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MAP20071019781Cardiorespiratory strain during walking in snow with boots of differing weights / Juhani Smolander... [et al]Sumario: This paper hypothesized that during walking in snow the increase in physiological strain due to the extra weight of the safety boots may become critically high and reduce working efficiency. This occurrence in turn could lead to negligence in the use of safety boots in logging work which is mostly done on a piece-rate basis. Therefore, in the present study it compared the cardio-respiratory strain during walking in snow using three types of boots of differing weightsEn: Ergonomics. - London and Washington. - Vol. 32, nº 1, January 1989 ; p. 3-131. Ergonomía. 2. Fisiología. 3. Calzado de seguridad. 4. Ventilación pulmonar. 5. Frecuencia cardíaca. 6. Consumo de oxígeno. 7. Enfermedades profesionales. 8. Riesgo laboral. I. Smolander, Juhani. II. Title. III. Título: Ergonomics.