Muscular work, Tema 187Carnegie Institution of Washington, 1913 - 176 páginas |
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Página 29
... begun and the subject is breathing through the mouthpiece and the pipe k , the 3 - way valve r is suddenly turned so as to deflect the air through 8 , n , and k , thus diminishing the dead space . The flexibility of s and k permit ...
... begun and the subject is breathing through the mouthpiece and the pipe k , the 3 - way valve r is suddenly turned so as to deflect the air through 8 , n , and k , thus diminishing the dead space . The flexibility of s and k permit ...
Página 39
... begun at 11 32m a.m. with the current at 1.5 amperes . Between 11h 32m a.m. and 11h 46m a.m. the average speed was 97 revolutions per minute . 7 Pulse - rate at the end of the period . 8 In the interval before this period , the subject ...
... begun at 11 32m a.m. with the current at 1.5 amperes . Between 11h 32m a.m. and 11h 46m a.m. the average speed was 97 revolutions per minute . 7 Pulse - rate at the end of the period . 8 In the interval before this period , the subject ...
Página 42
... begun with the current at 1.5 amperes . Between 10 a.m. and 10h 30m a.m. the average rate was 93 revolutions per minute . With the change the subject found the work extremely difficult . He could hardly believe he was working against ...
... begun with the current at 1.5 amperes . Between 10 a.m. and 10h 30m a.m. the average rate was 93 revolutions per minute . With the change the subject found the work extremely difficult . He could hardly believe he was working against ...
Página 43
... begun at 10h 40m a.m. The pulse - rate at 10h 44m a.m. was 104 ; at 10h 51m a.m. , 120 ; at 10h 55m a.m. , 122 ; at 10h 59m a.m. , 126. Subject began breathing in the circuit of the respiration apparatus at 11 00 158 a.m. , and the ...
... begun at 10h 40m a.m. The pulse - rate at 10h 44m a.m. was 104 ; at 10h 51m a.m. , 120 ; at 10h 55m a.m. , 122 ; at 10h 59m a.m. , 126. Subject began breathing in the circuit of the respiration apparatus at 11 00 158 a.m. , and the ...
Página 44
... begun at 10h 30m a.m. Between 10h 30m a.m. and 10h 40m a.m. the average speed was about 59 revolutions per minute . The pulse - rate at 10h 33m a.m. was 118 ; at 10h 35 a.m. , 124 ; at 10h 37m a.m. , 124 ; at 10h 39m a.m. , 126 . 4 In ...
... begun at 10h 30m a.m. Between 10h 30m a.m. and 10h 40m a.m. the average speed was about 59 revolutions per minute . The pulse - rate at 10h 33m a.m. was 118 ; at 10h 35 a.m. , 124 ; at 10h 37m a.m. , 124 ; at 10h 39m a.m. , 126 . 4 In ...
Términos y frases comunes
1.5 amperes a.m. and 9h a.m. Between 9h a.m. the average a.m. The pulse-rate a.m. the subject absorbed per minute age pulse amount approximately Aver average rate Average respira average speed base-line begun at 9h Benedict and Carpenter bicycle ergometer body C.C. amp calories per minute calorimeter cals carbohydrates Carbon dioxide Date cent combustion computed couch diet Duration eliminated per minute external muscular glycogen grams gross efficiency heat equivalent hour increase interval katabolism kilogrammeters kilograms laboratory load Lying M. A. M. without food mechanical efficiency metabolism motor mouthpiece muscular activity no-load Oxygen absorbed oxygen consumption pedals period the average periods the subject perspiration produced pulse-rate at 8h respiration apparatus respiration experiments respiratory quotient revolutions per minute riding series of experiments severe muscular spirometer subject lay subject M. A. M. subject rode tion-rate tions per minute tory quotient values obtained ventilation work-period Zuntz
Pasajes populares
Página 9 - ... point de variation sensible, la conservation de la chaleur animale est due, au moins en grande partie, à la chaleur que produit la combinaison de l'air pur respiré par les animaux avec la base de. l'air fixe que le sang lui fournit.
Página 11 - ... expressed his belief that the blood was driven through the vessels by the mechanical action of the heart, or that respiration took place according to the common laws of the diffusion of gases. The present generation, on the contrary, is hard at work to find out the real causes of the processes which go on in the living body. They do not suppose that there is any other difference between the chemical and the mechanical actions in the living body, and out of it, than can be explained by the more...
Página 9 - La respiration est donc une combustion, à la vérité fort lente, mais d'ailleurs parfaitement semblable à celle du charbon; elle se fait dans l'intérieur des poumons, sans dégager de lumière sensible, parce que la matière du feu, devenue libre, est aussitôt absorbée par l'humidité de ces...
Página 9 - ... how large a quantity of heat might be produced, by proper mechanical contrivance, merely by the strength of a horse, without either fire, light, combustion, or chemical decomposition; and, in a case of necessity, the heat thus produced might be used in cooking victuals.
Página 11 - Whence it appears that one-quarter of the whole amount of vis viva generated by the combustion of food in the animal frame is capable of being applied in producing a useful mechanical effect, — the remaining three-quarters being required in order to keep up the animal heat, etc.
Página 9 - ... proper mechanical contrivance, merely by the strength of a horse, without either fire, light, combustion, or chemical decomposition; and, in a case of necessity, the heat thus produced might be used in cooking victuals. But no circumstances can be imagined in which this method of procuring heat would not be disadvantageous; for more heat might be obtained by using the fodder necessary for the support of a horse, as fuel.
Página 11 - The majority of the physiologists in the last century, and in the beginning of this century, were of opinion that the processes in living bodies were determined by one principal agent which they chose to call the " vital principle." The physical forces in the living body they supposed could be suspended or again set free at any moment, by the influence of the vital principle ; and that by this means this agent could produce changes in the interior of the body, so that the health of the body would...
Página 9 - ... cette combustion se communique au sang qui traverse les poumons, et de là se répand dans tout le système animal. Ainsi l'air que nous respirons sert à deux objets, également nécessaires à notre conservation : il...