MRI determination of muscle recruitment variations in dynamic ankle plantar flexion exercise
The purpose of this study was to investigate the muscle recruitment variations in the dynamic ankle plantar flexion. A total of 17 subjects participated in this study and performed the ankle plantar flexion exercise. Magnetic resonance T2-weighted images were obtained from the calf before and immedi...
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| Veröffentlicht in: | American journal of physical medicine & rehabilitation 2003-10, Vol.82 (10), p.760-765 |
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| container_title | American journal of physical medicine & rehabilitation |
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| creator | YANAGISAWA, Osamu NIITSU, Mamoru YOSHIOKA, Hiroshi GOTO, Kazushige ITAI, Yuji |
| description | The purpose of this study was to investigate the muscle recruitment variations in the dynamic ankle plantar flexion.
A total of 17 subjects participated in this study and performed the ankle plantar flexion exercise. Magnetic resonance T2-weighted images were obtained from the calf before and immediately after exercise to calculate each T2 relaxation time in the medial and lateral gastrocnemius, soleus, tibialis posterior, flexor digitorum/hallucis longus, peroneus longus, and dorsiflexors.
All the muscles except the dorsiflexors showed significantly increased T2 relaxation time and signal intensity on T2-weighted images after exercise. Above all, both gastrocnemius muscles showed significantly greater postexercise T2 relaxation time than the soleus, tibialis posterior, flexor digitorum/hallucis longus, and dorsiflexors. In addition, the peroneus longus had a tendency to show the greatest T2 relaxation time next to the gastrocnemius, but there was no significant difference between them.
The present study may suggest that the gastrocnemius muscle, especially the medial side, was best recruited in the dynamic ankle plantar flexion exercise. In addition, it is possible that the peroneus longus was most recruited next to the gastrocnemius in this exercise mode. |
| doi_str_mv | 10.1097/01.phm.0000087460.38514.e7 |
| format | Article |
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A total of 17 subjects participated in this study and performed the ankle plantar flexion exercise. Magnetic resonance T2-weighted images were obtained from the calf before and immediately after exercise to calculate each T2 relaxation time in the medial and lateral gastrocnemius, soleus, tibialis posterior, flexor digitorum/hallucis longus, peroneus longus, and dorsiflexors.
All the muscles except the dorsiflexors showed significantly increased T2 relaxation time and signal intensity on T2-weighted images after exercise. Above all, both gastrocnemius muscles showed significantly greater postexercise T2 relaxation time than the soleus, tibialis posterior, flexor digitorum/hallucis longus, and dorsiflexors. In addition, the peroneus longus had a tendency to show the greatest T2 relaxation time next to the gastrocnemius, but there was no significant difference between them.
The present study may suggest that the gastrocnemius muscle, especially the medial side, was best recruited in the dynamic ankle plantar flexion exercise. In addition, it is possible that the peroneus longus was most recruited next to the gastrocnemius in this exercise mode.</description><identifier>ISSN: 0894-9115</identifier><identifier>EISSN: 1537-7385</identifier><identifier>DOI: 10.1097/01.phm.0000087460.38514.e7</identifier><identifier>PMID: 14508406</identifier><language>eng</language><publisher>Baltimore, MD: Lippincott</publisher><subject>Adult ; Ankle - physiology ; Biological and medical sciences ; Exercise - physiology ; Humans ; Investigative techniques, diagnostic techniques (general aspects) ; Magnetic Resonance Imaging - methods ; Medical sciences ; Motor Neurons - physiology ; Muscle, Skeletal - innervation ; Muscle, Skeletal - pathology ; Muscle, Skeletal - physiology ; Osteoarticular system. Muscles ; Radiodiagnosis. Nmr imagery. Nmr spectrometry ; Recruitment, Neurophysiological - physiology</subject><ispartof>American journal of physical medicine & rehabilitation, 2003-10, Vol.82 (10), p.760-765</ispartof><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c442t-4d58e8462f5b477480680e0f9a1d3205bae008c0b82485d91f2d1f8dd6df98ff3</citedby><cites>FETCH-LOGICAL-c442t-4d58e8462f5b477480680e0f9a1d3205bae008c0b82485d91f2d1f8dd6df98ff3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27929,27930</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15161238$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/14508406$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>YANAGISAWA, Osamu</creatorcontrib><creatorcontrib>NIITSU, Mamoru</creatorcontrib><creatorcontrib>YOSHIOKA, Hiroshi</creatorcontrib><creatorcontrib>GOTO, Kazushige</creatorcontrib><creatorcontrib>ITAI, Yuji</creatorcontrib><title>MRI determination of muscle recruitment variations in dynamic ankle plantar flexion exercise</title><title>American journal of physical medicine & rehabilitation</title><addtitle>Am J Phys Med Rehabil</addtitle><description>The purpose of this study was to investigate the muscle recruitment variations in the dynamic ankle plantar flexion.
