Specific dynamic action or a component of postprandial metabolism has been quantified for more than 250 invertebrate and vertebrate species. It is defined as the extra heat production over and above the caloric value of a given amount of food when used by the body. On the specific dynamic action of protein henry borsook. Sda or thermogenic effect of food is a metabolic response to digestion and assimilation of a meal. Specific dynamic action in the shore crab, carcinus maenas. Each snake was fed a series of experimental meals consisting of amino acid mixtures, simple proteins, simple or complex carbohydrates, or lipids as well as meals of whole animal tissue chicken breast, beef suet, and mouse. They have no reason to doubt that under certain conditions riboflavin deficiency does occur in man. Man and experimental animals are able to adapt to restricted levels of energy intake mainly by a reduction in basal metabolic rate bmr while the effects of energy restriction on the specific dynamic action sda of food and the spontaneous activity are less well established. Specific dynamic action sda, also known as thermic effect of food tef or dietary induced thermogenesis dit, is the amount of energy expenditure above the basal metabolic rate due to the cost of processing food for use and storage. For example, he found that in a fasting dog requiring 400 kcal, feeding of 100 g of carbohydrates produces 425 kcal, 44. Bachelors thesis, faculty of science department of biology.
Historically labeled specific dynamic action or sda, this physiological phenomenon represents the energy expended on all activities of the body incidental to. Specific dynamic action definition of specific dynamic. Subtype subty narrows the focus to a specific subtype. A century of investigation specific dynamic action sda is the term used to refer to the increased metabolic expenditure that occurs in postprandial animals. Material, especially carbohydrates, fats, and proteins, that an organism uses for energy, growth, and maintaining. Specific dynamic action medical definition merriam. The conclusions to be reported in this paper are based on results obtained from 250 experiments on dogs.
The specific dynamic action of 2 diets containing 7 and 37% of protein calories was measured for 6 young men in each case, for periods of 6 to 7 hours post prandium, both in a comfortable and in a cool room. Jul 02, 20 a dynamic action has the following components. Specific dynamic action of food rubber yr observed that carbohydrates, fats and proteins fed to a fasting dog, stimulated the energy metabolism over the basal level to varying extents. Specific dynamic action sda, also known as thermic effect of food tef or dietary induced. The dynamic action framework relies on this id value to reference the region. Specific dynamic action an overview sciencedirect topics. Characteristic among all of these species is a rapid postprandial increase in metabolic rate that upon peaking returns more slowly to prefeeding levels. Specific dynamic action krajnovic, marija 2014 specific dynamic action. Apparent specific dynamic action of largemouth bass, micropterus salmoides f. Specific dynamic action how is specific dynamic action. The term specific dynamic action was given by rubner to the in crease in heat production which follows the ingestion of any of the primary food materials or.
Effect of energy restriction on total heat production, basal. Region select the region name that triggers the dynamic action. The below mentioned article provides a short note on specific dynamic action sda. The total specific dynamic action of highprotein and high carbohydrate diets on human subjects pdf. Food specific dynamic action definition of food specific. Infotype number infty specifies the infotype for which you want the dynamic action triggered. C this article has been rated as cclass on the projects quality scale.
Abstract we quantified the specific dynamic action sda resulting from the ingestion of various meal types in burmese pythons python molurus at 30c. Specific dynamic action is part of the wikiproject biology, an effort to build a comprehensive and detailed guide to biology on wikipedia. How much work this involves depends on the foods consistency and its molecular structure. Field name fieldn starts your action when a maintenance function is performed on a particular field. Specific dynamic action is an integral part of an organisms energy budget, exemplified by accounting for 1943% of the daily energy expenditure of freeranging snakes. The present series of investigations deals with sda of fishes to gain information on its growth structure. Specific dynamic action in planaria bolen 1937 journal. A century of investigation specific dynamic action sda is the term used to refer to the increased metabolic. Specific dynamic action sda, the increase in metabolism stemming from meal digestion and assimilation, varies as a function of meal size, meal type, and body temperature.
Specific dynamic action medical definition merriamwebster. Total specific dynamic action of highprotein and high. The factorial rise in o 2 following a meal specific dynamic action sda ranged between 1. All foodstuffs, after being ingested, increase the rate of heat production though the subject is in a basal state. Specific dynamic action definition at, a free online dictionary with pronunciation, synonyms and translation. Specific dynamic action faculty of science repository. Specific dynamic action sda is the term used to refer to the increased metabolic expenditure that occurs in postprandial animals. Summary when food is ingested by an animal in an environmental temperature above 25c. Hackney phd, dsc, in exercise, sport, and bioanalytical chemistry, 2016. Effects of meal size, meal type, and body temperature on the. The metabolic cost of specific dynamic action sda has yet to be examined in any tuna species. The phenomenon of the extra heat production by the body, over and above the calculated caloric value, when a given food is metabolized by the body, is known as specific dynamic action sda. Aakerckhoff biological laboratories, california institute of technology, abkerckhoff biological laboratories, california institute of technology publication.
