Knee extensor power predicts six‐minute walk test performance in people with transfemoral amputations
Background Lower‐limb amputees have increased metabolic costs during walking that may be mitigated by maintaining quadriceps strength and power following amputation. However, there are no current studies investigating the relationship between thigh strength and walking performance in individuals wit...
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| Veröffentlicht in: | PM & R 2022-04, Vol.14 (4), p.445-451 |
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| creator | Slater, Lindsay Finucane, Suzanne Hargrove, Levi J. |
| description | Background
Lower‐limb amputees have increased metabolic costs during walking that may be mitigated by maintaining quadriceps strength and power following amputation. However, there are no current studies investigating the relationship between thigh strength and walking performance in individuals with transfemoral amputation.
Objective
To quantify the relationship between intact limb quadriceps strength in transfemoral amputees and six‐minute walk test (6MWT) performance.
Design
Descriptive laboratory study.
Setting
Laboratory.
Participants
Eleven participants with unilateral transfemoral amputations from trauma or osteosarcoma (4 women/7 men, 46.21 ± 12.68 years old, 28.24 ± 20.57 years following amputation).
Interventions
Strength and power testing on the intact limb followed by 6MWT with a flowmeter to measure oxygen uptake (VO2).
Main Outcome Measures
Strength included mass‐normalized peak torque, average torque, and average power. 6MWT measures included total distance traveled and VO2 normalized to distance and mass. Significant correlations (P ≤ .05) were retained for a regression analysis.
Results
Peak isokinetic knee extensor torque was correlated with total VO2 (r = −.60, P = .05) and distance traveled (r = .84, P = .001). Average isokinetic knee extensor torque was correlated with total VO2 (r = −.61, P = .046) and distance traveled (r = .85, P = .001). Average knee extensor power was correlated with total VO2 (r = −.67, P = .026) and distance traveled (r = .88, P |
| doi_str_mv | 10.1002/pmrj.12606 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_9028187</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2515068256</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4206-56f2e4d3e2718a0e3ae966808f61ace7d12b80a2be4c43d0deec7dcd5d03f4973</originalsourceid><addsrcrecordid>eNp9kctO3DAUhq2qiMvApg9QeVkhDfiSOM6mUjUCSgGBULu2PPYJmCZ2sB0GdjxCn5EnaYYB1G7Y-KLz6TvH_hH6RMkeJYTt91282aNMEPEBbdKaF1NaCv7x9VxItoG2UrohRBRUinW0wbkUQlT1Jro68QAY7jP4FCLuwwLGNYJ1Jiec3P3T45_O-SEDXuj2N86QMu4hNiF22hvAzo_X0Ldj3eVrnKP2qYEuRN1i3fVD1tkFn7bRWqPbBDsv-wT9Ojz4Ofs-PT0_Op59O52aghExLUXDoLAcWEWlJsA11EJIIhtBtYHKUjaXRLM5FKbgllgAU1ljS0t4U9QVn6CvK28_zDuwBvw4Uav66DodH1TQTv1f8e5aXYU7VRMmqVwKvrwIYrgdxteqziUDbas9hCEpVtKSCMnGH56g3RVqYkgpQvPWhhK1TEYtk1HPyYzw538He0NfoxgBugIWroWHd1Tq4uzyx0r6F1vAnps</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2515068256</pqid></control><display><type>article</type><title>Knee extensor power predicts six‐minute walk test performance in people with transfemoral amputations</title><source>MEDLINE</source><source>Wiley Online Library All Journals</source><creator>Slater, Lindsay ; Finucane, Suzanne ; Hargrove, Levi J.</creator><creatorcontrib>Slater, Lindsay ; Finucane, Suzanne ; Hargrove, Levi J.</creatorcontrib><description>Background
Lower‐limb amputees have increased metabolic costs during walking that may be mitigated by maintaining quadriceps strength and power following amputation. However, there are no current studies investigating the relationship between thigh strength and walking performance in individuals with transfemoral amputation.
Objective
To quantify the relationship between intact limb quadriceps strength in transfemoral amputees and six‐minute walk test (6MWT) performance.
Design
Descriptive laboratory study.
Setting
Laboratory.
Participants
Eleven participants with unilateral transfemoral amputations from trauma or osteosarcoma (4 women/7 men, 46.21 ± 12.68 years old, 28.24 ± 20.57 years following amputation).
Interventions
Strength and power testing on the intact limb followed by 6MWT with a flowmeter to measure oxygen uptake (VO2).
Main Outcome Measures
Strength included mass‐normalized peak torque, average torque, and average power. 6MWT measures included total distance traveled and VO2 normalized to distance and mass. Significant correlations (P ≤ .05) were retained for a regression analysis.
