@article{ref1,
title="Changes in combat task performance under increasing loads in active duty marines",
journal="Military medicine",
year="2015",
author="Jaworski, Rebecca L. and Jensen, Andrew and Niederberger, Brenda and Congalton, Robert and Kelly, Karen R.",
volume="180",
number="3 Suppl",
pages="179-186",
abstract="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. <br><br>PURPOSE: The aim of this study was to determine the effects of load on performance of combat-related tasks. <br><br>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. <br><br>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. <br><br>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.<p /> <p>Language: en</p>",
language="en",
issn="0026-4075",
doi="10.7205/MILMED-D-14-00432",
url="http://dx.doi.org/10.7205/MILMED-D-14-00432"
}