[How strongly does heavy work in the heat affect metabolism?]

Area of Science:

• Occupational Health
• Environmental Physiology
• Industrial Hygiene

Context:

• Workers in high-temperature industrial settings like ball-bearing forges face significant physiological stress.
• Understanding the impact of such environments on worker health is crucial for implementing effective safety measures.

Purpose:

• To assess the physiological and metabolic responses of acclimatized workers in a ball-bearing forge environment.
• To evaluate changes in hematological, metabolic, and circulatory parameters during an 8-hour work shift.

Summary:

• The study monitored 39 workers, measuring environmental factors and physiological data including electrocardiogram, heart rate, and skin temperature.
• Hematological analysis showed a tendency for increased leukocytes, particularly neutrophil granulocytes.
• Metabolic alterations included decreased blood pH, base excess, and standard bicarbonate, alongside increased serum lactate and triglycerides. Creatinine levels neared the upper limit of normal.
• Circulatory parameters indicated a slight decrease in systolic blood pressure and an increase in heart rate. Mineralogram remained stable due to ad libitum drinking, and liver enzymes were unchanged.

Impact:

• Provides critical data on the physiological strain experienced by workers in high-heat industrial environments.
• Highlights potential health risks associated with prolonged exposure to such conditions, informing occupational health guidelines.
• Suggests the need for targeted interventions to mitigate metabolic and circulatory stress in forge workers.