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Wearing body armour and backpack loads increases the likelihood of expiratory flow limitation and respiratory muscle fatigue during marching

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@article{81e444aca7b24c6b8f1428e38a23bd2f,
title = "Wearing body armour and backpack loads increases the likelihood of expiratory flow limitation and respiratory muscle fatigue during marching",
abstract = "The effect of load carriage on pulmonary function was investigated during a treadmill march of increasing intensity. 24 male infantry soldiers marched on six occasions wearing either: no load, 15 kg, 30 kg, 40 kg or 50 kg. Each loaded configuration included body armour which was worn as battle-fit or loose-fit (40 kg only). FVC and FEV1 were reduced by 6% to 15% with load. Maximal mouth pressures were reduced post load carriage by up to 11% (inspiratory) and 17% (expiratory). Increased ventilatory demands associated with increased mass were met by increases in breathing frequency (from 3 to 26 breaths.min-1) with minimal changes to tidal volume. 72% of participants experienced expiratory flow limitation whilst wearing the heaviest load. Loosening the armour had minimal effects on pulmonary function. It was concluded that as mass and exercise intensity are increased, the degree of expiratory flow limitation also increases. ",
keywords = "load carriage, pulmonary function, operating lung volumes, fit",
author = "Nicola Armstrong and Ward, {Amanda-Jane Louise} and Mitch Lomax and Mike Tipton and House, {James R.}",
year = "2019",
month = sep,
day = "1",
doi = "10.1080/00140139.2019.1629638",
language = "English",
volume = "62",
pages = "1181--1192",
journal = "Ergonomics",
issn = "0014-0139",
publisher = "Taylor and Francis Ltd.",
number = "9",

}

RIS

TY - JOUR

T1 - Wearing body armour and backpack loads increases the likelihood of expiratory flow limitation and respiratory muscle fatigue during marching

AU - Armstrong, Nicola

AU - Ward, Amanda-Jane Louise

AU - Lomax, Mitch

AU - Tipton, Mike

AU - House, James R.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - The effect of load carriage on pulmonary function was investigated during a treadmill march of increasing intensity. 24 male infantry soldiers marched on six occasions wearing either: no load, 15 kg, 30 kg, 40 kg or 50 kg. Each loaded configuration included body armour which was worn as battle-fit or loose-fit (40 kg only). FVC and FEV1 were reduced by 6% to 15% with load. Maximal mouth pressures were reduced post load carriage by up to 11% (inspiratory) and 17% (expiratory). Increased ventilatory demands associated with increased mass were met by increases in breathing frequency (from 3 to 26 breaths.min-1) with minimal changes to tidal volume. 72% of participants experienced expiratory flow limitation whilst wearing the heaviest load. Loosening the armour had minimal effects on pulmonary function. It was concluded that as mass and exercise intensity are increased, the degree of expiratory flow limitation also increases.

AB - The effect of load carriage on pulmonary function was investigated during a treadmill march of increasing intensity. 24 male infantry soldiers marched on six occasions wearing either: no load, 15 kg, 30 kg, 40 kg or 50 kg. Each loaded configuration included body armour which was worn as battle-fit or loose-fit (40 kg only). FVC and FEV1 were reduced by 6% to 15% with load. Maximal mouth pressures were reduced post load carriage by up to 11% (inspiratory) and 17% (expiratory). Increased ventilatory demands associated with increased mass were met by increases in breathing frequency (from 3 to 26 breaths.min-1) with minimal changes to tidal volume. 72% of participants experienced expiratory flow limitation whilst wearing the heaviest load. Loosening the armour had minimal effects on pulmonary function. It was concluded that as mass and exercise intensity are increased, the degree of expiratory flow limitation also increases.

KW - load carriage

KW - pulmonary function

KW - operating lung volumes

KW - fit

U2 - 10.1080/00140139.2019.1629638

DO - 10.1080/00140139.2019.1629638

M3 - Article

VL - 62

SP - 1181

EP - 1192

JO - Ergonomics

JF - Ergonomics

SN - 0014-0139

IS - 9

ER -

ID: 14720912