|Document ID (ISN)||78182|
|ISSN - Serial title
||1529-8663 - AIHA Journal
|Convention or series no.
||Caretti D.M., Scott W.H., Johnson A.T., Coyne K.M., Koh F.
||Work performance when breathing through different respirator exhalation resistances
||July-Aug. 2001, Vol.62, No.4, p.411-415. Illus. 15 ref.
||An evaluation of the performance in workers, exercising at a fixed workload and wearing full-face piece respirators, and modified to provide different expiratory resistances. Fifteen volunteers exercised on a treadmill at fixed speeds and grades. Performance time decreased linearly with increased resistances. Average oxygen consumption rates and minute ventilation also decreased, indicating that increases in expiratory resistance result in hypoventilation. This study suggests that the only practical expiratory resistance level limitation is the reduction in performance that will be acceptable to the workers.
||exhalation; work capacity; hypoventilation; breathing resistance; oxygen consumption monitoring; respirators; respiratory minute volume
||respiratory function tests
||D - Periodical articles
|Country / State or Province||USA|
||Ergonomics and work organization
|Broad subject area(s)
Diseases of the respiratory system (except for pneumoconiosis & similar)