A curve of improvement could be plotted to show how this Air-
crew Squadron justified the procedure in one of their requisites of
physical training and conditioning.

I. Physical Skill—Spot Running to improve 300 yard Shuttle Run.

Date . 5/11 5/12 5/18 5/15 5/16 5/17 5/18 5/19 5/20 5/22 Results

Participants 178 #177 #+198 172 115 197 201 199 198 208

Average Production 286 3885 3841 862 3889 404 424 446 463 486 up 69.9%

Cost Index (P.R.) 582 528 505 508 500 484 498 487 492 480 down 9 %
They cut approximately three seconds on the average for the run.

7. Aarcrew Series—Other Muscles

The fatigue curve pattern and the pattern of the curve of con-
dition apply to the work of any muscles.

Figures 15.and 16 illustrate Production and Costs as acquired by
the use of the arms rather than the legs. The cost in heartbeats
for the use of the arms does not come as high as it does for the
use of the legs.

Curves of improvement in greater production at lowered costs
could be plotted from the Aircrew statistics given below in the
use of muscles of the arms and the abdomen by different squadrons.

II. Physical Skill—Flexion and extension at elbows to improve pull ups and
push ups. The arms are less dextrous than legs.

Date 6/1 6/2 6/3 6/5 6/6 6/7 6/8 6/9 6/12 6/13 Results

Participants TOC VL TTS 182" 179 eh 78: 160° 156 148 247

Average Production 268 282 295 3806 3817 38383 3845 3859 3867 3880 up 41.5%

Cost Index (P.R.) 512 501 487 484 486 460 469 478 476 468 down 7 %
Improved jabbing speed 41.5% Improved pull ups 22%

III. Physical Skill—Extension backward at hips and flexion forward with hands
clasped on back of head while standing to improve sit ups. Least dextrous.

Date 6/1 6/2 6/3 6/5 6/6 6/7 6/8 6/9 6/10 6/12 Results
Participants 178 147 198 120 181 115 145 1238 144 116
Average Production 146 150 166 171 178 191 201 207 210 219 up 49.7%

Cost Index (P.R.) 404 388 386 3877 3872 390 386 3899 402 3881 down 5.5%
Average sit ups went from 48.9 to 69.9 with 1000 seconds supplementary work.

8. Army Specialized Training Reservists Series

This group of 137 approximately seventeen year olds was given
pencils and cards on short notice and directed into the regular
procedures of spot running and pulse taking by Director Olenn.

The figures for the composite fatigue curve and the composite

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