Similar Isokinetic Strength Preinjury and at Return to Sport after Hamstring Injury
INTRODUCTIONSide-to-side strength differences are often used in return to sport (RTS) decision making after hamstring injury. In football (soccer), there is little consensus, and a side-to-side difference of 95% compared with preinjury strength. Overall, 63.4% of the players had a >10% negative s...
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| Veröffentlicht in: | Medicine and science in sports and exercise 2019-06, Vol.51 (6), p.1091-1098 |
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| creator | VAN DYK, NICOL WANGENSTEEN, ARNLAUG VERMEULEN, ROBIN WHITELEY, ROD BAHR, ROALD TOL, JOHANNES L WITVROUW, ERIK |
| description | INTRODUCTIONSide-to-side strength differences are often used in return to sport (RTS) decision making after hamstring injury. In football (soccer), there is little consensus, and a side-to-side difference of 95% compared with preinjury strength. Overall, 63.4% of the players had a >10% negative strength difference (i.e., the injured limb being weaker), and 57.9% of the players had a >10% positive strength difference (i.e., the injured limb being stronger) in at least one of the five isokinetic variables.
CONCLUSIONThe distribution of isokinetic strength differences when comparing strength at RTS with preinjury measures was similar, urging clinical caution when interpreting these results. Small changes in the isokinetic strength of the injured limb at RTS compared with preinjury strength suggest that isokinetic cutoff values are not useful to guide the restoration of strength as a criterion for RTS after hamstring injury. |
| doi_str_mv | 10.1249/MSS.0000000000001900 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2179339600</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2179339600</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4680-d6492496918ecc3d16989078794498f8851a3e20dc7ba5786bb488797ca2ada53</originalsourceid><addsrcrecordid>eNp9kE1PwzAMQCMEYmPwDxDKkUtH0qRtckQTsElDIArnKE3TLVs_RpJq2r8nsIEQB3yxZD_b8gPgEqMxjim_eczzMfoVmCN0BIY4IShCBCfHYBhqScQxwQNw5twqQBkh-BQMCEopilkyBHluGlNLC2euW5tWe6Ng7q1uF34Jn6027aq3OyjbEkoPX7TvbQt9B_NNZz2UldcWTmXjvDXtAs6-6HNwUsna6YtDHoG3-7vXyTSaPz3MJrfzSNGUoahMKQ-PpBwzrRQpccoZRxnLOKWcVYwlWBIdo1JlhUwylhYFZaGbKRnLUiZkBK73eze2e--186IxTum6lq3ueidinHFCeIpQQOkeVbZzzupKbKxppN0JjMSnThF0ir86w9jV4UJfNLr8Gfr2FwC2B7ZdHVS4dd1vtRVLLWu__H_3B-HWgE4</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2179339600</pqid></control><display><type>article</type><title>Similar Isokinetic Strength Preinjury and at Return to Sport after Hamstring Injury</title><source>MEDLINE</source><source>Journals@Ovid LWW Legacy Archive</source><source>Journals@Ovid Complete</source><creator>VAN DYK, NICOL ; WANGENSTEEN, ARNLAUG ; VERMEULEN, ROBIN ; WHITELEY, ROD ; BAHR, ROALD ; TOL, JOHANNES L ; WITVROUW, ERIK</creator><creatorcontrib>VAN DYK, NICOL ; WANGENSTEEN, ARNLAUG ; VERMEULEN, ROBIN ; WHITELEY, ROD ; BAHR, ROALD ; TOL, JOHANNES L ; WITVROUW, ERIK</creatorcontrib><description>INTRODUCTIONSide-to-side strength differences are often used in return to sport (RTS) decision making after hamstring injury. In football (soccer), there is little consensus, and a side-to-side difference of <10% is often suggested as a criterion. To date, no study has determined whether differences exist when comparing the strength of the injured limb at RTS with the preinjury level.
PURPOSEThe aims of this study were to compare the isokinetic strength at RTS with preinjury strength in the injured limb and to investigate the side-to-side differences at RTS.
METHODSThis study was based on a pooled group of patients participating in two single-site randomized controlled trials. All eligible professional male soccer players who suffered a hamstring injury confirmed by magnetic resonance imaging were included. The isokinetic strength of the injured limb at RTS was compared with preinjury screening tests, and the side-to-side difference was determined at both time points.
RESULTSIn total, 41 hamstring injuries were included in the analyses. Side-to-side differences in isokinetic strength at RTS were similar to preinjury levels. At RTS, the average strength of the injured limb was >95% compared with preinjury strength. Overall, 63.4% of the players had a >10% negative strength difference (i.e., the injured limb being weaker), and 57.9% of the players had a >10% positive strength difference (i.e., the injured limb being stronger) in at least one of the five isokinetic variables.
