Heat stress - reduced job performance

In the human body, around 70% of muscular work is transformed into heat. Elevated temperature and protective clothing reinforces thermal stress. Concentration and performance suffer with negative impact on productivity for the company and on safety for the individual affected.

Hot workplaces, in which temperatures are significantly in excess of those in the above study, are especially affected. Reduced working performance and a threat to the safety of all involved individuals are possible consequences.

Impact on the body

Stress on the organism of those affected can be well above that of other workplaces. Thick protective clothing was shown to result in body temperatures over 39°C and hence lead to exhaustion after just 30 minutes of moderate physical work. In many cases there is also a high physical workload generating additional body heat. Depending on the physical demands of the work and the level of ambient temperature, critical body temperatures can be reached.

The heart's activity increases with rising ambient temperature. The heart rate steps up as a linear function of the human rectal temperature. Metabolic processes are also impaired.

Literature in the field of occupational medicine and studies dealing with heat stress at the workplace therefore emphasise the importance of effective body cooling systems, which have a physiological effect and effectively support and stimulate the body's own heat dissipation.

Do you know this problem?

Thermal stress on the body, fluid loss, exhaustion, lack of concentration, drop in performance, stress on the cardiovascular system.

Hot workplaces are often associated with an increased exposure on health. Body temperature rises, large amounts of fluids are lost. The cardiovascular system suffers along with many metabolic processes.