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Metabolic Equivalent
The metabolic equivalent of task (MET) is the objective measure of the ratio of the rate at which a person expends energy, relative to the mass of that person, while performing some specific physical activity compared to a reference, set by convention at 3.5 mL of oxygen per kilogram per minute, which is roughly equivalent to the energy expended when sitting quietly. Quantitative definitions Based on oxygen utilization and body mass The original definition of metabolic equivalent of task is the oxygen used by a person in milliliters per minute per kilogram body mass divided by 3.5. Other definitions which roughly produce the same numbers have been devised, such as: : \text\ = 1 \, \frac\ = 4.184 \, \frac = 1.162 \, \frac where * kcal = kilocalorie * kg = kilogram * h = hour * kJ = kilojoule * W = watt Based on watts produced and body surface area Still another definition is based on the body surface area, BSA, and energy itself, where the BSA is expressed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yoga As Exercise
Yoga as exercise is a physical activity consisting mainly of postures, often connected by flowing sequences, sometimes accompanied by breathing exercises, and frequently ending with relaxation lying down or meditation. Yoga in this form has become familiar across the world, especially in America and Europe. It is derived from medieval Haṭha yoga, which made use of similar postures, but it is generally simply called "yoga". Academics have given yoga as exercise a variety of names, including modern postural yoga and transnational anglophone yoga. Posture is described in the ''Yoga Sutras'' II.29 as the third of the eight limbs, the ashtanga, of yoga. Sutra II.46 defines it as that which is ''steady and comfortable'', but no further elaboration or list of postures is given. Postures were not central in any of the older traditions of yoga; posture practice was revived in the 1920s by yoga gurus including Yogendra and Kuvalayananda, who emphasised its health benefits. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exercise Physiology
Exercise physiology is the physiology of physical exercise. It is one of the allied health professions, and involves the study of the acute responses and chronic adaptations to exercise. Exercise physiologists are the highest qualified exercise professionals and utilise education, lifestyle intervention and specific forms of exercise to rehabilitate and manage acute and chronic injuries and conditions. Understanding the effect of exercise involves studying specific changes in muscular, cardiovascular, and neurohumoral systems that lead to changes in functional capacity and strength due to endurance training or strength training. The effect of training on the body has been defined as the reaction to the adaptive responses of the body arising from exercise or as "an elevation of metabolism produced by exercise". Exercise physiologists study the effect of exercise on pathology, and the mechanisms by which exercise can reduce or reverse disease progression. History British phy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Health And Human Services
The United States Department of Health and Human Services (HHS) is a cabinet-level executive branch department of the U.S. federal government created to protect the health of all Americans and providing essential human services. Its motto is "Improving the health, safety, and well-being of America". Before the separate federal Department of Education was created in 1979, it was called the Department of Health, Education, and Welfare (HEW). HHS is administered by the Secretary of Health and Human Services, who is appointed by the president with the advice and consent of the United States Senate. The position is currently held by Xavier Becerra. The United States Public Health Service Commissioned Corps, the uniformed service of the PHS, is led by the Surgeon General who is responsible for addressing matters concerning public health as authorized by the secretary or by the assistant secretary for Health in addition to his or her primary mission of administering the Commission ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VVO2max
vV̇O2max (velocity at maximal oxygen uptake) is an intense running or swimming pace. In a constant rate exercise, this is the minimum speed for which the organism's maximal oxygen uptake is reached (after a few minutes of exercise at this intensity) ; at higher paces, any additional increase in power is provided by anaerobic processes. In an incremental exercise, it is the first speed at which any increase in exercise intensity fails to elicit an increase in oxygen consumption. The vV̇O2max of world class middle- and long-distance runners may exceed or 2:30/km pace ( or about 4:00/mile), making this speed slightly comparable to 3000 m race pace. For many athletes, vV̇O2max may be slightly slower than or mile race pace. Training Research by Véronique Billat has shown that training at vV̇O2max pace improves both V̇O2max and the economy required to maintain pace at this intensity. Training at vV̇O2max takes the form of interval workouts. For example, with 3 minute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VO2 Max
