Physiological observations on the pulsations of the heart, and on its diurnal revolution and excitability / by Dr. Knox.

  • Knox, Robert, 1791-1862.
Date:
[1837?]
Catalogue details

Licence: Public Domain Mark

Credit: Physiological observations on the pulsations of the heart, and on its diurnal revolution and excitability / by Dr. Knox. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    mind over the heart's action, and their liabiUty to slight aihnents, render observations, in respect to their pulse, of Httle moment. I made at least one hundred carefully noted observations on the pulses of four young persons of different ages, varying from four to', ten, and this was the conclusion I drew; that in child- ren of these ages the irregularities of the pulse, proceeding from numerous causes, renders all observations in respect to them of little or no value. I reserve the tables in case they should be afterwards required to prove these conclusions, but their publi- cation at the present moment I consider of no importance. They gave me more trouble than all the rest of the inquiry. One fact was evident, viz. the younger the person the quicker the pulse. The following is an average table showing the rate of pulsa- tion in four young persons at 4 v. m. and before dinner. Ages. Position. Pulse. 9 Sitting 94 27th Deceml)tr, day 7 102 mild and ruining. 5 106 3 108 Table showing the pulsations of the same young persons (after dinner) at 6 v. u Ages. 9 7 5 3 Position. Observations Mar. Pnlie. Sitting 96 106 116 120 Table XII. made by Mr S., aged 20; height, 6 feet; quite healthy, and of most regular habits. ^ ~ o ■£ Sitting (it home. 14, 15, 16, 17, 18, 19, 20. 21. 2-2, 23, 24., 25, ac, 27, 7 A.M. 63 57 63 60 (jO 58 58 60 54. 56 54 58 60 58 ^^1 9 A. M. * ^ 69 11 A. M. 1 r. 3 p. 5 p. M. 7 p. M. 9 p. AI. 11 p. 110 86 90 78 86 85 63 62 111 SO 86 75 70 85 75 77 108 90 82 76 66 80 74 60 104 74 80 76 72 90 76 64 100 72 85 74 68 74 72 60 72 100 100 78 68 83 72 60 76 85 78 80 96 88 68 72 92 84 72 68 75 90 75 88 100 78 80 72 68 84 68 58 100 85 84 72 64 72 66 62 96 66 70 69 76 80 71 66 106 75 82 70 78 78 68 58 80 100 95 85 80 86 78 66 70 72 88 75 68 75 74 68 94.6 82.6 83 74.9 72.9 73.6 71.6 65.78 • 'Ihe average morning pulse sitting was 78.3. This was deduced from oihi r obsei v.ilions.