2007, Piran, Slovenia

Environmental Ergonomics XII
Igor B. Mekjavic, Stelios N. Kounalakis & Nigel A.S. Taylor (Eds.), © BIOMED, Ljubljana 2007
rectal temperature at the start of the training or on the Dynavit-score. For one of the subjects
the end value of body temperature showed a significant linear change with time. The increase
of heart rate as well as of rectal temperature during the training shows a span of 50 %.
Table 1: Anthropological data for the participants in the study during 10 years.
Subject 1 Subject 2 Subject 3 Subject 4
Age at the begin
of the study / yrs
41 35 32 32
Body height / m 1.87 1.76 1.86 1.86
Body mass minimum 90.1 74.4 87.0 82.9
/ kg
maximum 102.2 80.9 95.5 91.6
mean ± std.dev. 95.5 ±3.4 78.4 ±1.7 91.5 ±2.8 85.9 ±2.8
Dynavit ® - minimum 116 103 77 104
score
maximum 153 132 113 133
(specific
fitness)
mean ± std.dev. 139 ±10 117 ±8 97 ±13 117 ±7
Broca-index minimum 1.03 0.98 1.01 0.96
maximum 1.17 1.06 1.11 1.06
mean ± std.dev. 1.10 ±0.04 1.03 ±0.02 1.06 ±0.03 1.00 ±0.03
BMI / m/kg² minimum 25.8 24.0 25.1 24.0
maximum 29.2 26.1 27.6 26.5
mean ± std.dev. 27.3 ±0.96 25.3 ±0.56 26.4 ±0.82 24.8 ±0.80
Table 2: Statistical data for heart rates and rectal temperatures at the start and at the end of
the SMRT.
Subject 1 Subject 2 Subject 3 Subject 4
Number of SMRT -trainings 14 14 12 13
HR at start
of SMRT /
min -1
minimum
67.5 67.5 74.4 77.3
maximum
88.5
92.8 98.5 100.8
mean ± std.dev. 75.0 ±5.7 81.7 ±7.8 86.9 ±6.8 93.2 ±7.0
HR at end
of SMRT /
min -1
minimum
113.9 137.8 130.0 119.9
maximum
148.1 181.9 171.6 148.3
mean ± std.dev. 133.3 ±11.0 158.0 ±12.5 145.6 ±9.2 136.9 ±9.1
Increase of
HR
/ min -1
minimum
44.6 45.0 49.2 28.0
maximum
75.8 97.6 77.1 60.0
mean ± std.dev. 58.3 ±10.0 76.3 ±13.3 58.7 ±7.9 43.7 ±8.4
Tre at start minimum
36.86 36.92 36.82 37.26
of SMRT maximum
37.42 37.46 37.28 37.71
/ °C mean ± std.dev. 37.15 ±0.17 37.22 ±0.15 37.08 ±0.14 37.54 ±0.14
Tre at end minimum
37.98 38.32 37.95 38.23
of SMRT maximum
39.15 39.08 38.39 39.05
/ °C mean ± std.dev. 38.64 ±0.28 38.71 ±0.23 38.15 ±0.15 38.51 ±0.23
Increase of minimum
0.77 1.20 0.92 0.56
Tre maximum
1.94 1.93 1.41 1.51
/ °C mean ± std.dev. 1.49 ±0.30 1.49 ±0.23 1.09 ±0.16 0.98 ±0.24
Table 3 gives the corresponding data for the heat tolerance test: the increase of heart rate and
body temperature during HTT shows even greater spans as during SMRT. Subject 2 and
subject 4 exceeded Tre = 38.5°C once each; these two exposures were taken out of the
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