VO2 max (also maximal oxygen consumption, maximal oxygen uptake or maximal aerobic capacity) is the maximum rate of oxygen consumption attainable during physical exertion. The name is derived from three abbreviations: "V̇" for volume (the dot appears over the V to indicate "per unit of time"), "O2" for oxygen, and "max" for maximum. A similar measure is VO2 peak (peak oxygen consumption), which is the measurable value from a session of physical exercise, be it incremental or otherwise. It could match or underestimate the actual VO2 max. Confusion between the values in older and popular fitness literature is common. The measurement of V̇O2 max in the laboratory provides a quantitative value of endurance fitness for comparison of individual training effects and between people in endurance training. Maximal oxygen consumption reflects cardiorespiratory fitness and endurance capacity in exercise performance. Elite athletes, such as competitive distance runners, racing cyclists or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calorimetry
In chemistry and thermodynamics, calorimetry () is the science or act of measuring changes in ''state variables'' of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints. Calorimetry is performed with a calorimeter. Scottish physician and scientist Joseph Black, who was the first to recognize the distinction between heat and temperature, is said to be the founder of the science of calorimetry. Indirect calorimetry calculates heat that living organisms produce by measuring either their production of carbon dioxide and nitrogen waste (frequently ammonia in aquatic organisms, or urea in terrestrial ones), or from their consumption of oxygen. Lavoisier noted in 1780 that heat production can be predicted from oxygen consumption this way, using multiple regression. The dynamic energy budget theory explains why this procedure is correct. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basal Metabolic Rate
Basal metabolic rate (BMR) is the rate of food energy, energy expenditure per unit time by endotherm, endothermic animals at rest. It is reported in energy units per unit time ranging from watt (joule/second) to ml O2/min or joule per hour per kg body mass J/(h·kg). Proper measurement requires a strict set of criteria to be met. These criteria include being in a physically and psychologically undisturbed state and being in a Thermal neutral zone, thermally neutral environment while in the post-absorptive state (i.e., not actively digesting food). In Bradymetabolism, bradymetabolic animals, such as fish and reptiles, the equivalent term standard metabolic rate (SMR) applies. It follows the same criteria as BMR, but requires the documentation of the temperature at which the metabolic rate was measured. This makes BMR a variant of standard metabolic rate measurement that excludes the temperature data, a practice that has led to problems in defining "standard" rates of metabolism for ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthropogenic Metabolism
Anthropogenic metabolism, also referred to as metabolism of the anthroposphere, is a term used in industrial ecology, material flow analysis, and waste management to describe the material and energy turnover of human society. It emerges from the application of systems thinking to the industrial and other man-made activities and it is a central concept of sustainable development. In modern societies, the bulk of anthropogenic (man-made) material flows is related to one of the following activities: sanitation, transportation, habitation, and communication, which were "of little metabolic significance in prehistoric times". Global man-made stocks of steel in buildings, infrastructure, and vehicles, for example, amount to about 25 Gigatonnes (more than three tonnes per person), a figure that is surpassed only by construction materials such as concrete. Sustainable development is closely linked to the design of a sustainable anthropogenic metabolism, which will entail substantial changes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surya Namaskar
Sun Salutation, also called Surya Namaskar(a) or Salute to the Sun (), is a practice in yoga as exercise incorporating a flow sequence of some twelve gracefully linked asanas. The asana sequence was first recorded as yoga in the early 20th century, though similar exercises were in use in India before that, for example Indian wrestling, among wrestlers. The basic sequence involves moving from a standing position into Downward dog, Downward and Upward Dog poses and then back to the standing position, but many variations are possible. The set of 12 asanas is dedicated to the Hinduism, Hindu solar deity, Surya. In some Indian traditions, the positions are each associated with a different mantra. The precise origins of the Sun Salutation are uncertain, but the sequence was made popular in the early 20th century by Bhawanrao Shriniwasrao Pant Pratinidhi, the Rajah of Aundh State, Aundh, and adopted into yoga by Krishnamacharya in the Mysore Palace, where the Sun Salutation classes, not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun Salutation
Sun Salutation, also called Surya Namaskar(a) or Salute to the Sun (), is a practice in yoga as exercise incorporating a flow sequence of some twelve gracefully linked asanas. The asana sequence was first recorded as yoga in the early 20th century, though similar exercises were in use in India before that, for example among wrestlers. The basic sequence involves moving from a standing position into Downward and Upward Dog poses and then back to the standing position, but many variations are possible. The set of 12 asanas is dedicated to the Hindu solar deity, Surya. In some Indian traditions, the positions are each associated with a different mantra. The precise origins of the Sun Salutation are uncertain, but the sequence was made popular in the early 20th century by Bhawanrao Shriniwasrao Pant Pratinidhi, the Rajah of Aundh, and adopted into yoga by Krishnamacharya in the Mysore Palace, where the Sun Salutation classes, not then considered to be yoga, were held next door t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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