The effect of transportation conditions on the performance capacity of a passenger were studied, in order to establish the time for his most rapid inclusion in production activity after the trip. It was concluded that the transportation conditions impair the functional condition of the passenger's organism. The restoration of the functional state to the initial level occurs mainly in the space of one day. It is shown that it is necessary to take into consideration the adaptation of the organism during transfer to another climate zone

Lakshin, A. M.

Novoselov, V. P.

English

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(NASA-TM-76350) PHYSIOLOGICAL RZACTiONS OF
A PASSENGER TO TUANSPURTATION CONDITIONS
(NASA) 8 p HC A021MF A01	 CrSCL 06S
N80 -32077
Unclas
G5/52 28691
NAk'A. TECHNICAL MEMORANDUM
	
NASA TM-76350
"PHYSIOLOGICAL REACTIONS OF A PASSENGER TO
TRANSPORTATION CONDITIONS
Candidates of Medical Sciences A. M. Lakshin
and V. P. Novoselov
Translation of 110 fiziologicheskikh reaktsiya'kh
organizma passazhira na usloviya perevozki,"
Gigiyena i Sanitariya, No. 9 (Sap), 1979, pp. 84-85
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NATIONAL AEROANUTICS AND SPACE ADMINISTRA' I^^ z6^ Q^ ^^`^
WASHINGTON D.C. 20546 	 AUGUST 1980
1,	 Report Nv,. 2, Government Accession No. X	 Recipient'. Catalog No.
NASA TM-76350
t.	 Title •mi Subtitle S.	 Report Date
PHYSIOLOGICAL REACTIONS OF A PASSENGER TO AUGUST 1980
6.	 Performing Organisation CodeTRANSPORTATION CONDITIONS
7.	 Authot(s) 6.	 Performing Organisation Report No.
A. Me Lakshin and V. P. Novoselov
10.
	
