Influence of fatigue and load carriage on mechanical loading during walking
Load carriage and muscular fatigue are two major stressors experienced by military recruits during basic training. The purpose of this study was to assess the influences of load carriage and muscular fatigue on ground reaction forces and ground reaction loading rates during walking. Eighteen healthy...
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| Veröffentlicht in: | Military medicine 2012-02, Vol.177 (2), p.152-156 |
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| creator | Wang, He Frame, Jeff Ozimek, Elicia Leib, Daniel Dugan, Eric L |
| description | Load carriage and muscular fatigue are two major stressors experienced by military recruits during basic training. The purpose of this study was to assess the influences of load carriage and muscular fatigue on ground reaction forces and ground reaction loading rates during walking. Eighteen healthy males performed the following tasks in order: unloaded and unfatigued walking, loaded and unfatigued walking, fatiguing exercise, loaded and fatigued walking, and unloaded and fatigued walking. The fatiguing exercise consisted of a series of metered step-ups and heel raises with a 16-kg rucksack. Loaded walking tasks were performed with a 32-kg rucksack. Two-way repeated measures analysis of variances were used to determine the effects of fatigue and load carriage on ground reaction forces and loading rates. Muscular fatigue has a significant influence on peak vertical ground reaction force and loading rate (p < 0.01). Load carriage has a significant influence on peak ground reaction forces and loading rates (p < 0.001). As both muscular fatigue and load carriage lead to large increases of ground reaction forces and loading rates, the high incidence of lower extremity overuse injuries in the military may be associated with muscular fatigue and load carriage. |
| doi_str_mv | 10.7205/MILMED-D-11-00210 |
| format | Article |
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The purpose of this study was to assess the influences of load carriage and muscular fatigue on ground reaction forces and ground reaction loading rates during walking. Eighteen healthy males performed the following tasks in order: unloaded and unfatigued walking, loaded and unfatigued walking, fatiguing exercise, loaded and fatigued walking, and unloaded and fatigued walking. The fatiguing exercise consisted of a series of metered step-ups and heel raises with a 16-kg rucksack. Loaded walking tasks were performed with a 32-kg rucksack. Two-way repeated measures analysis of variances were used to determine the effects of fatigue and load carriage on ground reaction forces and loading rates. Muscular fatigue has a significant influence on peak vertical ground reaction force and loading rate (p < 0.01). Load carriage has a significant influence on peak ground reaction forces and loading rates (p < 0.001). As both muscular fatigue and load carriage lead to large increases of ground reaction forces and loading rates, the high incidence of lower extremity overuse injuries in the military may be associated with muscular fatigue and load carriage.</description><identifier>ISSN: 0026-4075</identifier><identifier>EISSN: 1930-613X</identifier><identifier>DOI: 10.7205/MILMED-D-11-00210</identifier><identifier>PMID: 22360059</identifier><language>eng</language><publisher>England: Oxford University Press</publisher><subject>Analysis of Variance ; Biomechanical Phenomena ; Fractures ; Humans ; Influence ; Injuries ; Male ; Maximum oxygen consumption ; Military Personnel ; Muscle Fatigue - physiology ; Onsite ; Physical Endurance - physiology ; Physical Exertion - physiology ; Running ; Walking ; Walking - physiology ; Weight-Bearing - physiology ; Workload ; Young Adult</subject><ispartof>Military medicine, 2012-02, Vol.177 (2), p.152-156</ispartof><rights>Copyright Association of Military Surgeons of the United States Feb 2012</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c371t-4463314c63bf44a9265b1b7afcbd1aecd409d940e5fc2c4990814a2a3d87802f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22360059$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, He</creatorcontrib><creatorcontrib>Frame, Jeff</creatorcontrib><creatorcontrib>Ozimek, Elicia</creatorcontrib><creatorcontrib>Leib, Daniel</creatorcontrib><creatorcontrib>Dugan, Eric L</creatorcontrib><title>Influence of fatigue and load carriage on mechanical loading during walking</title><title>Military medicine</title><addtitle>Mil Med</addtitle><description>Load carriage and muscular fatigue are two major stressors experienced by military recruits during basic training. The purpose of this study was to assess the influences of load carriage and muscular fatigue on ground reaction forces and ground reaction loading rates during walking. Eighteen healthy males performed the following tasks in order: unloaded and unfatigued walking, loaded and unfatigued walking, fatiguing exercise, loaded and fatigued walking, and unloaded and fatigued walking. The fatiguing exercise consisted of a series of metered step-ups and heel raises with a 16-kg rucksack. Loaded walking tasks were performed with a 32-kg rucksack. Two-way repeated measures analysis of variances were used to determine the effects of fatigue and load carriage on ground reaction forces and loading rates. Muscular fatigue has a significant influence on peak vertical ground reaction force and loading rate (p < 0.01). Load carriage has a significant influence on peak ground reaction forces and loading rates (p < 0.001). As both muscular fatigue and load carriage lead to large increases of ground reaction forces and loading rates, the high incidence of lower extremity overuse injuries in the military may be associated with muscular fatigue and load carriage.