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Physiologic effects of a self-contained self-rescuer
American Industrial Hygiene Association Journal
|May 1, 1983
Summary
New federal regulations require self-contained self-rescuers (SCSR) for coal miners. This study found SCSR use had minimal adverse effects on healthy individuals during submaximal exercise.
Area of Science:
- Occupational Health
- Respiratory Physiology
- Mining Safety Engineering
Background:
- Federal regulations now mandate self-contained self-rescuers (SCSR) for all underground coal miners.
- Understanding the physiological impact and potential limitations of SCSR use during physical exertion is crucial.
Purpose of the Study:
- To evaluate the physiological responses of healthy individuals to submaximal exercise while using an SCSR.
- To identify any adverse effects associated with SCSR use in a controlled exercise setting.
Main Methods:
- Ten healthy coal mine inspectors performed submaximal steady-state treadmill exercise.
- Physiological parameters were measured both with and without the SCSR in use.
Main Results:
- Oxygen saturation averaged 98.3% with SCSR versus 94.8% without.
- Mouth pressure swing increased to 15.6 cm H2O with SCSR compared to 10.4 cm H2O without.
- Respiratory rate decreased to 25/min with SCSR from 28/min without; blood pressure, core temperature, and heart rate remained unaffected.
Conclusions:
- The SCSR device demonstrated minimal adverse physiological effects in healthy individuals during submaximal exercise.
- Findings suggest SCSRs are likely safe for use by coal miners during moderate physical activity.