Do athletes with hamstring strain injury have shorter muscle fascicles in the injured limb?
Previous studies have suggested that a reduced length of the biceps femoris long head (BFlh) fascicles may increase the risk of hamstring strain injury (HSI). However, it remains unclear whether the BFlh fascicles of the injured limb are shorter than those of the contralateral limb in athletes with...
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| Veröffentlicht in: | Journal of bodywork and movement therapies 2024-04, Vol.38, p.269-273 |
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| container_title | Journal of bodywork and movement therapies |
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| creator | Medeiros, Diulian Muniz Lima-e-Silva, Felipe Xavier de Aimi, Mateus Vaz, Marco Aurélio Baroni, Bruno Manfredini |
| description | Previous studies have suggested that a reduced length of the biceps femoris long head (BFlh) fascicles may increase the risk of hamstring strain injury (HSI). However, it remains unclear whether the BFlh fascicles of the injured limb are shorter than those of the contralateral limb in athletes with an acute HSI.
To investigate the between-limb asymmetry of BFlh fascicle length in amateur athletes with an acute HSI.
Male amateur athletes were evaluated using ultrasound scans within five days following an HSI. The BFlh fascicle length was estimated using a validated equation.
Eighteen injured athletes participated in this study. There was no significant difference (p = 0.27) in the length of BFlh fascicles between the injured limb (9.53 ± 2.55 cm; 95%CI 8.26 to 10.80 cm) and the uninjured limb (10.54 ± 2.87 cm; 95%CI 9.11 to 11.97 cm). Individual analysis revealed high heterogeneity, with between-limb asymmetries (percentage difference of the injured limb compared to the uninjured limb) ranging from −42% to 25%. Nine out of the 18 athletes had a fascicle length that was more than 10% shorter in the injured limb compared to the uninjured limb, five athletes had a difference of less than 10%, and four athletes had a fascicle length that was more than 10% longer in the injured limb compared to the uninjured limb.
The architecture characteristics of injured and uninjured muscles is not consistent among athletes with HSI. Therefore, rehabilitation programs focused on fascicle lengthening should be evaluated on a case-by-case basis. |
| doi_str_mv | 10.1016/j.jbmt.2024.01.030 |
| format | Article |
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To investigate the between-limb asymmetry of BFlh fascicle length in amateur athletes with an acute HSI.
Male amateur athletes were evaluated using ultrasound scans within five days following an HSI. The BFlh fascicle length was estimated using a validated equation.
Eighteen injured athletes participated in this study. There was no significant difference (p = 0.27) in the length of BFlh fascicles between the injured limb (9.53 ± 2.55 cm; 95%CI 8.26 to 10.80 cm) and the uninjured limb (10.54 ± 2.87 cm; 95%CI 9.11 to 11.97 cm). Individual analysis revealed high heterogeneity, with between-limb asymmetries (percentage difference of the injured limb compared to the uninjured limb) ranging from −42% to 25%. Nine out of the 18 athletes had a fascicle length that was more than 10% shorter in the injured limb compared to the uninjured limb, five athletes had a difference of less than 10%, and four athletes had a fascicle length that was more than 10% longer in the injured limb compared to the uninjured limb.
The architecture characteristics of injured and uninjured muscles is not consistent among athletes with HSI. Therefore, rehabilitation programs focused on fascicle lengthening should be evaluated on a case-by-case basis.</description><identifier>ISSN: 1360-8592</identifier><identifier>EISSN: 1532-9283</identifier><identifier>DOI: 10.1016/j.jbmt.2024.01.030</identifier><identifier>PMID: 38763569</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>Adult ; Athletes ; Athletic Injuries - physiopathology ; Hamstring Muscles - injuries ; Hamstring Muscles - physiology ; Hamstring Muscles - physiopathology ; Humans ; Male ; Muscle architecture ; Muscle injury ; Sports physical therapy ; Sprains and Strains - physiopathology ; Ultrasonography ; Young Adult</subject><ispartof>Journal of bodywork and movement therapies, 2024-04, Vol.38, p.269-273</ispartof><rights>2024 Elsevier Ltd</rights><rights>Copyright © 2024 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c307t-de5102164143f7ecb4c4e332078a59e3007301cc03646035a1ba650f6ca5510f3</cites><orcidid>0000-0002-8669-5565 ; 0000-0001-6741-3502 ; 0000-0002-9152-4955 ; 0000-0003-1667-8409</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jbmt.2024.01.030$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38763569$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Medeiros, Diulian Muniz</creatorcontrib><creatorcontrib>Lima-e-Silva, Felipe Xavier de</creatorcontrib><creatorcontrib>Aimi, Mateus</creatorcontrib><creatorcontrib>Vaz, Marco Aurélio</creatorcontrib><creatorcontrib>Baroni, Bruno Manfredini</creatorcontrib><title>Do athletes with hamstring strain injury have shorter muscle fascicles in the injured limb?</title><title>Journal of bodywork and movement therapies</title><addtitle>J Bodyw Mov Ther</addtitle><description>Previous studies have suggested that a reduced length of the biceps femoris long head (BFlh) fascicles may increase the risk of hamstring strain injury (HSI). However, it remains unclear whether the BFlh fascicles of the injured limb are shorter than those of the contralateral limb in athletes with an acute HSI.
