Abstract of Special Research Report (SRR-87)
National Institute of Occupational Safety and Health, Japan
Study on Preventing Occupational Accidents Due to Falling Construction Works for Elderly Workers
Introduction
SRR-87-1 |
Kinichi KINOSHITA |
: At present, the number of aged workers has been increasing year by year due to the rapid aging of population in Japan. The back ground that stimulates the increase of elderly workers can be explained in many ways such as aging of population, needs for maintaining daily life, etc.
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An Analysis of Occupational Accidents of Elderly Workers in Construction Industry
SRR-87-2 |
Hisao NAGATA, Yasuo TOYOSAWA and Tetsu YOSHIDA |
: The population aged over 55 is gradually increasing year by year in Japan. In the year of 2000, about one fourth of the total workers will be over the age of 55. Particularly in construction industry, the proportion of elderly workers is much more rapidly increasing than that in other industries. As aged population grows, the number of occupational accidents of elderly workers proportionally increases. |
Experimental Study on Critical Forces Causing Accidental Falls of Elderly Workers
SRR-87-3 |
Hisao NAGATA |
: According to the results of the analyses of occupational accidents, elderly workers are apt to fall on the surface. These accidents come mainly from the physical degeneracy of standing ability. In this report, it was aimed to research the critical forces causing accidental falls of elderly workers in various actual standing postures. |
Study on Simple Methods to Evaluate Human Balance of Field Workers
SRR-87-4 |
Hisao NAGATA |
: A stabilometry system is widely used in the field of neurology, orthopedics and athletics to register the excursions of the centre of gravity of the body in standing posture and to estimate human balance. But it needs expensive costs for setting up a measure-system including a computer, force plate, recorder, etc., and also needs special measuring skills to manage a stabilometer. Individual data of the gravity movements of human body obtained from a stabilometer, that is, electrogravitiograph (EGG) can be analyzed by highly mathematical techniques such as frequency analysis, etc., but results of analyses are characterized by the deviations coming from wide shifts of individual raw data. Therefore it is not always efficient to adopt the system as an expedient method to evaluate human balance of field workers because of complicated measuring technique, and its insufficient reliability not corresponding with economical costs of the system.
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On the Safety of Lifeline Employed in the Workers on the Sloped Roof
SRR-87-5 |
Katsunori OGAWA and Katsuya NAKAYASHIKI |
: Every year heavy casualties take place in construction industry. In particular, fall accidents represent about 40% of the fatality in construction industry. Among them, the wooden house construction sector has a higher accident frequency rate than the other construction sectors.
The results of the experiments are summarized as follows :
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