Dynamic properties of the inferior rectus, extensor digitorum longus, diaphragm and soleus muscles of the mouse
1. Isometric responses to direct stimulation of inferior rectus (IR), extensor digitorum longus (EDL) and soleus (SOL) muscles and strips of diaphragm (DIA) muscle of the mouse were obtained. 2. The IR, EDL and DIA were qualitatively 'fast-twitch', while the SOL was 'slow-twitch'...
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| Veröffentlicht in: | The Journal of physiology 1981-01, Vol.313 (1), p.161-171 |
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| creator | Luff, A R |
| description | 1. Isometric responses to direct stimulation of inferior rectus (IR), extensor digitorum longus (EDL) and soleus (SOL) muscles
and strips of diaphragm (DIA) muscle of the mouse were obtained. 2. The IR, EDL and DIA were qualitatively 'fast-twitch',
while the SOL was 'slow-twitch'. The isometric twitch contraction time was for IR, 3.7 ms; EDL, 6.9 ms; DIA, 13.2 ms; SOL,
20.9 ms (at 35 degrees C). Twitch: tetanus ratio for IR was unusually small (0.12) whereas that of DIA was unusually large
(0.31). 3. The force-velocity properties of the muscles were determined and the sarcomere speed of shortening calculated.
The intrinsic speeds of shortening of EDL and IR were not significantly different from each other, and were 49.5 and 51.6
micrometers . s-1 respectively; the value for SOL was 23.1 micrometers . s-1 and the DIA was intermediate at 39.7 micrometers
. s-1. 4. The time course of the isometric twitch of the IR was about half that of the EDL whereas the force-velocity properties
of these two muscles were almost identical. This is very similar to the situation in the rat. 5. Some of the dynamic properties
of the DIA were clearly intermediate between the typical 'fast-twitch' EDL and IR and the typical 'slow-twitch' SOL. This
does not agree with the available histochemical evidence which suggests that the mouse diaphragm is a 'fast-twitch red' muscle. |
| doi_str_mv | 10.1113/jphysiol.1981.sp013656 |
| format | Article |
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and strips of diaphragm (DIA) muscle of the mouse were obtained. 2. The IR, EDL and DIA were qualitatively 'fast-twitch',
while the SOL was 'slow-twitch'. The isometric twitch contraction time was for IR, 3.7 ms; EDL, 6.9 ms; DIA, 13.2 ms; SOL,
20.9 ms (at 35 degrees C). Twitch: tetanus ratio for IR was unusually small (0.12) whereas that of DIA was unusually large
(0.31). 3. The force-velocity properties of the muscles were determined and the sarcomere speed of shortening calculated.
The intrinsic speeds of shortening of EDL and IR were not significantly different from each other, and were 49.5 and 51.6
micrometers . s-1 respectively; the value for SOL was 23.1 micrometers . s-1 and the DIA was intermediate at 39.7 micrometers
. s-1. 4. The time course of the isometric twitch of the IR was about half that of the EDL whereas the force-velocity properties
of these two muscles were almost identical. This is very similar to the situation in the rat. 5. Some of the dynamic properties
of the DIA were clearly intermediate between the typical 'fast-twitch' EDL and IR and the typical 'slow-twitch' SOL. This
does not agree with the available histochemical evidence which suggests that the mouse diaphragm is a 'fast-twitch red' muscle.</description><identifier>ISSN: 0022-3751</identifier><identifier>EISSN: 1469-7793</identifier><identifier>DOI: 10.1113/jphysiol.1981.sp013656</identifier><identifier>PMID: 7277215</identifier><language>eng</language><publisher>England: The Physiological Society</publisher><subject>Animals ; Diaphragm - physiology ; Female ; In Vitro Techniques ; Mice ; Muscle Contraction ; Muscles - cytology ; Muscles - physiology ; Time Factors</subject><ispartof>The Journal of physiology, 1981-01, Vol.313 (1), p.161-171</ispartof><rights>1981 The Physiological Society</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5001-d44c8b8abaa77769cbf4d32277d66357006c21e1c08d59731c3103a0e29c5f403</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC1274442/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC1274442/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,723,776,780,881,1411,27901,27902,45550,45551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/7277215$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Luff, A R</creatorcontrib><title>Dynamic properties of the inferior rectus, extensor digitorum longus, diaphragm and soleus muscles of the mouse</title><title>The Journal of physiology</title><addtitle>J Physiol</addtitle><description>1. Isometric responses to direct stimulation of inferior rectus (IR), extensor digitorum longus (EDL) and soleus (SOL) muscles
and strips of diaphragm (DIA) muscle of the mouse were obtained. 2. The IR, EDL and DIA were qualitatively 'fast-twitch',
while the SOL was 'slow-twitch'. The isometric twitch contraction time was for IR, 3.7 ms; EDL, 6.9 ms; DIA, 13.2 ms; SOL,
20.9 ms (at 35 degrees C). Twitch: tetanus ratio for IR was unusually small (0.12) whereas that of DIA was unusually large
(0.31). 3. The force-velocity properties of the muscles were determined and the sarcomere speed of shortening calculated.
