Comparison of prolonged low-frequency force depression assessed using isometric torque and isotonic power following a dynamic fatiguing task
Purpose Prolonged low-frequency force depression (PLFFD) occurs following both dynamic and static fatiguing tasks, but it has been assessed predominately using measures of isometric torque. However, it is unknown whether PLFFD induced during dynamic tasks is adequately characterized by isometric tor...
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| Veröffentlicht in: | European journal of applied physiology 2022-12, Vol.122 (12), p.2597-2606 |
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| creator | Paris, Michael T. Zero, Alexander M. Rice, Charles L. |
| description | Purpose
Prolonged low-frequency force depression (PLFFD) occurs following both dynamic and static fatiguing tasks, but it has been assessed predominately using measures of isometric torque. However, it is unknown whether PLFFD induced during dynamic tasks is adequately characterized by isometric torque, which excludes velocity and power. The purpose of this study was to compare PLFFD assessed using isometric torque and isotonic power following a concentric fatiguing task.
Methods
Young (18–31 years) males (
n
= 9) and females (
n
= 4) performed isotonic plantar flexion contractions until a ~ 75% reduction in peak power. Isotonic and isometric contractions were electrically evoked at 10 Hz and 50 Hz via tibial nerve stimulation. Isotonic and isometric PLFFD was assessed as the ratio of 10 to 50 Hz for power and torque, respectively. Recovery was assessed immediately, and at 2.5, 5, 10, 20, and 30 min after task termination.
Results
Relative to baseline, 10:50 Hz ratio assessed using isotonic power was reduced more than isometric torque (30 min 41 ± 17 vs. 25 ± 12% reduction,
p
= 0.001); however, both contraction modes displayed similar trajectories throughout recovery (
p
= 0.906). The larger reduction in isotonic 10:50 Hz ratio was due to greater impairments in 10 Hz power compared to 10 Hz isometric torque (30 min 38 ± 20 vs. 21 ± 11% reduction,
p
|
| doi_str_mv | 10.1007/s00421-022-05042-x |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2714062583</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2729283667</sourcerecordid><originalsourceid>FETCH-LOGICAL-c282t-da97198cdbe655a7dd50c627386b48ded938ef3067736ff492f4f525af8cd72f3</originalsourceid><addsrcrecordid>eNp9kUtLxDAUhYso-PwDrgJu3FTzaJN0KYMvENzoOsQmGaptUnNbdP6DP9o7jii4cJXDzXcONzlFcczoGaNUnQOlFWcl5bykNcryfavYY5VoSim42v7RrNkt9gGeKaWaM71XfCzSMNrcQYokBTLm1Ke49I706a0M2b_OPrYrElJuPXF-zB6gQ9YCoEJuhi4uCfoHP-WuJVPK6CE2uvVwShFnY3rzGTN6DF3TlrhVtAPeBDt1y3k9myy8HBY7wfbgj77Pg-Lx6vJhcVPe3V_fLi7uypZrPpXONoo1unVPXta1Vc7VtJVcCS2fKu28a4T2QVCplJAhVA0PVah5bQN6FA_ioDjd5OJzcVmYzNBB6_veRp9mMFyxikpea4HoyR_0Oc054nZI8YZrIaVCim-oNieA7IMZczfYvDKMmnVBZlOQwYLMV0HmHU1iYwKE8c_zb_Q_rk_5qJeb</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2729283667</pqid></control><display><type>article</type><title>Comparison of prolonged low-frequency force depression assessed using isometric torque and isotonic power following a dynamic fatiguing task</title><source>SpringerLink Journals - AutoHoldings</source><creator>Paris, Michael T. ; Zero, Alexander M. ; Rice, Charles L.</creator><creatorcontrib>Paris, Michael T. ; Zero, Alexander M. ; Rice, Charles L.</creatorcontrib><description>Purpose
Prolonged low-frequency force depression (PLFFD) occurs following both dynamic and static fatiguing tasks, but it has been assessed predominately using measures of isometric torque. However, it is unknown whether PLFFD induced during dynamic tasks is adequately characterized by isometric torque, which excludes velocity and power. The purpose of this study was to compare PLFFD assessed using isometric torque and isotonic power following a concentric fatiguing task.
Methods
Young (18–31 years) males (
n
= 9) and females (
n
= 4) performed isotonic plantar flexion contractions until a ~ 75% reduction in peak power. Isotonic and isometric contractions were electrically evoked at 10 Hz and 50 Hz via tibial nerve stimulation. Isotonic and isometric PLFFD was assessed as the ratio of 10 to 50 Hz for power and torque, respectively. Recovery was assessed immediately, and at 2.5, 5, 10, 20, and 30 min after task termination.