Results
Peak isokinetic knee extensor torque was correlated with total VO2 (r = −.60, P = .05) and distance traveled (r = .84, P = .001). Average isokinetic knee extensor torque was correlated with total VO2 (r = −.61, P = .046) and distance traveled (r = .85, P = .001). Average knee extensor power was correlated with total VO2 (r = −.67, P = .026) and distance traveled (r = .88, P < .001). Peak isometric knee extensor torque was correlated with distance traveled (r = .69, P = .019). Average power explained 77.2% of the variance in distance traveled during the 6MWT (P < .001) and average power explained 44.2% of the variance in total VO2 during the 6MWT (P = .026).
Conclusions
Knee extensor strength was correlated with performance on the 6MWT in individuals with unilateral transfemoral amputation. The strongest relationship was between isokinetic quadriceps power and distance traveled, which suggests that developing quadriceps power in the intact limb following amputation may be an important factor to reduce metabolic cost of walking and support a return to an active lifestyle.</description><identifier>ISSN: 1934-1482</identifier><identifier>EISSN: 1934-1563</identifier><identifier>DOI: 10.1002/pmrj.12606</identifier><identifier>PMID: 33866679</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>Adult ; Amputation ; Female ; Humans ; Knee ; Knee Joint ; Male ; Middle Aged ; Muscle Strength ; Thigh ; Walk Test</subject><ispartof>PM & R, 2022-04, Vol.14 (4), p.445-451</ispartof><rights>2021 American Academy of Physical Medicine and Rehabilitation.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4206-56f2e4d3e2718a0e3ae966808f61ace7d12b80a2be4c43d0deec7dcd5d03f4973</citedby><cites>FETCH-LOGICAL-c4206-56f2e4d3e2718a0e3ae966808f61ace7d12b80a2be4c43d0deec7dcd5d03f4973</cites><orcidid>0000-0001-6105-4334</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpmrj.12606$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpmrj.12606$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1416,27923,27924,45573,45574</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33866679$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Slater, Lindsay</creatorcontrib><creatorcontrib>Finucane, Suzanne</creatorcontrib><creatorcontrib>Hargrove, Levi J.</creatorcontrib><title>Knee extensor power predicts six‐minute walk test performance in people with transfemoral amputations</title><title>PM & R</title><addtitle>PM R</addtitle><description>Background
Lower‐limb amputees have increased metabolic costs during walking that may be mitigated by maintaining quadriceps strength and power following amputation. However, there are no current studies investigating the relationship between thigh strength and walking performance in individuals with transfemoral amputation.
Objective
To quantify the relationship between intact limb quadriceps strength in transfemoral amputees and six‐minute walk test (6MWT) performance.
Design
Descriptive laboratory study.
Setting
Laboratory.
Participants
Eleven participants with unilateral transfemoral amputations from trauma or osteosarcoma (4 women/7 men, 46.21 ± 12.68 years old, 28.24 ± 20.57 years following amputation).
Interventions
Strength and power testing on the intact limb followed by 6MWT with a flowmeter to measure oxygen uptake (VO2).
Main Outcome Measures
Strength included mass‐normalized peak torque, average torque, and average power. 6MWT measures included total distance traveled and VO2 normalized to distance and mass. Significant correlations (P ≤ .05) were retained for a regression analysis.
Results
Peak isokinetic knee extensor torque was correlated with total VO2 (r = −.60, P = .05) and distance traveled (r = .84, P = .001). Average isokinetic knee extensor torque was correlated with total VO2 (r = −.61, P = .046) and distance traveled (r = .85, P = .001). Average knee extensor power was correlated with total VO2 (r = −.67, P = .026) and distance traveled (r = .88, P < .001). Peak isometric knee extensor torque was correlated with distance traveled (r = .69, P = .019). Average power explained 77.2% of the variance in distance traveled during the 6MWT (P < .001) and average power explained 44.2% of the variance in total VO2 during the 6MWT (P = .026).
