Resist-and-release sprint running using parachute towing causes detrimental changes to performance, kinematics, and kinetics
Resist-and-release (RAR) using parachute towing (PT) describes running while towing a parachute to apply resistance, before releasing the parachute and continuing to sprint. The release instant is typically performed manually via pulling a Velcro strap, and may influence sprint characteristics. The...
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| Veröffentlicht in: | Journal of Physical Education and Sport 2020-12, Vol.20 (6), p.3411-3419 |
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| creator | Gleadhill, Sam Kai, Tomohiro Nagahara, Ryu |
| description | Resist-and-release (RAR) using parachute towing (PT) describes running while towing a parachute to apply resistance, before releasing the parachute and continuing to sprint. The release instant is typically performed manually via pulling a Velcro strap, and may influence sprint characteristics. The purpose of this study was to clarify performance, kinematic and kinetic changes due to RAR during sprinting using PT. Ten university club athletes performed 60 m RAR trials using PT over a long force platform system. Paired t-tests, significance set to P < .010, and effect sizes ±95% confidence intervals were calculated to compare sprint characteristics between steps before verse after releasing resistance within RAR trials (five pairs). Main findings showed non-significant (P = .015, P = .040) trivial running speed changes for the 1st-2nd steps before and after releasing resistance, compared to the 3rd-4th steps before release. Step length demonstrated non-significant (P = .752) trivial changes for the 1st-2nd steps after releasing resistance, compared to the 3rd-4th steps before release. Step frequency had a significant (P < .001) moderate decrease at the 1st-2nd steps before release, compared to the 3rd-4th steps before release. Anteroposterior net impulse demonstrated significantly (P < .001) large decreases for all steps after release, compared to the 3rd-4th steps before release. Taken together, results suggested that detrimental changes to sprint characteristics occurred at the 1st-2nd steps before or after manually releasing resistance within RAR trials using PT. Recommendations for sprint coaches included avoiding manual release RAR using PT or being wary of these possible detrimental sprint characteristic changes during the two steps before and/or after the release instant. |
| doi_str_mv | 10.7752/jpes.2020.06461 |
| format | Article |
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The release instant is typically performed manually via pulling a Velcro strap, and may influence sprint characteristics. The purpose of this study was to clarify performance, kinematic and kinetic changes due to RAR during sprinting using PT. Ten university club athletes performed 60 m RAR trials using PT over a long force platform system. Paired t-tests, significance set to P < .010, and effect sizes ±95% confidence intervals were calculated to compare sprint characteristics between steps before verse after releasing resistance within RAR trials (five pairs). Main findings showed non-significant (P = .015, P = .040) trivial running speed changes for the 1st-2nd steps before and after releasing resistance, compared to the 3rd-4th steps before release. Step length demonstrated non-significant (P = .752) trivial changes for the 1st-2nd steps after releasing resistance, compared to the 3rd-4th steps before release. Step frequency had a significant (P < .001) moderate decrease at the 1st-2nd steps before release, compared to the 3rd-4th steps before release. Anteroposterior net impulse demonstrated significantly (P < .001) large decreases for all steps after release, compared to the 3rd-4th steps before release. Taken together, results suggested that detrimental changes to sprint characteristics occurred at the 1st-2nd steps before or after manually releasing resistance within RAR trials using PT. Recommendations for sprint coaches included avoiding manual release RAR using PT or being wary of these possible detrimental sprint characteristic changes during the two steps before and/or after the release instant.</description><identifier>ISSN: 2247-8051</identifier><identifier>EISSN: 2247-806X</identifier><identifier>DOI: 10.7752/jpes.2020.06461</identifier><language>eng</language><publisher>Pitesti: Universitatea din Pitesti</publisher><subject>Athletes ; Baseball ; Body Composition ; Coaches & managers ; Effect Size ; Kinematics ; Kinetics ; Methods ; Statistical Analysis ; Teaching Methods ; Team Sports</subject><ispartof>Journal of Physical Education and Sport, 2020-12, Vol.20 (6), p.3411-3419</ispartof><rights>2020. This work is published under https://creativecommons.org/licenses/by-nc-nd/3.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c144t-ef4004d68ea093ab5f649cd4fc778d041fc456b017ddce09d5808925ab569c233</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Gleadhill, Sam</creatorcontrib><creatorcontrib>Kai, Tomohiro</creatorcontrib><creatorcontrib>Nagahara, Ryu</creatorcontrib><title>Resist-and-release sprint running using parachute towing causes detrimental changes to performance, kinematics, and kinetics</title><title>Journal of Physical Education and Sport</title><description>Resist-and-release (RAR) using parachute towing (PT) describes running while towing a parachute to apply resistance, before releasing the parachute and continuing to sprint. The release instant is typically performed manually via pulling a Velcro strap, and may influence sprint characteristics. The purpose of this study was to clarify performance, kinematic and kinetic changes due to RAR during sprinting using PT. Ten university club athletes performed 60 m RAR trials using PT over a long force platform system. Paired t-tests, significance set to P < .010, and effect sizes ±95% confidence intervals were calculated to compare sprint characteristics between steps before verse after releasing resistance within RAR trials (five pairs). Main findings showed non-significant (P = .015, P = .040) trivial running speed changes for the 1st-2nd steps before and after releasing resistance, compared to the 3rd-4th steps before release. Step length demonstrated non-significant (P = .752) trivial changes for the 1st-2nd steps after releasing resistance, compared to the 3rd-4th steps before release. Step frequency had a significant (P < .001) moderate decrease at the 1st-2nd steps before release, compared to the 3rd-4th steps before release. Anteroposterior net impulse demonstrated significantly (P < .001) large decreases for all steps after release, compared to the 3rd-4th steps before release. Taken together, results suggested that detrimental changes to sprint characteristics occurred at the 1st-2nd steps before or after manually releasing resistance within RAR trials using PT. Recommendations for sprint coaches included avoiding manual release RAR using PT or being wary of these possible detrimental sprint characteristic changes during the two steps before and/or after the release instant.