12.5 FATIGUE SYMPTOMS
Some of the common fatigue symptoms are following:
● Weakness, lack of energy, tiredness, exhaustion
● Passing out or feeling as if you are going to pass out
● Palpitations (feeling your heart beating)
● Dizziness
● Vertigo is the feeling that you or your environment is moving or spinning. It differs from dizziness in that vertigo describes an illusion of movement. When you feel as if you yourself are moving, it’s called subjective vertigo, and the perception that your surroundings are moving is called objective vertigo.
● Shortness of breath
12.6 INDUSTRIAL STUDIES ON FATIGUE
United States Public Health Service conducted a study on 889 interstate truck drivers in three cities—Baltimore, Nashville and Chicago to find out the relationship between working hour and fatigue. This is one of the most valuable studies in the field of industrial psychology. The objectives of this study were:
● To determine if various period of truck driving would produce demonstrable and significant psycho physiological changes;
●To investigate the nature of these changes; and
●To discover whether a characteristic pattern of psycho physiological response occurs after long hours of driving.
The sixteen factors which were considered as contributing to fatigue in truck drivers were:
1. Performance of a skilled operation requiring a high degree of alertness and attention.
2. Nervous strain due to driving under adverse conditions.
3. Muscular exertion in loading and unloading and in the repair and maintenance of vehicles.
4. General irregularity of habit as a result of long distance hauls.
5. Failure to obtain satisfactory rest or sleep during rest periods or when off duty.
6 . Physical condition.
7. Constant use of the eyes, frequently under unfavourable conditions such as glare, etc.
8. Social factors in the environment or occupational tradition possibly promoted by enforced absence from home.
9. Monotony inducing sleepiness.
10. The consumption of coffee and alcohol.
11. Exposure to all types of weather conditions.
12. Exposure to toxic fumes and gases.
13. Economic insecurity, that is, fear of losing one’s job especially in the case of older men.
14. Noises
15. Vibration
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12.5 FATIGUE SYMPTOMSSome of the common fatigue symptoms are following:● Weakness, lack of energy, tiredness, exhaustion● Passing out or feeling as if you are going to pass out● Palpitations (feeling your heart beating)● Dizziness● Vertigo is the feeling that you or your environment is moving or spinning. It differs from dizziness in that vertigo describes an illusion of movement. When you feel as if you yourself are moving, it’s called subjective vertigo, and the perception that your surroundings are moving is called objective vertigo.● Shortness of breath 12.6 INDUSTRIAL STUDIES ON FATIGUEUnited States Public Health Service conducted a study on 889 interstate truck drivers in three cities—Baltimore, Nashville and Chicago to find out the relationship between working hour and fatigue. This is one of the most valuable studies in the field of industrial psychology. The objectives of this study were:● To determine if various period of truck driving would produce demonstrable and significant psycho physiological changes;●To investigate the nature of these changes; and●To discover whether a characteristic pattern of psycho physiological response occurs after long hours of driving.The sixteen factors which were considered as contributing to fatigue in truck drivers were:1. Performance of a skilled operation requiring a high degree of alertness and attention.2. Nervous strain due to driving under adverse conditions.3-العضلات مجهود في التحميل والتفريغ، وفي إصلاح وصيانة المركبات.4-العام مخالفة العادة نتيجة لضبط المسافات الطويلة.5-عدم الحصول على راحة مرضية أو النوم أثناء بقية فترات أو عند إيقاف الخدمة.6. الحالة المادية.7-استمرار استخدام العينين، وغالباً تحت ظروف غير مواتية مثل الوهج، إلخ.8-الاجتماعي العوامل في البيئة أو التقاليد المهنية ربما شجعت بالغياب القسري من المنزل.9-الرتابة الذي يحفز النعاس.10-استهلاك القهوة والكحول.11-التعرض لجميع أنواع الظروف الجوية.12-التعرض للأبخرة السامة والغازات.13-انعدام الأمن الاقتصادي، هو الخوف من فقدان وظيفة واحدة خاصة في حالة كبار السن من الرجال.14-ضجيج15-الاهتزاز
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