To investigate the between-limb asymmetry of BFlh fascicle length in amateur athletes with an acute HSI.
Male amateur athletes were evaluated using ultrasound scans within five days following an HSI. The BFlh fascicle length was estimated using a validated equation.
Eighteen injured athletes participated in this study. There was no significant difference (p = 0.27) in the length of BFlh fascicles between the injured limb (9.53 ± 2.55 cm; 95%CI 8.26 to 10.80 cm) and the uninjured limb (10.54 ± 2.87 cm; 95%CI 9.11 to 11.97 cm). Individual analysis revealed high heterogeneity, with between-limb asymmetries (percentage difference of the injured limb compared to the uninjured limb) ranging from −42% to 25%. Nine out of the 18 athletes had a fascicle length that was more than 10% shorter in the injured limb compared to the uninjured limb, five athletes had a difference of less than 10%, and four athletes had a fascicle length that was more than 10% longer in the injured limb compared to the uninjured limb.
The architecture characteristics of injured and uninjured muscles is not consistent among athletes with HSI. Therefore, rehabilitation programs focused on fascicle lengthening should be evaluated on a case-by-case basis.</description><subject>Adult</subject><subject>Athletes</subject><subject>Athletic Injuries - physiopathology</subject><subject>Hamstring Muscles - injuries</subject><subject>Hamstring Muscles - physiology</subject><subject>Hamstring Muscles - physiopathology</subject><subject>Humans</subject><subject>Male</subject><subject>Muscle architecture</subject><subject>Muscle injury</subject><subject>Sports physical therapy</subject><subject>Sprains and Strains - physiopathology</subject><subject>Ultrasonography</subject><subject>Young Adult</subject><issn>1360-8592</issn><issn>1532-9283</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1r3DAQhkVp6KZJ_kAPQcde7I4-vYZACWmbFAK5JKcchCyPaxl_pJKcsP8-WjbpsacZhud9YR5CvjAoGTD9bSiHZkolBy5LYCUI-ECOmRK8qPlWfMy70FBsVc035HOMAwDUktefyEZsKy2Uro_J44-F2tSPmDDSF5962tsppuDnPzQP62fq52ENu3x_Rhr7JSQMdFqjG5F2Njqfl5ghmno8sNjS0U_N91Ny1Nkx4tnbPCEPv37eX90Ut3fXv68ubwsnoEpFi4oBZ1oyKboKXSOdRCE4VFurahQAlQDmHAgtNQhlWWO1gk47q3KyEyfk66H3KSx_V4zJTD46HEc747JGI0BVuUNqmVF-QF1YYgzYmafgJxt2hoHZSzWD2Us1e6kGmMlSc-j8rX9tJmz_Rd4tZuDiAGD-8tljMFkLzg5bH9Al0y7-f_2vqmeH5Q</recordid><startdate>202404</startdate><enddate>202404</enddate><creator>Medeiros, Diulian Muniz</creator><creator>Lima-e-Silva, Felipe Xavier de</creator><creator>Aimi, Mateus</creator><creator>Vaz, Marco Aurélio</creator><creator>Baroni, Bruno Manfredini</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><orcidid>https://orcid.org/0000-0002-8669-5565</orcidid><orcidid>https://orcid.org/0000-0001-6741-3502</orcidid><orcidid>https://orcid.org/0000-0002-9152-4955</orcidid><orcidid>https://orcid.org/0000-0003-1667-8409</orcidid></search><sort><creationdate>202404</creationdate><title>Do athletes with hamstring strain injury have shorter muscle fascicles in the injured limb?</title><author>Medeiros, Diulian Muniz ; Lima-e-Silva, Felipe Xavier de ; Aimi, Mateus ; Vaz, Marco Aurélio ; Baroni, Bruno Manfredini</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c307t-de5102164143f7ecb4c4e332078a59e3007301cc03646035a1ba650f6ca5510f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Adult</topic><topic>Athletes</topic><topic>Athletic Injuries - physiopathology</topic><topic>Hamstring Muscles - injuries</topic><topic>Hamstring Muscles - physiology</topic><topic>Hamstring Muscles - physiopathology</topic><topic>Humans</topic><topic>Male</topic><topic>Muscle