The effect of equalizing landing task demands on sex differences in lower extremity energy absorption
Abstract Background Less lean mass and strength may result in greater relative task demands on females compared to males when landing from a standardized height and could explain sex differences in energy absorption strategies. We compared the magnitude of sex differences in energy absorption when t...
Gespeichert in:
Veröffentlicht in: | Clinical biomechanics (Bristol) 2014-08, Vol.29 (7), p.760-766 |
---|---|
Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 766 |
---|---|
container_issue | 7 |
container_start_page | 760 |
container_title | Clinical biomechanics (Bristol) |
container_volume | 29 |
creator | Montgomery, Melissa M Shultz, Sandra J Schmitz, Randy J |
description | Abstract Background Less lean mass and strength may result in greater relative task demands on females compared to males when landing from a standardized height and could explain sex differences in energy absorption strategies. We compared the magnitude of sex differences in energy absorption when task demands were equalized relative to the amount of lower extremity lean mass available to dissipate kinetic energy upon landing. Methods Male–female pairs (n = 35) were assessed for lower extremity lean mass with dual-energy X-ray absorptiometry. Relative task demands were calculated when landing from a standardized height. Based on the difference in lower extremity lean mass within each pair, task demands were equalized by increasing the drop height for males. Joint energetics were measured while landing from the two heights. Multivariate repeated measures ANOVAs compared the magnitude of sex differences in joint energetics between conditions. Findings The multivariate test for absolute energy absorption was significant ( P < 0.01). The magnitude of sex difference in energy absorption was greater at the hip and knee (both P < 0.01), but not the ankle ( P = 0.43) during the equalized condition compared to the standardized and exaggerated conditions (all P < 0.01). There was no difference in the magnitude of sex differences between equalized, standardized and exaggerated conditions for relative energy absorption ( P = 0.18). Interpretation Equalizing task demands increased the difference in absolute hip and knee energy absorption between sexes, but had no effect on relative joint contributions to total energy absorption. Sex differences in energy absorption are likely influenced by factors other than differences in relative task demands. |
doi_str_mv | 10.1016/j.clinbiomech.2014.06.004 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1561033494</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>1_s2_0_S0268003314001351</els_id><sourcerecordid>1561033494</sourcerecordid><originalsourceid>FETCH-LOGICAL-c572t-90951fc767e764f106b688818052128eb545113133514fe01d2a6eb02c99bc213</originalsourceid><addsrcrecordid>eNqNkcFu1DAQhi0EotuWV0DmxiVhxnGc-IKEVkCRKvVAe7YSZ9J6m8RbO4EuT4-jLQhx6mk00vfPaL5h7B1CjoDqwy63g5ta50eyd7kAlDmoHEC-YBusK52hqPAl24BQdQZQFCfsNMYdJEKU1Wt2IqTWtQa5YXR9R5z6nuzMfc_pYWkG98tNt3xopm6tcxPveUdjaiP3E4_0yDuXEoEmS5G7iQ_-JwVOj3Og0c0HThOF2wNv2ujDfnZ-Omev-maI9OapnrGbL5-vtxfZ5dXXb9tPl5ktKzFnGnSJva1URZWSPYJqVV3XWEMpUNTUlrJELLAoSpQ9AXaiUdSCsFq3VmBxxt4f5-6Df1gozmZ00dKQbiG_RIOlwqRDaplQfURt8DEG6s0-uLEJB4NgVstmZ_6xbFbLBpRJDlP27dOapR2p-5v8ozUB2yNA6dgfjoKJ1q26OheSadN596w1H_-bspLONsM9HSju_BKmZNOgicKA-b6-e_02SgBMiorfq_molQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1561033494</pqid></control><display><type>article</type><title>The effect of equalizing landing task demands on sex differences in lower extremity energy absorption</title><source>MEDLINE</source><source>Elsevier ScienceDirect Journals Complete</source><creator>Montgomery, Melissa M ; Shultz, Sandra J ; Schmitz, Randy J</creator><creatorcontrib>Montgomery, Melissa M ; Shultz, Sandra J ; Schmitz, Randy J</creatorcontrib><description>Abstract Background Less lean mass and strength may result in greater relative task demands on females compared to males when landing from a standardized height and could explain sex differences in energy absorption strategies. We compared the magnitude of sex differences in energy absorption when task demands were equalized relative to the amount of lower extremity lean mass available to dissipate kinetic energy upon landing. Methods Male–female pairs (n = 35) were assessed for lower extremity lean mass with dual-energy X-ray absorptiometry. Relative task demands were calculated when landing from a standardized height. Based on the difference in lower extremity lean mass within each pair, task demands were equalized by increasing the drop height for males. Joint energetics were measured while landing from the two heights. Multivariate repeated measures ANOVAs compared the magnitude of sex differences in joint energetics between conditions. Findings The multivariate test for absolute energy absorption was significant ( P < 0.01). The magnitude of sex difference in energy absorption was greater at the hip and knee (both P < 0.01), but not the ankle ( P = 0.43) during the equalized condition compared to the standardized and exaggerated conditions (all P < 0.01). There was no difference in the magnitude of sex differences between equalized, standardized and exaggerated conditions for relative energy absorption ( P = 0.18). Interpretation Equalizing task demands increased the difference in absolute hip and knee energy absorption between sexes, but had no effect on relative joint contributions to total energy absorption. Sex differences in energy absorption are likely influenced by factors other than differences in relative task demands.