Full text full text is available as a scanned copy of the original print version. Specific dynamic action sda, peak v o 2, and scope of peak v o 2 increased with meal size. Specific dynamic action often referred to as apparent specific dynamic action, calorigenic effect or heat increment of feeding refers to the total energy cost involved with ingestion, digestion, absorption and assimilation of a meal. Postprandial increases in metabolism were first documented in animals over two hundred years ago, and have since been observed in every species thus far examined. Postprandial increases in metabolism were first documented in animals over two hundred years ago, and have since been. Specific dynamic action article about specific dynamic. It does not, however, take account of the stimulating effect of the food on metabolism, the specific dynamic action. Dynamicaction retail analytics for ecommerce, store. To test predictions of these three determinants of sda, we quantified and compared the sda responses of nine species of anurans, bombina orientalis, bufo cognatus, ceratophrys ornata, dyscophus antongilli, hyla cinerea. Experiments conducted on resting individualshave shown. This increased heat production due to ingestion above the basal metabolic rate b. At 7c, the sda coefficient and magnitude were significantly lower than at 15c, possibly due in. Lund and presented in partial fulfillment of the requirements for the degree of doctor of philosophy. Prepared in the department of zoology of the university of texas under the direction of prof.
Links to pubmed are also available for selected references. On the specific dynamic action of protein henry borsook, and. Heat production by brown adipose tissue which is activated after consumption of a meal is an additional component of dietary induced thermogenesis. Apparent specific dynamic action of largemouth bass. Volume, water, and energy content of meals, sda, and sda coef. Mid this article has been rated as midimportance on the projects importance scale. The dynamic action framework relies on this id value to reference the button. This is known as the specific dynamic action of foodstuffs. The purpose of the present communication is to show that the course of the specific dynamic action of protein parallels the course of nitrogen excretion. Specific dynamic action, submaximal heart rates, preexercise food. Creation of dynamic actions personnel administration.
With regression analysis, we found that baseline metabolic rates of t. Specific dynamic action in ectothermic vertebrates. The animals rested quietly in a respiration calorimeter, at an environmental temperature of 26 c. Get a printable copy pdf file of the complete article 1. Working in professor lusks laboratory, the writer 2 investigated the specific dynamic action of certain proteins of varying origin and of widely differing content of glycine and alanine. Kerckhoff laboratories of the biological sciences, california institute of technology, pasadena, cal. The energetic consequence of specific dynamic action in. Apparent sda rose curvilinearly with ration size, the. The specific dynamic action sda of a food represents the effort or energy that the body has to use to break down the food until it is reduced to its basic unit, which is the only form in which it can enter the bloodstream. The total specific dynamic action of highprotein and highcarbohydrate diets on human subjects pdf. Oxygen consumption attributable to apparent specific dynamic action sda was measured in relation to feeding level and body weight in largemouth bass, micropterus salmoides, forced to swim at 1. Specific dynamic action, postprandial thermophily, and the.
Effects of meal size, meal type, and body temperature on. Specific dynamic action in the shore crab, carcinus maenas l. The thermic effect of food tef, also called specific dynamic action and dietary induced thermogenesis, is the amount of energy expenditure above the rmr. Introduction which is referred to as the specific dynamic action. Specific dynamic action, apparent assimilation efficiency. Nov 16, 2006 specific dynamic action sda, the increase in metabolism stemming from meal digestion and assimilation, varies as a function of meal size, meal type, and body temperature. The effect of meal composition on specific dynamic action in. On the specific dynamic action of protein caltechauthors. The thermic effect of food tef, also called specific dynamic action and dietary induced thermogenesis, is the amount of energy expenditure above the rmr due to the ingestion and digestion of food for use as energy or conversion to a storage form. Creation of dynamic actions personnel administration sap. The effect of meal composition on specific dynamic action. Specific dynamic action is an integral part of an organisms energy budget, exemplified by accounting for 1943% of the daily. Theresults given in tables 1 and 2 andfigures 1 and2wereobtained onthe samedog. It is also known as calorigenic action or thermogenic action or thermic action effect of food.
Rubber yr observed that carbohydrates, fats and proteins fed to a fasting dog, stimulated the energy metabolism over the basal level to varying extents. Of the many investigations reported on the growth of fishes, a few involve measurements of the stimulating effect of food on metabolism, i. Mar 09, 2015 the phenomenon of the extra heat production by the body, over and above the calculated caloric value, when a given food is metabolized by the body, is known as specific dynamic action sda. Find out information about specific dynamic action.
888 192 1055 766 358 964 1505 44 262 199 378 991 191 607 196 73 1148 793 596 1037 1306 1034 743 12 949 988 669 1466 1009 490 938 81 693 1008 1329 991 1194