Work Unit No.
9.	 Performing Orgonisuthon Nome and Address 11.	 Contract or Otani No.
SCITRAN NASW-3198
13.	 Typo of Raper$ end Period Coverer)Box 5456
Santa Barbara, CA 93108 Translation
12.	 Sponsoring Agency Nome and Address'
National Aeronautics and Space Administration 1d. Sponsoring Agency Code
Washington,	 D.C.	 20546
15.	 Supplementory Notes
Translation of "0 fiziologicheskikh reaktsiyakh organizma passazhira.na
usloviya perev6zk:i.", Gigiyena i Sanitariya, No.	 9 (Sep), 1979 ,
pp. 84-85
16.	 Abstract
In this work, the effect of transportation conditions on the
performance capacity of a passenger •were.studied, in order to-establish
the time for his , most , rapid inclusion in production activity after the
trip.
Based on the'conducted studies one can draw the conclusion, that
the transportation conditions impair the functional condition .of the
passenger's organism.
The restoration of the functional state to the initial levPl
occurs mainly . in the space otf one day.	 It is also necessary to take
into consideration 'the adaptation of the organism during transfer to
another clittate zone.
17. Key Words (Selected by Author(s)) 18.	 Dis oil but4n'Stotemont
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19.	 Secvrlty Clossli. (of this repot) 20.	 Secvrlty Goesli. (oi this pegs) 21• No. of Pages 22.
Unclassified Unclassified 6
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UDC 612-06:656.2-052
PHYSIOLOGICAL REACTIONS OF A PASSENGER TO
TRANSPORTATION COR-.LTIONS
By Candidates of Medical Sc' nces A. M. Lakshin and V. P. Novoselov*
In this work we studied the effect of transportation conditions on the
	 /84**
performance capacity of a passenger in order to establish the time for his
most rapid possible inclusion in production activity after the trip. This is
especially important for such a category of passengers as participants of the
student construction teams that travel to work immediately after intensive
intellectual activity linked to the preparation of examinations and their
passing.
Eighteen practically healthy students in age from 18 to 25 were selected
as the subjects; they had departed in the student construction team for work
after the examination session. The studies were made in July 1977 before the
trip, during the trip in an open type car along the route Moscow-Astrakhan'
that lasted 32 li and after arrival. The microclimate parameters in the car
were the following: air temperature from 25 to 27°C in the first 12 h of the
trip and from 28 to 33,.4°C on the second day, relative air humidity 84 and 44%
respectively, velocity 3f movement of the air in the zone of the sleeping
*All-Union Scientific research Institute of Railroad Hygiene of the Main Sani-
tation Admi.nistrati;n of the USSR Ministry of Camnunication, Moscow
**Numbers in margin indicate pagination in original foreign text
1
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btuzks 0.04-0.18 nVs, in the passage up to 0.37 m/s.
The conditions of the passengers was judged fran the degree of change of
certain functional indices in the trip dynamics. For this purpose an analysis
was made in the subjects of tie time for simple visual-motor reaction with the
help of a chronoreflexameter in the ,system of experimental production of the
F. F. Frisman Moscow Scientific Research Institute; the rate of processing
information by visual analyzer with the use of the correction test—Landolt's
ring (to calculate the rate of processing information a formula was used that
was suggested by A. A. Genkin et al.), physical performance capacity with the
help of the physiological test PWC-170; strength of the flexor muscles in the
right wrist with the help of Abolakov's dynamometer; pulse rate was taken by
palpation. Before determination of the time for simple visual-motor reaction
and the rate of processing information by visual analyzer a stable dynamic
stereotype was preliminarily worked out for the subjects. The stereotype was
	 /85
considered developed if several of the last measurements differed little. The
statistical processing of the data was conducted according to Stadent-Fisher.
The studies demonstrated, that in the first 12 h of the trip, when the
air temperature in the car was in the limits of 25-27°C with relative air
humidity 84-650, the rate of processing information by the visual analyzer was
reduced in the passengers(P{0.01), while. the pulse rate in this period did not
significantly change. On the second day of the trip, with air temperature in
the car 28-33.4°C, and relative humidity 65-44o a decrease was observed in
the physical performance capacity according to test data (PWC-170;(P.0.05) and
increase in the dynamics of the pulse rate (P40.02), the rate of processing
information of the visual analyzer was sanewhat increased, but remained lower
2
than the initial (P40.02). Upon arrival at the site an increase was found in
the time for simple visual-motor reaction (p X0.01) and the greatest increase in
pulse rate (pi0.01). The .rate of processing information and PWC-170 test at-
this time were not determined. In the morning of the next day, the time for
the simple visual-motor reaction in the subjects was in the linuts of the initial
amounts, the rate of processing information by visual analyzer remained reduced
(p,0.01), and the physical performance capacity (PWC-170) approached that
xecorded in the beginning of the trip (p W .01); the pulse rate was somewhat
diminished, but still had not reached the initial level (P40.01). Within 1
day after arrival the functional indices, with the exception of pulse rate,
practically had reached the initial level. The pulse rate remained four beats
higher than the original, apparently, due to the influence of the climate zone,
the higher air temperature in Astrakhan' as compared to Moscow. No significant
changes were noted in the strength of the flexor muscles of the hand i.n the
subjects dur.i-x3 the entire period of observations. The revealed shifts in
strength were statistically unreliable(p 40.1).
Thus, the trip conditions had the earliest effect on the functional condi-
tion of the central nervous system. Here changes in its activity were revealed
in the beginning of the trip with microclimate parameters in the car close to
the hygienic standards, when there were still no significant shifts on the part
of other studied functions. Such a nature of functional changes can be ex-
plained by the reaction of the organism to the unusual situation as compared to
daily life. This viewpoint is confirmed also by the fact that on the second
day of the trip with considerably worse microclimate parameters in the car the
rate of processing information on the visual analyzer rose as canpared to that
established in the previous study. Changes in the physical performance capacity
t
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Ff•
	
• Y •V
accurding to the data of the PM-170 test, and pulse rate were primarily due
to the microcli.niate parameters in the car.
Based on the conducted studies one can draw the conclusion, that the trans-
portation conditions impair the functional condition of the passenger's orga-
nism. Here the situation and the microclimate parameters in the car have an
influence. The restoration of the functional state to the initial level occurs
mainly in the space of one day. It is also necessary to take into consideration
the adaptation of the organism during transfer to another climate zone.
REFERENCES
1. Genkin, A. A.; Medvedev, V. I.; and Shek, M. P. Vopr. psil:hol., No 1 (1963),
p 104-110.
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Physiological reactions of a passenger to transportation conditions

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