﻿174 
  Dr. 
  A. 
  D. 
  Waller. 
  The 
  Physiological 
  Cost 
  of 
  Muscular 
  

  

  Labourer 
  No. 
  1. 
  — 
  Age 
  51. 
  Weight 
  (clothed), 
  84 
  kilos.; 
  height, 
  1 
  - 
  71 
  metre 
  

   (surface 
  calculated 
  = 
  T96 
  sq. 
  metre), 
  East 
  Surrey 
  Docks. 
  Three 
  days' 
  

   continuous 
  observation. 
  

  

  Time. 
  

  

  7.30 
  

  

  8.30 
  

   8.33 
  

   9.30 
  

   9.33 
  

   10.30 
  

   10.34 
  

   11.30 
  

   11.34 
  

  

  Time 
  of 
  

   sampling 
  

   in 
  

  

  seconds. 
  

  

  Ventila- 
  

   tion 
  in 
  

   litres. 
  

  

  Ventila- 
  

   tion 
  in 
  

  

  c.c. 
  

   per 
  sec. 
  

  

  co 
  2 
  

  

  per 
  

   cent. 
  

  

  CO 
  

  

  2 
  m 
  

   c.c. 
  

  

  per 
  sec. 
  

  

  60 
  

  

  45 
  

   60 
  

   42 
  

   60 
  

   40 
  

   60 
  

   45 
  

   60 
  

  

  11 
  

  

  12 
  

   13 
  

   14 
  

   12 
  

   17 
  

   14 
  

   20 
  

   11 
  

  

  183 
  

  

  266 
  

   216 
  

   333 
  

   2U0 
  

   425 
  

   233 
  

   444 
  

   183 
  

  

  2-4 
  4 
  '39 
  

  

  7-48 
  I 
  

  

  4- 
  96/ 
  

   10 
  -65 
  1 
  

  

  5- 
  60 
  J 
  

  

  14 
  -86 
  I 
  

   7-00 
  / 
  

  

  15 
  "09 
  I 
  

   5-12 
  f 
  

  

  1.0 
  

  

  55 
  

  

  15 
  

  

  272 
  

  

  3 
  

  

  •0 
  

  

  8 
  16 
  

  

  2.0 
  

  

  43 
  

  

  18 
  

  

  418 
  

  

  2 
  

  

  •8 
  

  

  11 
  70 
  

  

  2.3 
  

  

  60 
  

  

  14 
  

  

  2:'3 
  

  

  2 
  

  

  •2 
  

  

  5 
  12 
  

  

  3.0 
  

  

  45 
  

  

  20 
  

  

  444 
  

  

  3 
  

  

  •2 
  

  

  14-20 
  

  

  3.4 
  

  

  60 
  

  

  17 
  

  

  283 
  

  

  2 
  

  

  •4 
  

  

  6-79 
  

  

  4.0 
  

  

  43 
  

  

  20 
  

  

  448 
  

  

  3 
  

  

  •8 
  

  

  18-54 
  

  

  4.4 
  

  

  60 
  

  

  18 
  

  

  300. 
  

  

  2 
  

  

  •6 
  

  

  7-80 
  

  

  7.30 
  

  

  60 
  ' 
  

  

  12 
  

  

  200 
  

  

  

  •5 
  

  

  5 
  

  

  •00 
  

  

  9.0 
  

  

  40 
  

  

  22 
  

  

  555 
  

  

  I 
  

  

  •8 
  

  

  15 
  

  

  ■54 
  

  

  9.3 
  

  

  60 
  

  

  23 
  

  

  383 
  

  

  1 
  

  

  •7 
  

  

  6 
  

  

  •51 
  

  

  10.0 
  

  

  42 
  

  

  21 
  

  

  500 
  

  

  3 
  

  

  ■o 
  

  

  15 
  

  

  •00 
  

  

  10.3 
  

  

  60 
  

  

  18 
  

  

  300 
  

  

  2 
  

  

  •8 
  

  

  8 
  

  

  ■40 
  

  

  11.0 
  

  

  40 
  

  

  22 
  

  

  550 
  

  

  3 
  

  

  •1 
  

  

  17 
  

  

  •05 
  

  

  11.3 
  

  

  60 
  

  

  17 
  

  

  233 
  

  

  2 
  

  

  •9 
  

  

  6 
  

  

  •75 
  

  

  11.45 
  

  

  40 
  

  

  23 
  

  

  575 
  

  

  3 
  

  

  ■6 
  

  

  20 
  

  

  •70 
  

  

  11.48 
  

  

  60 
  

  

  19 
  

  

  316 
  

  

  3 
  

  

  

  

  9 
  

  

  ■48 
  

  

  1.0 
  

  

  60 
  

  

  21 
  

  

  

  2 
  -8 
  

  

  9 
  

  

  •80 
  

  

  2.0 
  

  

  45 
  

  

  22 
  

  

  

  3 
  -0 
  

  

  14 
  

  

  ■64 
  

  

  2.3 
  

  

  60 
  

  

  19 
  

  

  

