ABSTRACT
The physical work capacity is studied in representatives of 3 professions with decreased motor activity and neuropsychic stress: managers in industry (20), railway controllers (41) and machine-builders (107). The dependence of the physical work capacity on the age, type of work, physical activity during free time, and other biometric and individual characteristics on the examined persons were studied. The physical working capacity was measured in standard laboratory conditions by bicycle ergometer [correction of veloergometer] Lano at submaximal rates of loading 50, 100 and 150 watt with duration 2 min each and velocity of pedalling 60 r/min. The maximal working capacity (MWC) was measured directly by continuous loading increase to refusal. The results pointed out ineffective reaction of the cardiovascular system at dosage of physical effort (increase of the "normative" values of the pulse rate for respective loading with 5 to 15 beats/min with all examined groups). The aerobic capacity level is under the average, as most unfavourable are its values in the managers from the industry, followed by the railway controllers and machine-builders. Hypodynamic during work, combined with low physical activity during free time, are basic risk factors for the maximal working capacity and the cardio-vascular system. There is a dependence of the aerobic capacity on some individual characteristics (age, body weight, pulse frequency and blood pressure at rest, etc.).
Subject(s)
Motor Activity , Occupations , Stress, Psychological/diagnosis , Work Capacity Evaluation , Adult , Bulgaria/epidemiology , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/epidemiology , Engineering , Humans , Industry , Middle Aged , Railroads , Risk Factors , Stress, Psychological/epidemiologyABSTRACT
Subject of the study are the two up-to-date professions with well expressed neuropsychic stress and hypodynamia: 19 managers from industry and 41 controllers from the railway transport. Both professional groups were subject to a definite dose of physical loading and estimation of the ECG changes by the aid of Minnesota's code (WHO 1968) and its modification by the Swedish Cardiological Association. Relatively high percents of positive working samples for healthy middle-aged men were found, which could be related with considerable occupational risk in both professions.
Subject(s)
Administrative Personnel , Coronary Disease/diagnosis , Industry , Occupational Diseases/diagnosis , Psychophysiologic Disorders/diagnosis , Railroads , Stress, Psychological/complications , Adult , Bulgaria , Coronary Disease/etiology , Coronary Disease/psychology , Electrocardiography , Exercise Test , Humans , Middle Aged , Occupational Diseases/etiology , Occupational Diseases/psychology , Psychophysiologic Disorders/etiologySubject(s)
Graves Disease/pathology , Leg Dermatoses/pathology , Myxedema/pathology , Thyroid Neoplasms/pathology , Aged , Carcinoma/pathology , Female , Humans , Male , Middle AgedABSTRACT
A case is reported of a patient, aged 20, with idiopathic hypoparathyroidism, manifested with the picture of epilepsy with a long treatment with antiepileptic remedies. Two years after the initiation of the antiepilertic treatment, severe skeleton disturbances occurred with manifested osteoporosis and multiple symmetric zones of bone reconstruction, hypocalcemia, hyperphosphatemia and elevated serum alkaline phosphatase. The disturbances of calcium and phosphorus level in blood are favourably affected by the application of relatively high vitamin D doses. The role of the long-term anticonvulsive treatment in the development of vitamin D resistant rickets and osteomalacia is discussed.