</description><subject>Analysis of Variance</subject><subject>Biomechanical Phenomena</subject><subject>Fractures</subject><subject>Humans</subject><subject>Influence</subject><subject>Injuries</subject><subject>Male</subject><subject>Maximum oxygen consumption</subject><subject>Military Personnel</subject><subject>Muscle Fatigue - physiology</subject><subject>Onsite</subject><subject>Physical Endurance - physiology</subject><subject>Physical Exertion - physiology</subject><subject>Running</subject><subject>Walking</subject><subject>Walking - physiology</subject><subject>Weight-Bearing - physiology</subject><subject>Workload</subject><subject>Young Adult</subject><issn>0026-4075</issn><issn>1930-613X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpdkEtPwzAQhC0EouXxA7igSBw4BXZtJ46PqC1Q0YoLSNwsx7FLSh7FboT496QPOHAaaeeb0WoIuUC4ERSS2_l0Np-M43GMGANQhAMyRMkgTpG9HZJhf0tjDiIZkJMQlgDIZYbHZEApSwESOSRP08ZVnW2MjVoXOb0uF52NdFNEVauLyGjvS73ozSaqrXnXTWl0tfXKZhEVnd_Il64-ej0jR05XwZ7v9ZS83k9eRo_x7PlhOrqbxYYJXMecp4whNynLHeda0jTJMRfambxAbU3BQRaSg02coYZLCRlyTTUrMpEBdeyUXO96V7797GxYq7oMxlaVbmzbBSUpS0TKhOjJq3_ksu180z-nEAB4IiDLegp3lPFtCN46tfJlrf13D6nN0Go3tBorRLUdus9c7pu7vLbFX-J3WfYDmgl4HA</recordid><startdate>20120201</startdate><enddate>20120201</enddate><creator>Wang, He</creator><creator>Frame, Jeff</creator><creator>Ozimek, Elicia</creator><creator>Leib, Daniel</creator><creator>Dugan, Eric L</creator><general>Oxford University Press</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>4T-</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88F</scope><scope>88G</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9-</scope><scope>K9.</scope><scope>KB0</scope><scope>M0R</scope><scope>M0S</scope><scope>M1P</scope><scope>M1Q</scope><scope>M2M</scope><scope>M2P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PSYQQ</scope><scope>Q9U</scope><scope>S0X</scope><scope>7X8</scope></search><sort><creationdate>20120201</creationdate><title>Influence of fatigue and load carriage on mechanical loading during walking</title><author>Wang, He ; Frame, Jeff ; Ozimek, Elicia ; Leib, Daniel ; Dugan, Eric L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c371t-4463314c63bf44a9265b1b7afcbd1aecd409d940e5fc2c4990814a2a3d87802f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Analysis of Variance</topic><topic>Biomechanical Phenomena</topic><topic>Fractures</topic><topic>Humans</topic><topic>Influence</topic><topic>Injuries</topic><topic>Male</topic><topic>Maximum oxygen consumption</topic><topic>Military Personnel</topic><topic>Muscle Fatigue - physiology</topic><topic>Onsite</topic><topic>Physical Endurance - physiology</topic><topic>Physical Exertion - physiology</topic><topic>Running</topic><topic>Walking</topic><topic>Walking - physiology</topic><topic>Weight-Bearing - physiology</topic><topic>Workload</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, He</creatorcontrib><creatorcontrib>Frame, Jeff</creatorcontrib><creatorcontrib>Ozimek, Elicia</creatorcontrib><creatorcontrib>Leib, Daniel</creatorcontrib><creatorcontrib>Dugan, Eric L</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>Nursing & Allied Health Database</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Military Database (Alumni Edition)</collection><collection>Psychology Database (Alumni)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>eLibrary</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Consumer Health Database (Alumni Edition)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Consumer Health Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Military Database</collection><collection>Psychology Database</collection><collection>Science Database</collection><collection>Nursing & Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest One Psychology</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><collection>MEDLINE - Academic</collection><jtitle>Military medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, He</au><au>Frame, Jeff</au><au>Ozimek, Elicia</au><au>Leib, Daniel</au><au>Dugan, Eric L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of fatigue and load carriage on mechanical loading during walking</atitle><jtitle>Military medicine</jtitle><addtitle>Mil Med</addtitle><date>2012-02-01</date><risdate>2012</risdate><volume>177</volume><issue>2</issue><spage>152</spage><epage>156</epage><pages>152-156</pages><issn>0026-4075</issn><eissn>1930-613X</eissn><abstract>Load carriage and muscular fatigue are two major stressors experienced by military recruits during basic training. The purpose of this study was to assess the influences of load carriage and muscular fatigue on ground reaction forces and ground reaction loading rates during walking. Eighteen healthy males performed the following tasks in order: unloaded and unfatigued walking, loaded and unfatigued walking, fatiguing exercise, loaded and fatigued walking, and unloaded and fatigued walking. The fatiguing exercise consisted of a series of metered step-ups and heel raises with a 16-kg rucksack. Loaded walking tasks were performed with a 32-kg rucksack. Two-way repeated measures analysis of variances were used to determine the effects of fatigue and load carriage on ground reaction forces and loading rates. Muscular fatigue has a significant influence on peak vertical ground reaction force and loading rate (p < 0.01). Load carriage has a significant influence on peak ground reaction forces and loading rates (p < 0.001). As both muscular fatigue and load carriage lead to large increases of ground reaction forces and loading rates, the high incidence of lower extremity overuse injuries in the military may be associated with muscular fatigue and load carriage.</abstract><cop>England</cop><pub>Oxford University Press</pub><pmid>22360059</pmid><doi>10.7205/MILMED-D-11-00210</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals |
| subjects | Analysis of Variance Biomechanical Phenomena Fractures Humans Influence Injuries Male Maximum oxygen consumption Military Personnel Muscle Fatigue - physiology Onsite Physical Endurance - physiology Physical Exertion - physiology Running Walking Walking - physiology Weight-Bearing - physiology Workload Young Adult |
| title | Influence of fatigue and load carriage on mechanical loading during walking |
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