with the control group (P<0.05). At the same time, the telomerase activity of excessive
hemoglobinemia showed insignificant changes (p0.05). All the findings above suggest that an
increase in telomerase activity is a new modulatory mechanism affecting the proliferation of red
blood cells in HAPC patients. The changes in telomerase activity may play an important during
the development of HAPC.
92.
THE RELATIONSHIP BETWEEN 347 HIGH ALTITUDE CAR ACCIDENTS AND
PHYSIOLOGICAL RHYTHMS. Huang Hui-Qun
1
, Hu Hong-Qin
1
. Qinghai Communications
Hospital;Xining,Qinghai,,P.R. China
1
.
In order to study the relationship between car accidents and physiological rhythms in the high
altitude hypoxia environment, we conducted a retrospective survey of 347 car accidents caused
by male drivers (20--50 years old) from seven transport companies in Qinghai Province (at an
altitude of 2,500--5,000 meters) over a period of three years. We made a detailed record of sites,
climates, reasons, and responsibilities inthe car accidents to see if they were mechanical ones. We
checked on the drivers' dates of birth and identified the curve for the driver's physiological
rhythm at the time the accidents occurred. Based on the physiological rhythm phases, we
conducted a statistical analysis. Results:
Driver's physiological rhythm phases at the time of of 347 car accidents
Critical period
Multiple low tide
period
Multiple high
tide period
Categories Of
different stages
n %
n %
n %
Physical
strength
62±41.94
37±30.92
Emotion
49±33.18
44±35.96
Intellect
37±24.88
40±32.89
Total
148±42.65
121±34.87
78±22.48
The comparison of accident occurrence at different stages exhibits no significant difference
(p 0.05). Conclusion: Although 77.25% of car accidents occurred at critical and multiple low rate
periods, the statistics cannot confirm that there is any correlation between car accidents, high
altitude hypoxia, and three phases of physiological rhythm. This conforms to the results of reports
at home and abroad. Cautions should be taken in the use of the theory of human physiological
rhythm for guidance of the safety for road transport.
93.
AN ANALYSIS OF ENERGY METABOLIC CHANGES IN ROAD BUILDERS
PERFORMING DIFFERENT TYPES OF WORK AT DIFFERENT ALTITUDES. Huang Hui-
Qun
1
, Guo Zhi-Jian
1
. Qinghai Communications Hospital;Xining, Qinghai,, P.R. China
1
.
To study the effect of the high altitude hypoxic environment on the work capacity of road
builders, this research randomly chose test subjects from five construction sites at elevations of
10m, 2,260m, 3,400m, 4,600m and 5,020m. The test subjects were from the same area
(1,800--2,260m) and were physically healthy male laborers (aged from 18 to 28) working on
public projects. The subjects were divided into three groups according to their types of work:
walking tractors, roadbed leveling and earth excavating. Each group consisted of 12-14 test
subjects. Methods: A survey was made of the man-hour utility rate.Using a DEF-I
Multifunctional Pulmonary Ventilation Volume Apparatus, we tested each subject on his
pulmonary ventilation, heart rate and time required to perform each type of action. The
calculation was made in accordance with the State Standard (GB3869-83) energy metabolic rate.
Results:
table 1 Test Results for Energy Metabolic Rate and Heart Rate for the Same Action at
Different Altitudes X±SD
Alti
tude m
Earth excavating
Roadbed leveling
Walking Tractor
Driving