The intrinsic speeds of shortening of EDL and IR were not significantly different from each other, and were 49.5 and 51.6
micrometers . s-1 respectively; the value for SOL was 23.1 micrometers . s-1 and the DIA was intermediate at 39.7 micrometers
. s-1. 4. The time course of the isometric twitch of the IR was about half that of the EDL whereas the force-velocity properties
of these two muscles were almost identical. This is very similar to the situation in the rat. 5. Some of the dynamic properties
of the DIA were clearly intermediate between the typical 'fast-twitch' EDL and IR and the typical 'slow-twitch' SOL. This
does not agree with the available histochemical evidence which suggests that the mouse diaphragm is a 'fast-twitch red' muscle.</description><subject>Animals</subject><subject>Diaphragm - physiology</subject><subject>Female</subject><subject>In Vitro Techniques</subject><subject>Mice</subject><subject>Muscle Contraction</subject><subject>Muscles - cytology</subject><subject>Muscles - physiology</subject><subject>Time Factors</subject><issn>0022-3751</issn><issn>1469-7793</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1981</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkc1u1TAQhS0EKpfCI4C8ohty64kTO9kgQfmtKsGirC1fZ5K4SuJgJy15exzltsAOeWFpzpnPxzqEvAK2BwB-fjO2S7Cu20NZwD6MDLjIxSOyg0yUiZQlf0x2jKVpwmUOT8mzEG5YNLGyPCEnMpUyhXxH3Idl0L01dPRuRD9ZDNTVdGqR2qFGb52nHs00hzcUf004hDiobGMn5-eedm5oVqmyemy9bnqqh4oG1-EcaD8H0_3h9W4O-Jw8qXUX8MXxPiU_Pn28vviSXH37_PXi3VVi8pgyqbLMFIdCH7SWUorSHOqs4mlMXQnBc8mYMCkgGFZUeSk5GA6Ma4ZpafI6Y_yUvN2443zosTI4TF53avS2135RTlv1rzLYVjXuVkEqsyxLI-D1EeDdzxnDpHobDHadHjB-REkueMFEHo1iMxrvQvBYPzwCTK1Vqfuq1FqVuq8qLr78O-LD2rGbqL_f9Dvb4fKfVHV9-X0d8HhAQIScbZDWNu2d9ai2teCMxWlR0adArc7f-b-4RQ</recordid><startdate>19810101</startdate><enddate>19810101</enddate><creator>Luff, A R</creator><general>The Physiological Society</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></search><sort><creationdate>19810101</creationdate><title>Dynamic properties of the inferior rectus, extensor digitorum longus, diaphragm and soleus muscles of the mouse</title><author>Luff, A R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5001-d44c8b8abaa77769cbf4d32277d66357006c21e1c08d59731c3103a0e29c5f403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1981</creationdate><topic>Animals</topic><topic>Diaphragm - physiology</topic><topic>Female</topic><topic>In Vitro Techniques</topic><topic>Mice</topic><topic>Muscle Contraction</topic><topic>Muscles - cytology</topic><topic>Muscles - physiology</topic><topic>Time Factors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Luff, A R</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>The Journal of physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Luff, A R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dynamic properties of the inferior rectus, extensor digitorum longus, diaphragm and soleus muscles of the mouse</atitle><jtitle>The Journal of physiology</jtitle><addtitle>J Physiol</addtitle><date>1981-01-01</date><risdate>1981</risdate><volume>313</volume><issue>1</issue><spage>161</spage><epage>171</epage><pages>161-171</pages><issn>0022-3751</issn><eissn>1469-7793</eissn><abstract>1. Isometric responses to direct stimulation of inferior rectus (IR), extensor digitorum longus (EDL) and soleus (SOL) muscles
and strips of diaphragm (DIA) muscle of the mouse were obtained. 2. The IR, EDL and DIA were qualitatively 'fast-twitch',
while the SOL was 'slow-twitch'. The isometric twitch contraction time was for IR, 3.7 ms; EDL, 6.9 ms; DIA, 13.2 ms; SOL,
20.9 ms (at 35 degrees C). Twitch: tetanus ratio for IR was unusually small (0.12) whereas that of DIA was unusually large
(0.31). 3. The force-velocity properties of the muscles were determined and the sarcomere speed of shortening calculated.
The intrinsic speeds of shortening of EDL and IR were not significantly different from each other, and were 49.5 and 51.6
micrometers . s-1 respectively; the value for SOL was 23.1 micrometers . s-1 and the DIA was intermediate at 39.7 micrometers
. s-1. 4. The time course of the isometric twitch of the IR was about half that of the EDL whereas the force-velocity properties
of these two muscles were almost identical. This is very similar to the situation in the rat. 5. Some of the dynamic properties
of the DIA were clearly intermediate between the typical 'fast-twitch' EDL and IR and the typical 'slow-twitch' SOL. This
does not agree with the available histochemical evidence which suggests that the mouse diaphragm is a 'fast-twitch red' muscle.</abstract><cop>England</cop><pub>The Physiological Society</pub><pmid>7277215</pmid><doi>10.1113/jphysiol.1981.sp013656</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | The Journal of physiology, 1981-01, Vol.313 (1), p.161-171 |
| issn | 0022-3751 1469-7793 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_1274442 |
| source | MEDLINE; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; Alma/SFX Local Collection |
| subjects | Animals Diaphragm - physiology Female In Vitro Techniques Mice Muscle Contraction Muscles - cytology Muscles - physiology Time Factors |
| title | Dynamic properties of the inferior rectus, extensor digitorum longus, diaphragm and soleus muscles of the mouse |
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