On the effects of the kneading of muscles upon the circulation : local and general / by T. Lauder Brunton and F.W. Tunnicliffe.

  • Lauder Brunton
Date:
[1894?]
Catalogue details

Licence: Public Domain Mark

Credit: On the effects of the kneading of muscles upon the circulation : local and general / by T. Lauder Brunton and F.W. Tunnicliffe. Source: Wellcome Collection.

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    of this for the purpose of reading was necessary. Owing to the fact shown, by Gaskell!, that bleeding from the efferent muscular vein tends to diminish with the length of the observation, any loss of time during a continuous bleeding introduces an important element of error. The animals used for the experiments were cats and dogs, they were fully anzesthetized and were absolutely free from any manifestations of struggling during the bleeding observations. The routine method was to ascertain the amount of blood lost in a given time (i) during simple bleeding, (ii) during kneading of the muscles, (113) after kneading. With regard to the method of massage it should be said that when the animal was under the anaesthetic the cords fastening the legs to the rabbit holder, or the dog table, as the case might be, were loosened, and the buttocks well raised on a cushion. The result of this was that at the desired time massage could be commenced at once, without altering the position of the leg, the hand being passed beneath the leg, and the muscles at the outside of the thigh firmly kneaded between the fingers and thumb. The raising of the limb alone apart from any massage, caused an increase in the flow of blood, and it was to avoid this source of error that the buttocks were well raised at the beginning of the experiment so as to leave room for the introduction of the hand between the board and the animal’s thigh. The experiment protocols are as follows. Experiment I. Female cat. 2°5 kilos. Left leg used. The number of ¢.c. given is in each case the average per 5 secs. during 30 secs. Oss. I. Simple bleeding 2 G.C. - During massage *6:..6.¢. Immediately after massage O.C, Ce 2 mins. after cessation of massage ‘6 c.c¢. 10 mins. _,, . 1 2C.c. Massage was repeated 11 mins. after first massage with following results : During massage 38 C.C. Immediately after massage 38 cc. 7 mins. after massage 12 Cc, Oss. II. ‘Taken after several minutes’ rest. Simple bleeding 08 c.c. During massage “33 CC. Immediately after *1Gic.¢. 1 Ludwig's Arbeiten, loc. cit.
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