Results
Relative to baseline, 10:50 Hz ratio assessed using isotonic power was reduced more than isometric torque (30 min 41 ± 17 vs. 25 ± 12% reduction,
p
= 0.001); however, both contraction modes displayed similar trajectories throughout recovery (
p
= 0.906). The larger reduction in isotonic 10:50 Hz ratio was due to greater impairments in 10 Hz power compared to 10 Hz isometric torque (30 min 38 ± 20 vs. 21 ± 11% reduction,
p
< 0.001).
Conclusion
The similar trajectories of 10:50 Hz ratios throughout recovery indicate that PLFFD can be adequately characterized using either isometric torque or isotonic power.</description><identifier>ISSN: 1439-6319</identifier><identifier>EISSN: 1439-6327</identifier><identifier>DOI: 10.1007/s00421-022-05042-x</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Ankle ; Biomedical and Life Sciences ; Biomedicine ; Human Physiology ; Isometric ; Metabolism ; Occupational Medicine/Industrial Medicine ; Original Article ; Physiology ; Plantar flexion ; Range of motion ; Sports Medicine ; Tibial nerve ; Variance analysis ; Velocity</subject><ispartof>European journal of applied physiology, 2022-12, Vol.122 (12), p.2597-2606</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c282t-da97198cdbe655a7dd50c627386b48ded938ef3067736ff492f4f525af8cd72f3</citedby><cites>FETCH-LOGICAL-c282t-da97198cdbe655a7dd50c627386b48ded938ef3067736ff492f4f525af8cd72f3</cites><orcidid>0000-0002-3614-962X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00421-022-05042-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00421-022-05042-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Paris, Michael T.</creatorcontrib><creatorcontrib>Zero, Alexander M.</creatorcontrib><creatorcontrib>Rice, Charles L.</creatorcontrib><title>Comparison of prolonged low-frequency force depression assessed using isometric torque and isotonic power following a dynamic fatiguing task</title><title>European journal of applied physiology</title><addtitle>Eur J Appl Physiol</addtitle><description>Purpose
Prolonged low-frequency force depression (PLFFD) occurs following both dynamic and static fatiguing tasks, but it has been assessed predominately using measures of isometric torque. However, it is unknown whether PLFFD induced during dynamic tasks is adequately characterized by isometric torque, which excludes velocity and power. The purpose of this study was to compare PLFFD assessed using isometric torque and isotonic power following a concentric fatiguing task.
Methods
Young (18–31 years) males (
n
= 9) and females (
n
= 4) performed isotonic plantar flexion contractions until a ~ 75% reduction in peak power. Isotonic and isometric contractions were electrically evoked at 10 Hz and 50 Hz via tibial nerve stimulation. Isotonic and isometric PLFFD was assessed as the ratio of 10 to 50 Hz for power and torque, respectively. Recovery was assessed immediately, and at 2.5, 5, 10, 20, and 30 min after task termination.
Results
Relative to baseline, 10:50 Hz ratio assessed using isotonic power was reduced more than isometric torque (30 min 41 ± 17 vs. 25 ± 12% reduction,
p
= 0.001); however, both contraction modes displayed similar trajectories throughout recovery (
p
= 0.906). The larger reduction in isotonic 10:50 Hz ratio was due to greater impairments in 10 Hz power compared to 10 Hz isometric torque (30 min 38 ± 20 vs. 21 ± 11% reduction,
p
< 0.001).
