On the elimination of nitrogen during rest and exercise on a regulated diet of nitrogen / by E. A. Parkes, M.D.

  • Parkes, Edmund A. (Edmund Alexander), 1819-1876.
Date:
[1867]
Catalogue details

Licence: Public Domain Mark

Credit: On the elimination of nitrogen during rest and exercise on a regulated diet of nitrogen / by E. A. Parkes, M.D. 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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    the urea by Liebig's mercuric nitrate, the chloride of sodium being got rid of. The stools were weighed every day*. On the days of rest the men remained in one room, sitting quite still or lying on the bed ; they did not leave the room. On the first day of exercise they walked twenty-four miles on level ground between 8.10 a.m. and 8 p.m. On the second day they walked thirty-five miles between 8.10 a.m. and 9.45 p.m. The walking was done well, and S., who had been the subject of the previous experiments of exercise on a non-nitrogenous diet, was quite certain that he supported the fatigue much better under the meat diet, than on the former occasion when he was fed on starch and butter. The amount of work done (the weight of their clothes being taken into accoimt) was calculated by Mr. Haughton's formula, viz., that walking on a level surface is equal to lifting of the weight through the distance walked. First day. Second day. Kilogramme- Tons lifted Kilogramme- Tons lifted metres. a foot. metres. a foot. s 129198 = 416 194798 = 627 B 125120 = 403 188605 = 607 The weight of the hodij. The following Table gives the daily variations in the weight of the body during the whole period. The weight was taken at the end of the 24 hours. Ordinary occupation, »» ist day 2nd 3rd 4th Rest 5th 6th Ordinary occupation, 7th 8th 9th „ „ loth Exercise nth th Ordinary occupation, 13th 14th 15th 16th >> lbs. av. HS 145 146 145 144 J43S 144 H5 i4S'S 145 142 139*5 142 143 144 144*5 B. lbs. av. i39'S 140 139 i39S 138-75 138-5 138--5 13925 i39'5 140 137 13s i35'75 I375 138-25 13975 The following Table shows the gain or loss of body-weight in grammes (round numbers). * I determined also the cliloride of sodium and the phosphoric acid (<^n three occa- sions), but I have not included these results, in order not to complicate the statement.
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