Category: V
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Vedas
The oldest and four of the most sacred books of Hinduism (the Rig-Veda, Atbarva-Veda, Yajur-Veda, and Sama-Veda); references to voga in these books have helped scholars trace its origins.
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Vairagya
Nonconcern for result.
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VO2 max (maximal oxygen uptake)
The maximum rate at which the body consumes oxygen during exhaustive exercise. VO2 max is determined by the heart’s ability to pump blood through the lungs to pick up oxygen, deliver oxygen to working muscles, and have muscles extract oxygen from the blood. VO2 max reveals a person’s level of aerobic capacity or fitness—the higher…
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Vigorous physical activity
Rhythmic, repetitive physical activities that use large muscle groups at 70 percent or more of maximum heart rate for age. An exercise heart rate of 70 percent of maximum heart rate for age is about 60 percent of maximal cardiorespiratory capacity and is sufficient for cardiorespiratory conditioning. Vigorous physical activity is exercise that follows the…
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Voluntary dehydration
Exercise-induced dehydration that develops despite an individual’s access to unlimited water. The willful refusal to eat, drink, or accept fluids from health care providers, sometimes used by the terminally ill to hasten death.
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Ventilatory thresholds
Points where the rectilinear rise in minute ventilation breaks from linearity during an incremental exercise to maximum.
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Ventilatory equivalent
The ratio of liters of air processed per one liter of oxygen used (VE/V02).
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Velocity at VO2 max
The speed at which an individual can run when working at his or her maximal oxygen consumption, based both on submaximal running economy and VO2 max.
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Vital capacity
The greatest volume of air that can be forcibly exhaled after the deepest inspiration. The greatest amount of air that can be exhaled following a maximal inhalation. The largest amount of air which a person can exhale at one time. Maximal amount of gas that can be exhaled after a maximal inspiration. Maximum amount of…
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Ventricle
The two large pumping chambers of the heart. The right ventricle pumps blood to the lungs, whereas the left ventricle, which has a muscle wall three times thicker than that of the right ventricle, pumps blood to all parts of the body. Cavities or chambers in the body, generally filled with fluid. In the brain,…