Conclusion
The similar trajectories of 10:50 Hz ratios throughout recovery indicate that PLFFD can be adequately characterized using either isometric torque or isotonic power.</description><subject>Ankle</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Human Physiology</subject><subject>Isometric</subject><subject>Metabolism</subject><subject>Occupational Medicine/Industrial Medicine</subject><subject>Original Article</subject><subject>Physiology</subject><subject>Plantar flexion</subject><subject>Range of motion</subject><subject>Sports Medicine</subject><subject>Tibial nerve</subject><subject>Variance analysis</subject><subject>Velocity</subject><issn>1439-6319</issn><issn>1439-6327</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kUtLxDAUhYso-PwDrgJu3FTzaJN0KYMvENzoOsQmGaptUnNbdP6DP9o7jii4cJXDzXcONzlFcczoGaNUnQOlFWcl5bykNcryfavYY5VoSim42v7RrNkt9gGeKaWaM71XfCzSMNrcQYokBTLm1Ke49I706a0M2b_OPrYrElJuPXF-zB6gQ9YCoEJuhi4uCfoHP-WuJVPK6CE2uvVwShFnY3rzGTN6DF3TlrhVtAPeBDt1y3k9myy8HBY7wfbgj77Pg-Lx6vJhcVPe3V_fLi7uypZrPpXONoo1unVPXta1Vc7VtJVcCS2fKu28a4T2QVCplJAhVA0PVah5bQN6FA_ioDjd5OJzcVmYzNBB6_veRp9mMFyxikpea4HoyR_0Oc054nZI8YZrIaVCim-oNieA7IMZczfYvDKMmnVBZlOQwYLMV0HmHU1iYwKE8c_zb_Q_rk_5qJeb</recordid><startdate>20221201</startdate><enddate>20221201</enddate><creator>Paris, Michael T.</creator><creator>Zero, Alexander M.</creator><creator>Rice, Charles L.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-3614-962X</orcidid></search><sort><creationdate>20221201</creationdate><title>Comparison of prolonged low-frequency force depression assessed using isometric torque and isotonic power following a dynamic fatiguing task</title><author>Paris, Michael T. ; Zero, Alexander M. ; Rice, Charles L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c282t-da97198cdbe655a7dd50c627386b48ded938ef3067736ff492f4f525af8cd72f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Ankle</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Human Physiology</topic><topic>Isometric</topic><topic>Metabolism</topic><topic>Occupational Medicine/Industrial Medicine</topic><topic>Original Article</topic><topic>Physiology</topic><topic>Plantar flexion</topic><topic>Range of motion</topic><topic>Sports Medicine</topic><topic>Tibial nerve</topic><topic>Variance analysis</topic><topic>Velocity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Paris, Michael T.</creatorcontrib><creatorcontrib>Zero, Alexander M.</creatorcontrib><creatorcontrib>Rice, Charles L.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing & Allied Health Database</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</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>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</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>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Biological Science Database</collection><collection>Nursing & Allied Health Premium</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>MEDLINE - Academic</collection><jtitle>European journal of applied physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Paris, Michael T.</au><au>Zero, Alexander M.</au><au>Rice, Charles L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of prolonged low-frequency force depression assessed using isometric torque and isotonic power following a dynamic fatiguing task</atitle><jtitle>European journal of applied physiology</jtitle><stitle>Eur J Appl Physiol</stitle><date>2022-12-01</date><risdate>2022</risdate><volume>122</volume><issue>12</issue><spage>2597</spage><epage>2606</epage><pages>2597-2606</pages><issn>1439-6319</issn><eissn>1439-6327</eissn><abstract>Purpose
Prolonged low-frequency force depression (PLFFD) occurs following both dynamic and static fatiguing tasks, but it has been assessed predominately using measures of isometric torque. However, it is unknown whether PLFFD induced during dynamic tasks is adequately characterized by isometric torque, which excludes velocity and power. The purpose of this study was to compare PLFFD assessed using isometric torque and isotonic power following a concentric fatiguing task.
Methods
Young (18–31 years) males (
n
= 9) and females (
n
= 4) performed isotonic plantar flexion contractions until a ~ 75% reduction in peak power. Isotonic and isometric contractions were electrically evoked at 10 Hz and 50 Hz via tibial nerve stimulation. Isotonic and isometric PLFFD was assessed as the ratio of 10 to 50 Hz for power and torque, respectively. Recovery was assessed immediately, and at 2.5, 5, 10, 20, and 30 min after task termination.
Results
Relative to baseline, 10:50 Hz ratio assessed using isotonic power was reduced more than isometric torque (30 min 41 ± 17 vs. 25 ± 12% reduction,
p
= 0.001); however, both contraction modes displayed similar trajectories throughout recovery (
p
= 0.906). The larger reduction in isotonic 10:50 Hz ratio was due to greater impairments in 10 Hz power compared to 10 Hz isometric torque (30 min 38 ± 20 vs. 21 ± 11% reduction,
p
< 0.001).
Conclusion
The similar trajectories of 10:50 Hz ratios throughout recovery indicate that PLFFD can be adequately characterized using either isometric torque or isotonic power.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00421-022-05042-x</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-3614-962X</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1439-6319 |
| ispartof | European journal of applied physiology, 2022-12, Vol.122 (12), p.2597-2606 |
| issn | 1439-6319 1439-6327 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2714062583 |
| source | SpringerLink Journals - AutoHoldings |
| subjects | Ankle Biomedical and Life Sciences Biomedicine Human Physiology Isometric Metabolism Occupational Medicine/Industrial Medicine Original Article Physiology Plantar flexion Range of motion Sports Medicine Tibial nerve Variance analysis Velocity |
| title | Comparison of prolonged low-frequency force depression assessed using isometric torque and isotonic power following a dynamic fatiguing task |
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