CONCLUSIONThe distribution of isokinetic strength differences when comparing strength at RTS with preinjury measures was similar, urging clinical caution when interpreting these results. Small changes in the isokinetic strength of the injured limb at RTS compared with preinjury strength suggest that isokinetic cutoff values are not useful to guide the restoration of strength as a criterion for RTS after hamstring injury.</description><identifier>ISSN: 0195-9131</identifier><identifier>EISSN: 1530-0315</identifier><identifier>DOI: 10.1249/MSS.0000000000001900</identifier><identifier>PMID: 30640285</identifier><language>eng</language><publisher>United States: American College of Sports Medicine</publisher><subject>Adult ; Decision Making ; Hamstring Muscles - injuries ; Hamstring Muscles - physiopathology ; Humans ; Male ; Muscle Strength - physiology ; Muscle Strength Dynamometer ; Recurrence ; Return to Sport ; Risk Factors ; Soccer - injuries ; Soccer - physiology ; Young Adult</subject><ispartof>Medicine and science in sports and exercise, 2019-06, Vol.51 (6), p.1091-1098</ispartof><rights>2019 American College of Sports Medicine</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4680-d6492496918ecc3d16989078794498f8851a3e20dc7ba5786bb488797ca2ada53</citedby><cites>FETCH-LOGICAL-c4680-d6492496918ecc3d16989078794498f8851a3e20dc7ba5786bb488797ca2ada53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30640285$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>VAN DYK, NICOL</creatorcontrib><creatorcontrib>WANGENSTEEN, ARNLAUG</creatorcontrib><creatorcontrib>VERMEULEN, ROBIN</creatorcontrib><creatorcontrib>WHITELEY, ROD</creatorcontrib><creatorcontrib>BAHR, ROALD</creatorcontrib><creatorcontrib>TOL, JOHANNES L</creatorcontrib><creatorcontrib>WITVROUW, ERIK</creatorcontrib><title>Similar Isokinetic Strength Preinjury and at Return to Sport after Hamstring Injury</title><title>Medicine and science in sports and exercise</title><addtitle>Med Sci Sports Exerc</addtitle><description>INTRODUCTIONSide-to-side strength differences are often used in return to sport (RTS) decision making after hamstring injury. In football (soccer), there is little consensus, and a side-to-side difference of <10% is often suggested as a criterion. To date, no study has determined whether differences exist when comparing the strength of the injured limb at RTS with the preinjury level.
PURPOSEThe aims of this study were to compare the isokinetic strength at RTS with preinjury strength in the injured limb and to investigate the side-to-side differences at RTS.
METHODSThis study was based on a pooled group of patients participating in two single-site randomized controlled trials. All eligible professional male soccer players who suffered a hamstring injury confirmed by magnetic resonance imaging were included. The isokinetic strength of the injured limb at RTS was compared with preinjury screening tests, and the side-to-side difference was determined at both time points.
RESULTSIn total, 41 hamstring injuries were included in the analyses. Side-to-side differences in isokinetic strength at RTS were similar to preinjury levels. At RTS, the average strength of the injured limb was >95% compared with preinjury strength. Overall, 63.4% of the players had a >10% negative strength difference (i.e., the injured limb being weaker), and 57.9% of the players had a >10% positive strength difference (i.e., the injured limb being stronger) in at least one of the five isokinetic variables.
CONCLUSIONThe distribution of isokinetic strength differences when comparing strength at RTS with preinjury measures was similar, urging clinical caution when interpreting these results. Small changes in the isokinetic strength of the injured limb at RTS compared with preinjury strength suggest that isokinetic cutoff values are not useful to guide the restoration of strength as a criterion for RTS after hamstring injury.</description><subject>Adult</subject><subject>Decision Making</subject><subject>Hamstring Muscles - injuries</subject><subject>Hamstring Muscles - physiopathology</subject><subject>Humans</subject><subject>Male</subject><subject>Muscle Strength - physiology</subject><subject>Muscle Strength Dynamometer</subject><subject>Recurrence</subject><subject>Return to Sport</subject><subject>Risk Factors</subject><subject>Soccer - injuries</subject><subject>Soccer - physiology</subject><subject>Young Adult</subject><issn>0195-9131</issn><issn>1530-0315</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1PwzAMQCMEYmPwDxDKkUtH0qRtckQTsElDIArnKE3TLVs_RpJq2r8nsIEQB3yxZD_b8gPgEqMxjim_eczzMfoVmCN0BIY4IShCBCfHYBhqScQxwQNw5twqQBkh-BQMCEopilkyBHluGlNLC2euW5tWe6Ng7q1uF34Jn6027aq3OyjbEkoPX7TvbQt9B_NNZz2UldcWTmXjvDXtAs6-6HNwUsna6YtDHoG3-7vXyTSaPz3MJrfzSNGUoahMKQ-PpBwzrRQpccoZRxnLOKWcVYwlWBIdo1JlhUwylhYFZaGbKRnLUiZkBK73eze2e--186IxTum6lq3ueidinHFCeIpQQOkeVbZzzupKbKxppN0JjMSnThF0ir86w9jV4UJfNLr8Gfr2FwC2B7ZdHVS4dd1vtRVLLWu__H_3B-HWgE4</recordid><startdate>201906</startdate><enddate>201906</enddate><creator>VAN