architecture</topic><topic>Muscle injury</topic><topic>Sports physical therapy</topic><topic>Sprains and Strains - physiopathology</topic><topic>Ultrasonography</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Medeiros, Diulian Muniz</creatorcontrib><creatorcontrib>Lima-e-Silva, Felipe Xavier de</creatorcontrib><creatorcontrib>Aimi, Mateus</creatorcontrib><creatorcontrib>Vaz, Marco Aurélio</creatorcontrib><creatorcontrib>Baroni, Bruno Manfredini</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>Journal of bodywork and movement therapies</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Medeiros, Diulian Muniz</au><au>Lima-e-Silva, Felipe Xavier de</au><au>Aimi, Mateus</au><au>Vaz, Marco Aurélio</au><au>Baroni, Bruno Manfredini</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Do athletes with hamstring strain injury have shorter muscle fascicles in the injured limb?</atitle><jtitle>Journal of bodywork and movement therapies</jtitle><addtitle>J Bodyw Mov Ther</addtitle><date>2024-04</date><risdate>2024</risdate><volume>38</volume><spage>269</spage><epage>273</epage><pages>269-273</pages><issn>1360-8592</issn><eissn>1532-9283</eissn><abstract>Previous studies have suggested that a reduced length of the biceps femoris long head (BFlh) fascicles may increase the risk of hamstring strain injury (HSI). However, it remains unclear whether the BFlh fascicles of the injured limb are shorter than those of the contralateral limb in athletes with an acute HSI.
To investigate the between-limb asymmetry of BFlh fascicle length in amateur athletes with an acute HSI.
Male amateur athletes were evaluated using ultrasound scans within five days following an HSI. The BFlh fascicle length was estimated using a validated equation.
Eighteen injured athletes participated in this study. There was no significant difference (p = 0.27) in the length of BFlh fascicles between the injured limb (9.53 ± 2.55 cm; 95%CI 8.26 to 10.80 cm) and the uninjured limb (10.54 ± 2.87 cm; 95%CI 9.11 to 11.97 cm). Individual analysis revealed high heterogeneity, with between-limb asymmetries (percentage difference of the injured limb compared to the uninjured limb) ranging from −42% to 25%. Nine out of the 18 athletes had a fascicle length that was more than 10% shorter in the injured limb compared to the uninjured limb, five athletes had a difference of less than 10%, and four athletes had a fascicle length that was more than 10% longer in the injured limb compared to the uninjured limb.
The architecture characteristics of injured and uninjured muscles is not consistent among athletes with HSI. Therefore, rehabilitation programs focused on fascicle lengthening should be evaluated on a case-by-case basis.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><pmid>38763569</pmid><doi>10.1016/j.jbmt.2024.01.030</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-8669-5565</orcidid><orcidid>https://orcid.org/0000-0001-6741-3502</orcidid><orcidid>https://orcid.org/0000-0002-9152-4955</orcidid><orcidid>https://orcid.org/0000-0003-1667-8409</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings; MEDLINE |
| subjects | Adult Athletes Athletic Injuries - physiopathology Hamstring Muscles - injuries Hamstring Muscles - physiology Hamstring Muscles - physiopathology Humans Male Muscle architecture Muscle injury Sports physical therapy Sprains and Strains - physiopathology Ultrasonography Young Adult |
| title | Do athletes with hamstring strain injury have shorter muscle fascicles in the injured limb? |
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