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Non-exercise Activity Thermogenesis
Non-exercise activity thermogenesis (), also known as non-exercise physical activity (NEPA), is energy expenditure during activities that are not part of a structured exercise program. NEAT includes physical activity at the workplace, hobbies, standing instead of sitting, walking around, climbing stairs, doing chores, and fidgeting. Besides differences in body composition, it represents most of the variation in energy expenditure across individuals and populations, accounting from 6-10 percent to as much as 50 percent of energy expenditure in highly active individuals. Relationship with obesity NEAT is the main component of activity-related energy expenditure in obese individuals, as most do not do any physical exercise. NEAT, also known as nonresting energy expenditure, is also lower in obese individuals than the general population. NEAT may be reduced in individuals who have lost weight, which some hypothesize contributes to difficulties in achieving and sustaining weight loss. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Expenditure
Energy expenditure, often estimated as the total daily energy expenditure (TDEE), is the amount of energy burned by the human body. Causes of energy expenditure Resting metabolic rate Resting metabolic rate generally composes 60 to 75 percent of TDEE. Because adipose tissue does not use much energy to maintain, fat free mass is a better predictor of metabolic rate. A taller person will typically have less fat mass than a shorter person at the same weight and therefore burn more energy. Men also carry more skeletal muscle tissue on average than women, and other sex differences in organ size account for sex differences in metabolic rate. Obese individuals burn more energy than lean individuals due to increase in the amount of calories needed to maintain adipose tissue and other organs that grow in size in response to obesity. At rest, the largest fractions of energy are burned by the skeletal muscles, brain, and liver; around 20 percent each. Increasing skeletal muscle tissue can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fidgeting
Fidgeting is the act of moving about restlessly in a way that is not ( socially recognized as) essential to ongoing tasks or events. Fidgeting may involve playing with one's fingers, hair, or personal objects (e.g. glasses, pens or items of clothing). In this sense, it may be considered twiddling or fiddling. Fidgeting is commonly used as a label for unexplained or subconscious activities and postural movements that people perform while seated or standing idle. A common act of fidgeting is to bounce one's leg repeatedly. Rings are another common focus of fidgeting; variations include ring spinning, twirling or rolling along a table. Classrooms are sites of fidgeting, and traditionally teachers and students have viewed fidgeting as a sign of diminished attention. Toys have been invented to help with fidgeting. These fidget toys include fidget spinners. Causes and effects Fidgeting may be a result of nervousness, frustration, agitation, boredom, ADHD, excitement, or a combin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weight Loss
Weight loss, in the context of medicine, health, or physical fitness, refers to a reduction of the total body mass, by a mean loss of fluid, body fat (adipose tissue), or lean mass (namely bone mineral deposits, muscle, tendon, and other connective tissue). Weight loss can either occur unintentionally because of malnourishment or an underlying disease, or from a conscious effort to improve an actual or perceived overweight or obese state. "Unexplained" weight loss that is not caused by reduction in calorific intake or increase in exercise is called cachexia and may be a symptom of a serious medical condition. Intentional Intentional weight loss is the loss of total body mass as a result of efforts to improve physical fitness, fitness and health, or to change Human physical appearance, appearance through slimming. Weight loss is the main Management of obesity, treatment for obesity, and there is substantial evidence this can prevent progression from prediabetes to Diabetes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sitting
Sitting is a basic action and resting position in which the body weight is supported primarily by the bony ischial tuberosities with the buttocks in contact with the ground or a horizontal surface such as a chair seat, instead of by the lower limbs as in standing, squatting or kneeling. When sitting, the torso is more or less upright, although sometimes it can lean against other objects for a more relaxed posture. Sitting for much of the day may pose significant health risks, with one study suggesting people who sit regularly for prolonged periods may have higher mortality rates than those who do not. The average person sits down for 4.7 hours per day, according to a global review representing 47% of the global adult population. The form of kneeling where the buttocks sit back on the heels, for example as in the '' Seiza'' and '' Vajrasana'' postures, is also often interpreted as sitting. Prevalence The British Chiropractic Association said in 2006 that 32% of the Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Physiology
The human body is the entire structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organs and then organ systems. The external human body consists of a head, hair, neck, torso (which includes the thorax and abdomen), genitals, arms, hands, legs, and feet. The internal human body includes organs, teeth, bones, muscle, tendons, ligaments, blood vessels and blood, lymphatic vessels and lymph. The study of the human body includes anatomy, physiology, histology and embryology. The body varies anatomically in known ways. Physiology focuses on the systems and organs of the human body and their functions. Many systems and mechanisms interact in order to maintain homeostasis, with safe levels of substances such as sugar, iron, and oxygen in the blood. The body is studied by health professionals, physiologists, anatomists, and artists to assist them in their work. Composition The human body is composed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
