Changes in combat task performance under increasing loads in active duty marines.
Unlabelled: U.S. Marines perform mission tasks under heavy loads which may compromise performance of combat tasks. However, data supporting this performance decrement are limited.Purpose: The aim of this study was to determine the effects of load on performance of combat-related tasks.Methods: Subje...
| Publicado en: | Military Medicine pp. 179 - 187 |
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| Autores principales: | , , , , |
| Formato: | research Journal Article |
| Publicado: |
Oxford University Press / USA
Mar2015 Supplement
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=109707738&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 109707738 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00264075 4DV jtl: Military Medicine issn: 00264075 maglogo: N pubinfo: dt: Mar2015 Supplement pid: 622 pub: Oxford University Press / USA artinfo: ui: 109707738 101474069 NLM25747650 2012929696 10.7205/MILMED-D-14-00432 NLM25747650 109707738 ppf: 179 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Changes in combat task performance under increasing loads in active duty marines. aug: au: Jaworski, Rebecca L Jensen, Andrew Niederberger, Brenda Congalton, Robert Kelly, Karen R sug: subj: Weight-Bearing Physiology Task Performance and Analysis Military Personnel Physical Fitness Physiology Fatigue Physiopathology United States Male Adult Human Validation Studies Comparative Studies Evaluation Research Multicenter Studies Adult: 19-44 years Male ab: Unlabelled: U.S. Marines perform mission tasks under heavy loads which may compromise performance of combat tasks. However, data supporting this performance decrement are limited.Purpose: The aim of this study was to determine the effects of load on performance of combat-related tasks.Methods: Subjects (N=18) ran a modified Maneuver Under Fire ([MANUF], 300 yards [yd] total: two 25-yd sprints, 25-yd crawl, 75-yd casualty drag, 150-yd ammunition can carry, and grenade toss) portion of the U.S. Marine Corps Combat Fitness Test under 4 trial conditions: neat (no load), 15%, 30%, and 45% of body weight, with a shooting task pre- and post-trial.Results: There was a significant increase in total time to completion as a function of load (p<0.0001) with a relationship between load and time (r=0.592, p<0.0001). Pre- to post-MANUF shot accuracy (p=0.005) and precision (p<0.0001) was reduced.Conclusion: Short aerobic performance is significantly impacted by increasing loads. Marksmanship is compromised as a function of fatigue and load. These data suggest that loads of 45% body weight increase time to cover distance and reduce the ability to precisely hit a target. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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