[How strongly does heavy work in the heat affect metabolism?].
The study covered 39 acclimatised workers of a ball-bearing forge, aged 39,03 +/- 9,95 years. Temperature of the air, relative humidity and air speed were measured immediately at work. Additionally electrocardiogram, heart rate and temperature of the skin were continuously transmitted by telemetry. Before and at the end of the shift analysis of blood pressure, heart rate, electrocardiogram, blood cells and coagulation, serum acidity and a great number of other metabolic parameters was performed. The netto calories were calculated as 3250 kcal/8 hours (= 13585 kJ/8 hours). Hematological analysis demonstrated a tendency to increase of leucocytes favouring neutrophil granulocytes. The main alterations comprised decrease of actual pH, base excess and standard bicarbonate. Furthermore serum lactate and triglycerides increased, creatinine attained the upper limit of the normal range, mineralogram remained unchanged by drinking ad libitum. The so called "liver enzymes" remained stable. As to circulatory parameters systolic blood pressure slightly declined whilst heart rate increased.
D000136:Acid-Base Equilibrium; D000328:Adult; D001786:Blood Glucose / Q000378:metabolism; D002784:Cholesterol / Q000097:blood; D003404:Creatinine / Q000097:blood; D006339:Heart Rate; D006358:Hot Temperature / Q000009:adverse effects*; D006801:Humans; D007958:Leukocyte Count; D008297:Male; D008660:Metabolism; D008669:Metallurgy; D008875:Middle Aged; D009787:Occupational Medicine; D012709:Serum Albumin / Q000378:metabolism; D012881:Skin Temperature; D014882:Water-Electrolyte Balance
D001786:Blood Glucose; D012709:Serum Albumin; D002784:Cholesterol; D003404:Creatinine
Wie stark belastet Hitze-Schwerarbeit den Stoffwechsel?