Metabolic rate and muscle activation level when wearing state-of-the-art cold-weather protective clothing during level and inclined walking.

Autor: Renberg J; SINTEF Digital, Department of Health Research, P.O. Box 4760, Torgarden, N-7465, Trondheim, Norway; Norwegian University of Science and Technology, Department of Biology, NTNU, Faculty of Natural Sciences, NO-7491, Trondheim, Norway. Electronic address: julie.renberg@sintef.no., Christiansen MT; Norwegian University of Science and Technology, Department of Biology, NTNU, Faculty of Natural Sciences, NO-7491, Trondheim, Norway. Electronic address: maren.t.christiansen@hotmail.com., Wiggen ØN; SINTEF Digital, Department of Health Research, P.O. Box 4760, Torgarden, N-7465, Trondheim, Norway. Electronic address: oystein.wiggen@sintef.no., Roeleveld K; Norwegian University of Science and Technology, Department of Neuromedicine and Movement Science, NTNU, Faculty of Medicine and Heath Sciences, NO-7491, Trondheim, Norway. Electronic address: karin.roeleveld@ntnu.no., Bardal EM; Norwegian University of Science and Technology, Department of Neuromedicine and Movement Science, NTNU, Faculty of Medicine and Heath Sciences, NO-7491, Trondheim, Norway. Electronic address: ellen.bardal@ntnu.no., Reinertsen RE; SINTEF Digital, Department of Health Research, P.O. Box 4760, Torgarden, N-7465, Trondheim, Norway; Norwegian University of Science and Technology, Department of Biology, NTNU, Faculty of Natural Sciences, NO-7491, Trondheim, Norway. Electronic address: randi.e.reinertsen@sintef.no.
Jazyk: angličtina
Zdroj: Applied ergonomics [Appl Ergon] 2020 Jan; Vol. 82, pp. 102956. Date of Electronic Publication: 2019 Sep 19.
DOI: 10.1016/j.apergo.2019.102956
Abstrakt: Use of cold-weather personal protective clothing (PPC) in cold climates is essential but can add metabolic cost to the wearer. This study measured the effect of wearing state-of-the-art PPC and personal protective equipment (PPE), with the possible effect of clothing layers and fit, on physiological responses including metabolic rate (MR) and muscle activation level. 19 male participants (80.2 ± 5.9 kg, 181.5 ± 5.1 cm) wore five different clothing ensembles during level (0°) and inclined (6°) walking. Compared to a base layer ensemble (388.7 ± 42.7 W/737.8 ± 57.9 W), wearing a 3-layer PPC ensemble (421.5 ± 44.7 W/811.7 ± 69.2 W) significantly increased MR, and adding PPE (458.3 ± 59.8 W/864.5 ± 71.2 W) further increased MR during level/inclined walking. Independent of the extra weight, adding a middle layer between base layer and outer clothing significantly increased MR during inclined walking only, and no effect of oversized outer clothing was measured.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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