Abstract：
:The purpose of this study was to examine physical work performance, energy cost, and physiological fatigue in military personnel during simulated operational conditions. Using a within-subject, repeated-measures design, 34 military personnel volunteered to undergo two experimental conditions: with body armor (BA+) and without BA (BA-). Subjects walked on a treadmill for 30 minutes and completed a physical performance battery during each of two sessions, which were separated by > or = 5 days. Subjects with BA+ as compared with BA- had significantly greater increases in: oxygen uptake (VO2) at slow (16.8 +/- 1.5 vs. 18.8 +/- 1.7 mL x kg(-1) x min(-1)) and moderate paces (34.8 +/- 3.9 vs. 40.8 +/- 5.0 mL x kg(-1) x min(-1)); blood lactate at a moderate pace (4.0 +/- 2.4 vs. 6.7 +/- 2.6 mmol/L); heart rate at slow (107 +/- 14 vs. 118 +/- 16 beats per minute) and moderate paces (164 +/- 16 vs. 180 +/- 13 beats per minute); and ratings of perceived physical exertion at slow (8.4 +/- 1.5 vs. 10.4 +/- 1.8) and moderate paces (14.3 +/- 2.3 vs. 16.7 +/- 2.1). Physical tasks were significantly affected by BA: under BA+, men performed 61% fewer pull-ups and women's hang time was reduced by 63%; stair stepping was reduced by 16% for both men and women. BA significantly impacted the physical work capacity of militarily relevant tasks. Specifically, wearing BA significantly increased VO2 when walking at both slow and moderate paces. The potential for physical exhaustion is high and performance of physical tasks is markedly impaired when wearing BA.
journal_name
Mil Medjournal_title
Military medicineauthors
Ricciardi R,Deuster PA,Talbot LAdoi
10.7205/milmed.173.9.817subject
Has Abstractpub_date
2008-09-01 00:00:00pages
817-24issue
9eissn
0026-4075issn
1930-613Xjournal_volume
173pub_type
杂志文章abstract：:Wide use of a succession of different manufactured antimicrobial agents during the past 60 years has prompted the eventual emergence and progressive spread through the world's interconnecting bacterial populations of a growing variety of genes expressing resistance to those agents. The complex processes that spread an...
journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：2000-07-01 00:00:00
abstract：:The USNS Mercy (T-AH 19) is a unique environment for its staff and patients. Several environmental influences distinctively affect health, medical, and nursing care. Six main areas of environmental concern for operational nursing were examined. The strengths, weaknesses, opportunities, and threats to the internal envi...
journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
abstract：:Over the last 50 years, members of the U.S. military have faced the threat of malaria in diverse geographical locations and operational situations, resulting in considerable morbidity and mortality. However, because malaria may be transported out of endemic areas and into areas that are free of malaria, the threat doe...
journal_title：Military medicine
pub_type： 杂志文章
doi：10.7205/milmed.171.10.925
更新日期：2006-10-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.1093/milmed/usz435
更新日期：2020-06-08 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.1093/milmed/usz096
更新日期：2019-12-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：1995-08-01 00:00:00
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journal_title：Military medicine
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更新日期：2015-07-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
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更新日期：2018-03-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.7205/milmed.173.4.388
更新日期：2008-04-01 00:00:00
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journal_title：Military medicine
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更新日期：2016-11-01 00:00:00
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journal_title：Military medicine
pub_type： 历史文章,杂志文章
doi：10.7205/milmed.171.4.333
更新日期：2006-04-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.7205/milmed.170.9.760
更新日期：2005-09-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.1093/milmed/usaa402
更新日期：2020-11-19 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.1093/milmed/usaa069
更新日期：2020-09-18 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
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更新日期：2020-09-10 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.7205/MILMED-D-14-00229
更新日期：2015-09-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
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更新日期：2020-09-18 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：10.7205/milmed.173.supplement_1.29
更新日期：2008-01-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：1996-07-01 00:00:00
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更新日期：2015-04-01 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：1999-04-01 00:00:00
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更新日期：2017-03-01 00:00:00
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更新日期：2020-09-18 00:00:00
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journal_title：Military medicine
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更新日期：2020-03-02 00:00:00
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更新日期：2020-03-02 00:00:00
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journal_title：Military medicine
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
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journal_title：Military medicine
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更新日期：2018-09-01 00:00:00
