2007, Piran, Slovenia

Occupational Thermal Problems
All items were lifted, or lowered, vertically 1.5 m from the ground to truck tray
height. The typical carriage distance was 120 m for all items.
Figure 1: Total, high-impact and low-impact training time for project participants
(N=9) and non-participants (N=12) * denotes a significant difference (P< 0.05).
Forty-four percent of these tasks involved lift and carrying activities conducted on land, and
using primarily the upper-body muscle groups. Twenty-two percent involved tasks associated
with arm pulling, but utilising both the upper- and lower-body musculature. On the basis of
current diver strength measurements, it may be concluded that satisfactory performance of
these duties would require an upper-body strength-mass ratio of between 1.2-1.6 (Taylor et
al., 2000).
Table 2: Summary of observations relating to cardiovascular strain (N =3-5 divers).
Task Average
heart rate
Maximal
heart rate
Cardiovascular
impulse
Cardiovascular
load
Bauer compressor carriage 155.6 180 580.2 15.0
LAR V "stomping" 139.4 159.5 826.4 24.8
Bomb suit 133 170 1773.8 56
Jackstay handling: water
wind up
Jackstay handling: water
pull up
151.3 176 84.3 12.8
145.3 177 652.8 10
Ladder climb 126.9 152.8 389.9 13.2
LAR V hard swim 131 165.5 10026.4 130.6
A5800 easy swim 95.7 108 5481.3 92
A5800 hard swim 104 121 3925.8 65.9
633