</description><identifier>ISSN: 0268-0033</identifier><identifier>EISSN: 1879-1271</identifier><identifier>DOI: 10.1016/j.clinbiomech.2014.06.004</identifier><identifier>PMID: 24998904</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Absorptiometry, Photon ; ACL injury ; Adult ; Ankle Joint - physiology ; Athletes ; Biomechanical Phenomena ; Body Composition ; Energy absorption ; Female ; Humans ; Knee - physiology ; Knee Joint - physiology ; Landing ; Lean mass ; Lower Extremity - physiology ; Male ; Multivariate Analysis ; Physical Medicine and Rehabilitation ; Sex Factors ; Young Adult</subject><ispartof>Clinical biomechanics (Bristol), 2014-08, Vol.29 (7), p.760-766</ispartof><rights>Elsevier Ltd</rights><rights>2014 Elsevier Ltd</rights><rights>Copyright © 2014 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c572t-90951fc767e764f106b688818052128eb545113133514fe01d2a6eb02c99bc213</citedby><cites>FETCH-LOGICAL-c572t-90951fc767e764f106b688818052128eb545113133514fe01d2a6eb02c99bc213</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.clinbiomech.2014.06.004$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24998904$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Montgomery, Melissa M</creatorcontrib><creatorcontrib>Shultz, Sandra J</creatorcontrib><creatorcontrib>Schmitz, Randy J</creatorcontrib><title>The effect of equalizing landing task demands on sex differences in lower extremity energy absorption</title><title>Clinical biomechanics (Bristol)</title><addtitle>Clin Biomech (Bristol, Avon)</addtitle><description>Abstract Background Less lean mass and strength may result in greater relative task demands on females compared to males when landing from a standardized height and could explain sex differences in energy absorption strategies. We compared the magnitude of sex differences in energy absorption when task demands were equalized relative to the amount of lower extremity lean mass available to dissipate kinetic energy upon landing. Methods Male–female pairs (n = 35) were assessed for lower extremity lean mass with dual-energy X-ray absorptiometry. Relative task demands were calculated when landing from a standardized height. Based on the difference in lower extremity lean mass within each pair, task demands were equalized by increasing the drop height for males. Joint energetics were measured while landing from the two heights. Multivariate repeated measures ANOVAs compared the magnitude of sex differences in joint energetics between conditions. Findings The multivariate test for absolute energy absorption was significant ( P < 0.01). The magnitude of sex difference in energy absorption was greater at the hip and knee (both P < 0.01), but not the ankle ( P = 0.43) during the equalized condition compared to the standardized and exaggerated conditions (all P < 0.01). There was no difference in the magnitude of sex differences between equalized, standardized and exaggerated conditions for relative energy absorption ( P = 0.18). Interpretation Equalizing task demands increased the difference in absolute hip and knee energy absorption between sexes, but had no effect on relative joint contributions to total energy absorption. Sex differences in energy absorption are likely influenced by factors other than differences in relative task demands.</description><subject>Absorptiometry, Photon</subject><subject>ACL injury</subject><subject>Adult</subject><subject>Ankle Joint - physiology</subject><subject>Athletes</subject><subject>Biomechanical Phenomena</subject><subject>Body Composition</subject><subject>Energy absorption</subject><subject>Female</subject><subject>Humans</subject><subject>Knee - physiology</subject><subject>Knee Joint - physiology</subject><subject>Landing</subject><subject>Lean mass</subject><subject>Lower Extremity - physiology</subject><subject>Male</subject><subject>Multivariate Analysis</subject><subject>Physical Medicine and Rehabilitation</subject><subject>Sex Factors</subject><subject>Young Adult</subject><issn>0268-0033</issn><issn>1879-1271</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkcFu1DAQhi0EotuWV0DmxiVhxnGc-IKEVkCRKvVAe7YSZ9J6m8RbO4EuT4-jLQhx6mk00vfPaL5h7B1CjoDqwy63g5ta50eyd7kAlDmoHEC-YBusK52hqPAl24BQdQZQFCfsNMYdJEKU1Wt2IqTWtQa5YXR9R5z6nuzMfc_pYWkG98tNt3xopm6tcxPveUdjaiP3E4_0yDuXEoEmS5G7iQ_-JwVOj3Og0c0HThOF2wNv2ujDfnZ-Omev-maI9OapnrGbL5-vtxfZ5dXXb9tPl5ktKzFnGnSJva1URZWSPYJqVV3XWEMpUNTUlrJELLAoSpQ9AXaiUdSCsFq3VmBxxt4f5-6Df1gozmZ00dKQbiG_RIOlwqRDaplQfURt8DEG6s0-uLEJB4NgVstmZ_6xbFbLBpRJDlP27dOapR2p-5v8ozUB2yNA6dgfjoKJ1q26OheSadN596w1H_-bspLONsM9HSju_BKmZNOgicKA-b6-e_02SgBMiorfq_molQ</recordid><startdate>20140801</startdate><enddate>20140801</enddate><creator>Montgomery, Melissa M</creator><creator>Shultz, Sandra