  2-7 
  

  

  8 
  

  

  •53 
  

  

  3.0 
  

  

  40 
  

  

  20 
  

  

  

  3-3f 
  

  

  16 
  

  

  ■50 
  

  

  3.3 
  

  

  60 
  

  

  16 
  

  

  

  3 
  -1 
  

  

  8 
  

  

  •24 
  

  

  4.0 
  

  

  40 
  

  

  23 
  

  

  

  3-4 
  

  

  19 
  

  

  •50 
  

  

  4.3 
  

  

  60 
  

  

  20 
  

  

  

  3 
  -0 
  

  

  10 
  

  

  •00 
  

  

  1.0 
  

  

  60 
  

  

  18 
  

  

  300 
  

  

  2 
  

  

  ■8 
  

  

  8 
  

  

  •40 
  

  

  J 
  2.0 
  

  

  40 
  

  

  21 
  -5 
  

  

  537 
  

  

  3 
  

  

  •o 
  

  

  16 
  

  

  ■in 
  

  

  \ 
  2.3 
  

  

  60 
  

  

  20 
  

  

  333 
  

  

  2 
  

  

  •6 
  

  

  8 
  

  

  •65/ 
  

  

  r 
  3.0 
  

  

  40 
  

  

  23 
  

  

  575 
  

  

  3 
  

  

  •5 
  

  

  20 
  

  

  

  I 
  3.5 
  

  

  60 
  

  

  19 
  

  

  316 
  

  

  3 
  

  

  '2 
  

  

  10 
  

  

  :;;} 
  

  

  / 
  4.0 
  

  

  40 
  

  

  22 
  

  

  550 
  

  

  3 
  

  

  ■5 
  

  

  19 
  

  

  ■8U 
  1 
  

  

  \ 
  4.3 
  

  

  60 
  

  

  20 
  

  

  333 
  

  

  3 
  

  

  ■o 
  

  

  10 
  

  

  •00 
  J 
  

  

  7.30 
  

  

  60 
  

  

  14 
  

  

  233 
  

  

  2 
  2 
  

  

  512 
  

  

  8.0 
  

  

  50 
  

  

  22 
  

  

  440 
  

  

  2 
  -8 
  

  

  12-32 
  

  

  8.3 
  

  

  60 
  

  

  18 
  

  

  300 
  

  

  2-4 
  

  

  7 
  -20 
  

  

  9.0 
  

  

  40 
  

  

  21 
  

  

  525 
  

  

  2 
  8 
  

  

  14 
  7" 
  

  

  9.3 
  

  

  60 
  

  

  20 
  

  

  333 
  

  

  2-4 
  

  

  8-30 
  

  

  10.0 
  

  

  40 
  

  

  22 
  

  

  555 
  

  

  3 
  -0 
  

  

  16 
  -65 
  

  

  10.3 
  

  

  60 
  

  

  18 
  

  

  300 
  

  

  3 
  

  

  9 
  -00 
  

  

  11.0 
  

  

  40 
  

  

  24 
  

  

  600 
  

  

  2-9 
  

  

  17 
  • 
  4 
  ) 
  

  

  11.3 
  

  

  60 
  

  

  20 
  

  

  333 
  

  

  2-7 
  

  

  9 
  -00 
  

  

  12.0 
  

  

  40 
  

  

  23 
  

  

  575 
  

  

  3 
  -O 
  

  

  17 
  -00 
  

  

  12.3 
  

  

  60 
  

  

  19 
  

  

  316 
  

  

  2-8 
  

  

  8 
  80 
  

  

  Wednesday 
  December 
  4, 
  1918. 
  

   After 
  £ 
  mile 
  walk 
  followed 
  by 
  

  

  5 
  mins. 
  rest. 
  

  

  Laying 
  a 
  concrete 
  floor. 
  Chiefly 
  

   " 
  tapping 
  " 
  and 
  trowelling. 
  

  

  Immediately 
  after 
  5 
  mile 
  fast 
  walk. 
  

  

  [•"Tapping" 
  and 
  trowelling. 
  

  

  J 
  

  

  Thursday, 
  December 
  5. 
  

   After 
  i 
  mile 
  walk 
  and 
  5 
  mins. 
  rest. 
  

  

  I 
  Finished 
  with 
  concrete 
  floor 
  at 
  10, 
  

   when 
  moved 
  tools 
  to 
  another 
  

   Y 
  place, 
  and 
  prepared 
  to 
  lay 
  

   ] 
  another 
  floor. 
  Moving 
  gravel 
  

   and 
  other 
  building 
  materials. 
  

  

  After 
  i 
  mile 
  fast 
  walk. 
  

  

  [Laying 
  concrete 
  floor. 
  Work 
  

   f 
  rather 
  heavier 
  than 
  usual. 
  

  

  Friday, 
  December 
  6. 
  

   After 
  i 
  mile 
  walk 
  and 
  5 
  mins. 
  rest. 
  

  

  > 
  Laying 
  concrete 
  floor. 
  

  

  J-Do. 
  

  

  