DYK, NICOL</creator><creator>WANGENSTEEN, ARNLAUG</creator><creator>VERMEULEN, ROBIN</creator><creator>WHITELEY, ROD</creator><creator>BAHR, ROALD</creator><creator>TOL, JOHANNES L</creator><creator>WITVROUW, ERIK</creator><general>American College of Sports Medicine</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>201906</creationdate><title>Similar Isokinetic Strength Preinjury and at Return to Sport after Hamstring Injury</title><author>VAN DYK, NICOL ; WANGENSTEEN, ARNLAUG ; VERMEULEN, ROBIN ; WHITELEY, ROD ; BAHR, ROALD ; TOL, JOHANNES L ; WITVROUW, ERIK</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4680-d6492496918ecc3d16989078794498f8851a3e20dc7ba5786bb488797ca2ada53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adult</topic><topic>Decision Making</topic><topic>Hamstring Muscles - injuries</topic><topic>Hamstring Muscles - physiopathology</topic><topic>Humans</topic><topic>Male</topic><topic>Muscle Strength - physiology</topic><topic>Muscle Strength Dynamometer</topic><topic>Recurrence</topic><topic>Return to Sport</topic><topic>Risk Factors</topic><topic>Soccer - injuries</topic><topic>Soccer - physiology</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>VAN DYK, NICOL</creatorcontrib><creatorcontrib>WANGENSTEEN, ARNLAUG</creatorcontrib><creatorcontrib>VERMEULEN, ROBIN</creatorcontrib><creatorcontrib>WHITELEY, ROD</creatorcontrib><creatorcontrib>BAHR, ROALD</creatorcontrib><creatorcontrib>TOL, JOHANNES L</creatorcontrib><creatorcontrib>WITVROUW, ERIK</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>Medicine and science in sports and exercise</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>VAN DYK, NICOL</au><au>WANGENSTEEN, ARNLAUG</au><au>VERMEULEN, ROBIN</au><au>WHITELEY, ROD</au><au>BAHR, ROALD</au><au>TOL, JOHANNES L</au><au>WITVROUW, ERIK</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Similar Isokinetic Strength Preinjury and at Return to Sport after Hamstring Injury</atitle><jtitle>Medicine and science in sports and exercise</jtitle><addtitle>Med Sci Sports Exerc</addtitle><date>2019-06</date><risdate>2019</risdate><volume>51</volume><issue>6</issue><spage>1091</spage><epage>1098</epage><pages>1091-1098</pages><issn>0195-9131</issn><eissn>1530-0315</eissn><abstract>INTRODUCTIONSide-to-side strength differences are often used in return to sport (RTS) decision making after hamstring injury. In football (soccer), there is little consensus, and a side-to-side difference of <10% is often suggested as a criterion. To date, no study has determined whether differences exist when comparing the strength of the injured limb at RTS with the preinjury level.
PURPOSEThe aims of this study were to compare the isokinetic strength at RTS with preinjury strength in the injured limb and to investigate the side-to-side differences at RTS.
METHODSThis study was based on a pooled group of patients participating in two single-site randomized controlled trials. All eligible professional male soccer players who suffered a hamstring injury confirmed by magnetic resonance imaging were included. The isokinetic strength of the injured limb at RTS was compared with preinjury screening tests, and the side-to-side difference was determined at both time points.
RESULTSIn total, 41 hamstring injuries were included in the analyses. Side-to-side differences in isokinetic strength at RTS were similar to preinjury levels. At RTS, the average strength of the injured limb was >95% compared with preinjury strength. Overall, 63.4% of the players had a >10% negative strength difference (i.e., the injured limb being weaker), and 57.9% of the players had a >10% positive strength difference (i.e., the injured limb being stronger) in at least one of the five isokinetic variables.
CONCLUSIONThe distribution of isokinetic strength differences when comparing strength at RTS with preinjury measures was similar, urging clinical caution when interpreting these results. Small changes in the isokinetic strength of the injured limb at RTS compared with preinjury strength suggest that isokinetic cutoff values are not useful to guide the restoration of strength as a criterion for RTS after hamstring injury.</abstract><cop>United States</cop><pub>American College of Sports Medicine</pub><pmid>30640285</pmid><doi>10.1249/MSS.0000000000001900</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0195-9131 |
| ispartof | Medicine and science in sports and exercise, 2019-06, Vol.51 (6), p.1091-1098 |
| issn | 0195-9131 1530-0315 |
| language | eng |
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| source | MEDLINE; Journals@Ovid LWW Legacy Archive; Journals@Ovid Complete |
| subjects | Adult Decision Making Hamstring Muscles - injuries Hamstring Muscles - physiopathology Humans Male Muscle Strength - physiology Muscle Strength Dynamometer Recurrence Return to Sport Risk Factors Soccer - injuries Soccer - physiology Young Adult |
| title | Similar Isokinetic Strength Preinjury and at Return to Sport after Hamstring Injury |
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