which compares weight and height, defines people as overweight (pre-obese) when their BMI is between 25 kg/m2 and 30
- Overweight Overweight is generally defined as having more body fat than is optimally healthy. Being overweight is a common condition, especially where food supplies are plentiful and lifestyles are sedentary. As much as 64% of the United States adult population is considered either overweight or obese, and this percentage has increased over the last four
- Underweight The term underweight refers to a human who is considered to be under a healthy weight. The definition is usually made with reference to the body mass index . A BMI of under 18.5 is usually referred to as underweight. This medical definition of underweight may differ from other uses of the term, such as those based on attractiveness
- Bergmann's Rule In zoology, Bergmann's rule is an ecogeographic rule that correlates latitude with body mass in animals. Broadly it asserts that within a species the body mass increases with latitude and colder climate, or that within closely related species that differ only in relation to size that one would expect the larger species to be found at the higher
References
- ^ Encuesta Nacional de Salud 2004 (p. 160)
- ^ [1]
- ^ United States National Health and Nutrition Examination Survey, 1999–2002
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Body Mass Index What is BMI Body Mass Index BMI or Quetelet Index is a statistical measure of the weight of a person scaled according to height It was invented between 1830 and 1850 by the Belgian polymath Adolphe Quetelet during the course of developing social physics
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Fri, 21 Aug 2009 08:30:54 GM
Advice on you to lose . weight. gained during your pregnancy the healthy way. Be the best you can be for your baby.
Q. I am going to be away from a gym for a little while, So i need to supplement my weight training for body weights for a few days. Of course I want to work Chest, back, biceps, Triceps, and legs. How the hell can I do a bicep workout, using my body weight?
Asked by Mr.what - Mon Nov 23 12:59:01 2009 - - 3 Answers - 0 Comments
A. If you have issues with weight do what I did - try acai berry. If you wish to lose weight its superfood qualities help a lot - however those same qualities in addition help those who are trying to bulk up. Magic! There's a free trial going on at the moment at , try it out, what is the worst that could happen?
Answered by Matthew - Mon Nov 23 13:06:39 2009
