A comparison of negative joint work and vertical ground reaction force loading rates in Chi runners and rearfoot-striking runners
Observational. To compare lower extremity negative joint work and vertical ground reaction force loading rates in rearfoot-striking (RS) and Chi runners. Alternative running styles such as Chi running have become a popular alternative to RS running. Proponents assert that this running style reduces...
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| Veröffentlicht in: | The journal of orthopaedic and sports physical therapy 2013-10, Vol.43 (10), p.685-692 |
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| container_title | The journal of orthopaedic and sports physical therapy |
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| creator | Goss, Donald Lee Gross, Michael T |
| description | Observational.
To compare lower extremity negative joint work and vertical ground reaction force loading rates in rearfoot-striking (RS) and Chi runners.
Alternative running styles such as Chi running have become a popular alternative to RS running. Proponents assert that this running style reduces knee joint loading and ground reaction force loading rates.
Twenty-two RS and 12 Chi runners ran for 5 minutes at a self-selected speed on an instrumented treadmill. A 3-D motion analysis system was used to obtain kinematic data. Average vertical ground reaction force loading rate and negative work of the ankle dorsiflexors, ankle plantar flexors, and knee extensors were computed during the stance phase. Groups were compared using a 1-way analysis of covariance for each variable, with running speed and age as covariates.
On average, RS runners demonstrated greater knee extensor negative work (RS, -0.332 J/body height × body weight [BH·BW]; Chi, -0.144 J/BH·BW; P |
| doi_str_mv | 10.2519/jospt.2013.4542 |
| format | Article |
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To compare lower extremity negative joint work and vertical ground reaction force loading rates in rearfoot-striking (RS) and Chi runners.
Alternative running styles such as Chi running have become a popular alternative to RS running. Proponents assert that this running style reduces knee joint loading and ground reaction force loading rates.
Twenty-two RS and 12 Chi runners ran for 5 minutes at a self-selected speed on an instrumented treadmill. A 3-D motion analysis system was used to obtain kinematic data. Average vertical ground reaction force loading rate and negative work of the ankle dorsiflexors, ankle plantar flexors, and knee extensors were computed during the stance phase. Groups were compared using a 1-way analysis of covariance for each variable, with running speed and age as covariates.
On average, RS runners demonstrated greater knee extensor negative work (RS, -0.332 J/body height × body weight [BH·BW]; Chi, -0.144 J/BH·BW; P<.001), whereas Chi runners demonstrated more ankle plantar flexor negative work (Chi, -0.467 J/BH·BW; RS, -0.315 J/BH·BW; P<.001). RS runners demonstrated greater average vertical ground reaction force loading rates than Chi runners (RS, 68.6 BW/s; Chi, 43.1 BW/s; P<.001).
Chi running may reduce vertical loading rates and knee extensor work, but may increase work of the ankle plantar flexors.</description><identifier>ISSN: 0190-6011</identifier><identifier>EISSN: 1938-1344</identifier><identifier>DOI: 10.2519/jospt.2013.4542</identifier><identifier>PMID: 24256170</identifier><language>eng</language><publisher>United States</publisher><subject>Adult ; Ankle Joint - physiology ; Biomechanical Phenomena ; Female ; Humans ; Knee Joint - physiology ; Male ; Middle Aged ; Running - physiology ; Weight-Bearing ; Young Adult</subject><ispartof>The journal of orthopaedic and sports physical therapy, 2013-10, Vol.43 (10), p.685-692</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c338t-595b2e09fff4d81337719fa4e14ac3fc14e96587f95a246ee06001c1a69c838c3</citedby><cites>FETCH-LOGICAL-c338t-595b2e09fff4d81337719fa4e14ac3fc14e96587f95a246ee06001c1a69c838c3</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/24256170$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Goss, Donald Lee</creatorcontrib><creatorcontrib>Gross, Michael T</creatorcontrib><title>A comparison of negative joint work and vertical ground reaction force loading rates in Chi runners and rearfoot-striking runners</title><title>The journal of orthopaedic and sports physical therapy</title><addtitle>J Orthop Sports Phys Ther</addtitle><description>Observational.
To compare lower extremity negative joint work and vertical ground reaction force loading rates in rearfoot-striking (RS) and Chi runners.
Alternative running styles such as Chi running have become a popular alternative to RS running. Proponents assert that this running style reduces knee joint loading and ground reaction force loading rates.
Twenty-two RS and 12 Chi runners ran for 5 minutes at a self-selected speed on an instrumented treadmill. A 3-D motion analysis system was used to obtain kinematic data. Average vertical ground reaction force loading rate and negative work of the ankle dorsiflexors, ankle plantar flexors, and knee extensors were computed during the stance phase. Groups were compared using a 1-way analysis of covariance for each variable, with running speed and age as covariates.
On average, RS runners demonstrated greater knee extensor negative work (RS, -0.332 J/body height × body weight [BH·BW]; Chi, -0.144 J/BH·BW; P<.001), whereas Chi runners demonstrated more ankle plantar flexor negative work (Chi, -0.467 J/BH·BW; RS, -0.315 J/BH·BW; P<.001). RS runners demonstrated greater average vertical ground reaction force loading rates than Chi runners (RS, 68.6 BW/s; Chi, 43.1 BW/s; P<.001).