J</creator><creator>Schmitz, Randy J</creator><general>Elsevier Ltd</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>7X8</scope></search><sort><creationdate>20140801</creationdate><title>The effect of equalizing landing task demands on sex differences in lower extremity energy absorption</title><author>Montgomery, Melissa M ; Shultz, Sandra J ; Schmitz, Randy J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c572t-90951fc767e764f106b688818052128eb545113133514fe01d2a6eb02c99bc213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Absorptiometry, Photon</topic><topic>ACL injury</topic><topic>Adult</topic><topic>Ankle Joint - physiology</topic><topic>Athletes</topic><topic>Biomechanical Phenomena</topic><topic>Body Composition</topic><topic>Energy absorption</topic><topic>Female</topic><topic>Humans</topic><topic>Knee - physiology</topic><topic>Knee Joint - physiology</topic><topic>Landing</topic><topic>Lean mass</topic><topic>Lower Extremity - physiology</topic><topic>Male</topic><topic>Multivariate Analysis</topic><topic>Physical Medicine and Rehabilitation</topic><topic>Sex Factors</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Montgomery, Melissa M</creatorcontrib><creatorcontrib>Shultz, Sandra J</creatorcontrib><creatorcontrib>Schmitz, Randy J</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical biomechanics (Bristol)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Montgomery, Melissa M</au><au>Shultz, Sandra J</au><au>Schmitz, Randy J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of equalizing landing task demands on sex differences in lower extremity energy absorption</atitle><jtitle>Clinical biomechanics (Bristol)</jtitle><addtitle>Clin Biomech (Bristol, Avon)</addtitle><date>2014-08-01</date><risdate>2014</risdate><volume>29</volume><issue>7</issue><spage>760</spage><epage>766</epage><pages>760-766</pages><issn>0268-0033</issn><eissn>1879-1271</eissn><abstract>Abstract Background Less lean mass and strength may result in greater relative task demands on females compared to males when landing from a standardized height and could explain sex differences in energy absorption strategies. We compared the magnitude of sex differences in energy absorption when task demands were equalized relative to the amount of lower extremity lean mass available to dissipate kinetic energy upon landing. Methods Male–female pairs (n = 35) were assessed for lower extremity lean mass with dual-energy X-ray absorptiometry. Relative task demands were calculated when landing from a standardized height. Based on the difference in lower extremity lean mass within each pair, task demands were equalized by increasing the drop height for males. Joint energetics were measured while landing from the two heights. Multivariate repeated measures ANOVAs compared the magnitude of sex differences in joint energetics between conditions. Findings The multivariate test for absolute energy absorption was significant ( P < 0.01). The magnitude of sex difference in energy absorption was greater at the hip and knee (both P < 0.01), but not the ankle ( P = 0.43) during the equalized condition compared to the standardized and exaggerated conditions (all P < 0.01). There was no difference in the magnitude of sex differences between equalized, standardized and exaggerated conditions for relative energy absorption ( P = 0.18). Interpretation Equalizing task demands increased the difference in absolute hip and knee energy absorption between sexes, but had no effect on relative joint contributions to total energy absorption. Sex differences in energy absorption are likely influenced by factors other than differences in relative task demands.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>24998904</pmid><doi>10.1016/j.clinbiomech.2014.06.004</doi><tpages>7</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0268-0033 |
ispartof | Clinical biomechanics (Bristol), 2014-08, Vol.29 (7), p.760-766 |
issn | 0268-0033 1879-1271 |
language | eng |
recordid | cdi_proquest_miscellaneous_1561033494 |
source | MEDLINE; Elsevier ScienceDirect Journals Complete |
subjects | Absorptiometry, Photon ACL injury Adult Ankle Joint - physiology Athletes Biomechanical Phenomena Body Composition Energy absorption Female Humans Knee - physiology Knee Joint - physiology Landing Lean mass Lower Extremity - physiology Male Multivariate Analysis Physical Medicine and Rehabilitation Sex Factors Young Adult |
title | The effect of equalizing landing task demands on sex differences in lower extremity energy absorption |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T12%3A11%3A43IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20effect%20of%20equalizing%20landing%20task%20demands%20on%20sex%20differences%20in%20lower%20extremity%20energy%20absorption&rft.jtitle=Clinical%20biomechanics%20(Bristol)&rft.au=Montgomery,%20Melissa%20M&rft.date=2014-08-01&rft.volume=29&rft.issue=7&rft.spage=760&rft.epage=766&rft.pages=760-766&rft.issn=0268-0033&rft.eissn=1879-1271&rft_id=info:doi/10.1016/j.clinbiomech.2014.06.004&rft_dat=%3Cproquest_cross%3E1561033494%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1561033494&rft_id=info:pmid/24998904&rft_els_id=1_s2_0_S0268003314001351&rfr_iscdi=true |