Conclusions
Knee extensor strength was correlated with performance on the 6MWT in individuals with unilateral transfemoral amputation. The strongest relationship was between isokinetic quadriceps power and distance traveled, which suggests that developing quadriceps power in the intact limb following amputation may be an important factor to reduce metabolic cost of walking and support a return to an active lifestyle.</description><subject>Adult</subject><subject>Amputation</subject><subject>Female</subject><subject>Humans</subject><subject>Knee</subject><subject>Knee Joint</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Muscle Strength</subject><subject>Thigh</subject><subject>Walk Test</subject><issn>1934-1482</issn><issn>1934-1563</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kctO3DAUhq2qiMvApg9QeVkhDfiSOM6mUjUCSgGBULu2PPYJmCZ2sB0GdjxCn5EnaYYB1G7Y-KLz6TvH_hH6RMkeJYTt91282aNMEPEBbdKaF1NaCv7x9VxItoG2UrohRBRUinW0wbkUQlT1Jro68QAY7jP4FCLuwwLGNYJ1Jiec3P3T45_O-SEDXuj2N86QMu4hNiF22hvAzo_X0Ldj3eVrnKP2qYEuRN1i3fVD1tkFn7bRWqPbBDsv-wT9Ojz4Ofs-PT0_Op59O52aghExLUXDoLAcWEWlJsA11EJIIhtBtYHKUjaXRLM5FKbgllgAU1ljS0t4U9QVn6CvK28_zDuwBvw4Uav66DodH1TQTv1f8e5aXYU7VRMmqVwKvrwIYrgdxteqziUDbas9hCEpVtKSCMnGH56g3RVqYkgpQvPWhhK1TEYtk1HPyYzw538He0NfoxgBugIWroWHd1Tq4uzyx0r6F1vAnps</recordid><startdate>202204</startdate><enddate>202204</enddate><creator>Slater, Lindsay</creator><creator>Finucane, Suzanne</creator><creator>Hargrove, Levi J.</creator><general>John Wiley & Sons, Inc</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><scope>5PM</scope><orcidid>https://orcid.org/0000-0001-6105-4334</orcidid></search><sort><creationdate>202204</creationdate><title>Knee extensor power predicts six‐minute walk test performance in people with transfemoral amputations</title><author>Slater, Lindsay ; Finucane, Suzanne ; Hargrove, Levi J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4206-56f2e4d3e2718a0e3ae966808f61ace7d12b80a2be4c43d0deec7dcd5d03f4973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Adult</topic><topic>Amputation</topic><topic>Female</topic><topic>Humans</topic><topic>Knee</topic><topic>Knee Joint</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Muscle Strength</topic><topic>Thigh</topic><topic>Walk Test</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Slater, Lindsay</creatorcontrib><creatorcontrib>Finucane, Suzanne</creatorcontrib><creatorcontrib>Hargrove, Levi 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><collection>PubMed Central (Full Participant titles)</collection><jtitle>PM & R</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Slater, Lindsay</au><au>Finucane, Suzanne</au><au>Hargrove, Levi J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Knee extensor power predicts six‐minute walk test performance in people with transfemoral amputations</atitle><jtitle>PM & R</jtitle><addtitle>PM R</addtitle><date>2022-04</date><risdate>2022</risdate><volume>14</volume><issue>4</issue><spage>445</spage><epage>451</epage><pages>445-451</pages><issn>1934-1482</issn><eissn>1934-1563</eissn><abstract>Background
Lower‐limb amputees have increased metabolic costs during walking that may be mitigated by maintaining quadriceps strength and power following amputation. However, there are no current studies investigating the relationship between thigh strength and walking performance in individuals with transfemoral amputation.
Objective
To quantify the relationship between intact limb quadriceps strength in transfemoral amputees and six‐minute walk test (6MWT) performance.
Design
Descriptive laboratory study.
Setting
Laboratory.
Participants
Eleven participants with unilateral transfemoral amputations from trauma or osteosarcoma (4 women/7 men, 46.21 ± 12.68 years old, 28.24 ± 20.57 years following amputation).
Interventions
Strength and power testing on the intact limb followed by 6MWT with a flowmeter to measure oxygen uptake (VO2).
Main Outcome Measures
Strength included mass‐normalized peak torque, average torque, and average power. 6MWT measures included total distance traveled and VO2 normalized to distance and mass. Significant correlations (P ≤ .05) were retained for a regression analysis.
Results
Peak isokinetic knee extensor torque was correlated with total VO2 (r = −.60, P = .05) and distance traveled (r = .84, P = .001). Average isokinetic knee extensor torque was correlated with total VO2 (r = −.61, P = .046) and distance traveled (r = .85, P = .001). Average knee extensor power was correlated with total VO2 (r = −.67, P = .026) and distance traveled (r = .88, P < .001). Peak isometric knee extensor torque was correlated with distance traveled (r = .69, P = .019). Average power explained 77.2% of the variance in distance traveled during the 6MWT (P < .001) and average power explained 44.2% of the variance in total VO2 during the 6MWT (P = .026).
Conclusions
Knee extensor strength was correlated with performance on the 6MWT in individuals with unilateral transfemoral amputation. The strongest relationship was between isokinetic quadriceps power and distance traveled, which suggests that developing quadriceps power in the intact limb following amputation may be an important factor to reduce metabolic cost of walking and support a return to an active lifestyle.</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><pmid>33866679</pmid><doi>10.1002/pmrj.12606</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0001-6105-4334</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1934-1482 |
| ispartof | PM & R, 2022-04, Vol.14 (4), p.445-451 |
| issn | 1934-1482 1934-1563 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_9028187 |
| source | MEDLINE; Wiley Online Library All Journals |
| subjects | Adult Amputation Female Humans Knee Knee Joint Male Middle Aged Muscle Strength Thigh Walk Test |
| title | Knee extensor power predicts six‐minute walk test performance in people with transfemoral amputations |
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