Chi running may reduce vertical loading rates and knee extensor work, but may increase work of the ankle plantar flexors.</description><subject>Adult</subject><subject>Ankle Joint - physiology</subject><subject>Biomechanical Phenomena</subject><subject>Female</subject><subject>Humans</subject><subject>Knee Joint - physiology</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Running - physiology</subject><subject>Weight-Bearing</subject><subject>Young Adult</subject><issn>0190-6011</issn><issn>1938-1344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kD1PwzAQhi0EoqUwsyGPLGl9sZPGY1XxJVVigTly3XNxm9rFdooY-eekH3DL6XTP-w4PIbfAhnkBcrTycZuGOQM-FIXIz0gfJK8y4EKckz4DybKSAfTIVYwr1o1g4pL0cpEXJYxZn_xMqPabrQo2eke9oQ6XKtkd0pW3LtEvH9ZUuQXdYUhWq4Yug2-7O6DSyXYZ44NG2ni1sG5Jg0oYqXV0-mFpaJ3DEA_5jg_G-5TFFOz6gB6_1-TCqCbizWkPyPvjw9v0OZu9Pr1MJ7NMc16lrJDFPEcmjTFiUQHn4zFIowSCUJobDQJlWVRjIwuVixKRlYyBBlVKXfFK8wG5P_Zug_9sMaZ6Y6PGplEOfRtrEGWnrTMjOnR0RHXwMQY09TbYjQrfNbB6770-eK_33uu99y5xdypv5xtc_PN_ovkvC5KBVw</recordid><startdate>20131001</startdate><enddate>20131001</enddate><creator>Goss, Donald Lee</creator><creator>Gross, Michael T</creator><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>20131001</creationdate><title>A comparison of negative joint work and vertical ground reaction force loading rates in Chi runners and rearfoot-striking runners</title><author>Goss, Donald Lee ; Gross, Michael T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c338t-595b2e09fff4d81337719fa4e14ac3fc14e96587f95a246ee06001c1a69c838c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Adult</topic><topic>Ankle Joint - physiology</topic><topic>Biomechanical Phenomena</topic><topic>Female</topic><topic>Humans</topic><topic>Knee Joint - physiology</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Running - physiology</topic><topic>Weight-Bearing</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Goss, Donald Lee</creatorcontrib><creatorcontrib>Gross, Michael T</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>The journal of orthopaedic and sports physical therapy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Goss, Donald Lee</au><au>Gross, Michael T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A comparison of negative joint work and vertical ground reaction force loading rates in Chi runners and rearfoot-striking runners</atitle><jtitle>The journal of orthopaedic and sports physical therapy</jtitle><addtitle>J Orthop Sports Phys Ther</addtitle><date>2013-10-01</date><risdate>2013</risdate><volume>43</volume><issue>10</issue><spage>685</spage><epage>692</epage><pages>685-692</pages><issn>0190-6011</issn><eissn>1938-1344</eissn><abstract>Observational.
To compare lower extremity negative joint work and vertical ground reaction force loading rates in rearfoot-striking (RS) and Chi runners.
Alternative running styles such as Chi running have become a popular alternative to RS running. Proponents assert that this running style reduces knee joint loading and ground reaction force loading rates.
Twenty-two RS and 12 Chi runners ran for 5 minutes at a self-selected speed on an instrumented treadmill. A 3-D motion analysis system was used to obtain kinematic data. Average vertical ground reaction force loading rate and negative work of the ankle dorsiflexors, ankle plantar flexors, and knee extensors were computed during the stance phase. Groups were compared using a 1-way analysis of covariance for each variable, with running speed and age as covariates.
On average, RS runners demonstrated greater knee extensor negative work (RS, -0.332 J/body height × body weight [BH·BW]; Chi, -0.144 J/BH·BW; P<.001), whereas Chi runners demonstrated more ankle plantar flexor negative work (Chi, -0.467 J/BH·BW; RS, -0.315 J/BH·BW; P<.001). RS runners demonstrated greater average vertical ground reaction force loading rates than Chi runners (RS, 68.6 BW/s; Chi, 43.1 BW/s; P<.001).
Chi running may reduce vertical loading rates and knee extensor work, but may increase work of the ankle plantar flexors.</abstract><cop>United States</cop><pmid>24256170</pmid><doi>10.2519/jospt.2013.4542</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0190-6011 |
| ispartof | The journal of orthopaedic and sports physical therapy, 2013-10, Vol.43 (10), p.685-692 |
| issn | 0190-6011 1938-1344 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1461342424 |
| source | MEDLINE; Journals@Ovid Complete; EZB-FREE-00999 freely available EZB journals |
| subjects | Adult Ankle Joint - physiology Biomechanical Phenomena Female Humans Knee Joint - physiology Male Middle Aged Running - physiology Weight-Bearing Young Adult |
| title | A comparison of negative joint work and vertical ground reaction force loading rates in Chi runners and rearfoot-striking runners |
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