</description><subject>Athletes</subject><subject>Baseball</subject><subject>Body Composition</subject><subject>Coaches & managers</subject><subject>Effect Size</subject><subject>Kinematics</subject><subject>Kinetics</subject><subject>Methods</subject><subject>Statistical Analysis</subject><subject>Teaching Methods</subject><subject>Team Sports</subject><issn>2247-8051</issn><issn>2247-806X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNo9TUtLAzEYDKJgqT17DXjtrl_eu0cpvqAgiIK3kibftlvb7Jpk8eKPd6viZV4MM4RcMiiNUfx612MqOXAoQUvNTsiEc2mKCvTb6b9W7JzMUtoBAAOhhKgn5OsZU5tyYYMvIu7RJqSpj23INA4htGFDh3TE3kbrtkNGmrvPY-DskDBRjzm2BwzZ7qnb2rAZs9zRHmPTxYMNDuf0vQ14sLl1aU7Hox9_dBfkrLH7hLM_npLXu9uXxUOxfLp_XNwsC8ekzAU2EkB6XaGFWti1arSsnZeNM6byIFnjpNJrYMZ7h1B7VUFVczU2de24EFNy9bvbx-5jwJRXu26IYbxccVkpZbTRtfgG2zhjyA</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Gleadhill, Sam</creator><creator>Kai, Tomohiro</creator><creator>Nagahara, Ryu</creator><general>Universitatea din Pitesti</general><scope>0-V</scope><scope>3V.</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88B</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ALSLI</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BYOGL</scope><scope>CCPQU</scope><scope>CJNVE</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>K9-</scope><scope>K9.</scope><scope>M0P</scope><scope>M0R</scope><scope>M0S</scope><scope>PIMPY</scope><scope>PQEDU</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope></search><sort><creationdate>20201201</creationdate><title>Resist-and-release sprint running using parachute towing causes detrimental changes to performance, kinematics, and kinetics</title><author>Gleadhill, Sam ; Kai, Tomohiro ; Nagahara, Ryu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c144t-ef4004d68ea093ab5f649cd4fc778d041fc456b017ddce09d5808925ab569c233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Athletes</topic><topic>Baseball</topic><topic>Body Composition</topic><topic>Coaches & managers</topic><topic>Effect Size</topic><topic>Kinematics</topic><topic>Kinetics</topic><topic>Methods</topic><topic>Statistical Analysis</topic><topic>Teaching Methods</topic><topic>Team Sports</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gleadhill, Sam</creatorcontrib><creatorcontrib>Kai, Tomohiro</creatorcontrib><creatorcontrib>Nagahara, Ryu</creatorcontrib><collection>ProQuest Social Sciences Premium Collection</collection><collection>ProQuest Central (Corporate)</collection><collection>Physical Education Index</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Education Database (Alumni Edition)</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Social Science Premium Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>East Europe, Central Europe Database</collection><collection>ProQuest One Community College</collection><collection>Education Collection</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Consumer Health Database (Alumni Edition)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Education Database</collection><collection>Consumer Health Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Education</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><jtitle>Journal of Physical Education and Sport</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gleadhill, Sam</au><au>Kai, Tomohiro</au><au>Nagahara, Ryu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Resist-and-release sprint running using parachute towing causes detrimental changes to performance, kinematics, and kinetics</atitle><jtitle>Journal of Physical Education and Sport</jtitle><date>2020-12-01</date><risdate>2020</risdate><volume>20</volume><issue>6</issue><spage>3411</spage><epage>3419</epage><pages>3411-3419</pages><issn>2247-8051</issn><eissn>2247-806X</eissn><abstract>Resist-and-release (RAR) using parachute towing (PT) describes running while towing a parachute to apply resistance, before releasing the parachute and continuing to sprint. The release instant is typically performed manually via pulling a Velcro strap, and may influence sprint characteristics. The purpose of this study was to clarify performance, kinematic and kinetic changes due to RAR during sprinting using PT. Ten university club athletes performed 60 m RAR trials using PT over a long force platform system. Paired t-tests, significance set to P < .010, and effect sizes ±95% confidence intervals were calculated to compare sprint characteristics between steps before verse after releasing resistance within RAR trials (five pairs). Main findings showed non-significant (P = .015, P = .040) trivial running speed changes for the 1st-2nd steps before and after releasing resistance, compared to the 3rd-4th steps before release. Step length demonstrated non-significant (P = .752) trivial changes for the 1st-2nd steps after releasing resistance, compared to the 3rd-4th steps before release. Step frequency had a significant (P < .001) moderate decrease at the 1st-2nd steps before release, compared to the 3rd-4th steps before release. Anteroposterior net impulse demonstrated significantly (P < .001) large decreases for all steps after release, compared to the 3rd-4th steps before release. Taken together, results suggested that detrimental changes to sprint characteristics occurred at the 1st-2nd steps before or after manually releasing resistance within RAR trials using PT. Recommendations for sprint coaches included avoiding manual release RAR using PT or being wary of these possible detrimental sprint characteristic changes during the two steps before and/or after the release instant.</abstract><cop>Pitesti</cop><pub>Universitatea din Pitesti</pub><doi>10.7752/jpes.2020.06461</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Athletes Baseball Body Composition Coaches & managers Effect Size Kinematics Kinetics Methods Statistical Analysis Teaching Methods Team Sports |
| title | Resist-and-release sprint running using parachute towing causes detrimental changes to performance, kinematics, and kinetics |
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