A total of 17 subjects participated in this study and performed the ankle plantar flexion exercise. Magnetic resonance T2-weighted images were obtained from the calf before and immediately after exercise to calculate each T2 relaxation time in the medial and lateral gastrocnemius, soleus, tibialis posterior, flexor digitorum/hallucis longus, peroneus longus, and dorsiflexors.
All the muscles except the dorsiflexors showed significantly increased T2 relaxation time and signal intensity on T2-weighted images after exercise. Above all, both gastrocnemius muscles showed significantly greater postexercise T2 relaxation time than the soleus, tibialis posterior, flexor digitorum/hallucis longus, and dorsiflexors. In addition, the peroneus longus had a tendency to show the greatest T2 relaxation time next to the gastrocnemius, but there was no significant difference between them.
The present study may suggest that the gastrocnemius muscle, especially the medial side, was best recruited in the dynamic ankle plantar flexion exercise. In addition, it is possible that the peroneus longus was most recruited next to the gastrocnemius in this exercise mode.</description><subject>Adult</subject><subject>Ankle - physiology</subject><subject>Biological and medical sciences</subject><subject>Exercise - physiology</subject><subject>Humans</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Magnetic Resonance Imaging - methods</subject><subject>Medical sciences</subject><subject>Motor Neurons - physiology</subject><subject>Muscle, Skeletal - innervation</subject><subject>Muscle, Skeletal - pathology</subject><subject>Muscle, Skeletal - physiology</subject><subject>Osteoarticular system. Muscles</subject><subject>Radiodiagnosis. Nmr imagery. Nmr spectrometry</subject><subject>Recruitment, Neurophysiological - physiology</subject><issn>0894-9115</issn><issn>1537-7385</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkd9rFDEQx4O02Gv1X5Ag1LfdZjbJJuubHLUttCiib0LIJROM7o8z2S3tf99ce3CPnZeBmc_8_BLyEVgNrFMXDOrtn6FmO9NKtKzmWoKoUb0hK5BcVaoEjsiK6U5UHYA8Iac5_y247Lh6S05ASKYFa1fk992PG-pxxjTE0c5xGukU6LBk1yNN6NIS5wHHmd7bFJ_zmcaR-sfRDtFRO_4r3La342wTDT0-7DrgAyYXM74jx8H2Gd_v_Rn59fXy5_q6uv12dbP-cls5IZq5El5q1KJtgtwIpYRmrWbIQmfB84bJjcVyqGMb3QgtfQeh8RC0960PnQ6Bn5FPL323afq_YJ7NELPDvqyF05KNkgqg4fxVEJTqRMOhgJ9fQJemnBMGs01xsOnRADM7EQwD8_36zhxEMM8imEtVij_spyybAf2hdP_1ApzvAZud7UOyY3nXgZPQlnU1fwKRQ5Fn</recordid><startdate>20031001</startdate><enddate>20031001</enddate><creator>YANAGISAWA, Osamu</creator><creator>NIITSU, Mamoru</creator><creator>YOSHIOKA, Hiroshi</creator><creator>GOTO, Kazushige</creator><creator>ITAI, Yuji</creator><general>Lippincott</general><scope>IQODW</scope><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>7TS</scope><scope>7X8</scope></search><sort><creationdate>20031001</creationdate><title>MRI determination of muscle recruitment variations in dynamic ankle plantar flexion exercise</title><author>YANAGISAWA, Osamu ; NIITSU, Mamoru ; YOSHIOKA, Hiroshi ; GOTO, Kazushige ; ITAI, Yuji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c442t-4d58e8462f5b477480680e0f9a1d3205bae008c0b82485d91f2d1f8dd6df98ff3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Adult</topic><topic>Ankle - physiology</topic><topic>Biological and medical sciences</topic><topic>Exercise - physiology</topic><topic>Humans</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Magnetic Resonance Imaging - methods</topic><topic>Medical sciences</topic><topic>Motor Neurons - physiology</topic><topic>Muscle, Skeletal - innervation</topic><topic>Muscle, Skeletal - pathology</topic><topic>Muscle, Skeletal - physiology</topic><topic>Osteoarticular system. Muscles</topic><topic>Radiodiagnosis. Nmr imagery. Nmr spectrometry</topic><topic>Recruitment, Neurophysiological - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>YANAGISAWA, Osamu</creatorcontrib><creatorcontrib>NIITSU, Mamoru</creatorcontrib><creatorcontrib>YOSHIOKA, Hiroshi</creatorcontrib><creatorcontrib>GOTO, Kazushige</creatorcontrib><creatorcontrib>ITAI, Yuji</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Physical Education Index</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of physical medicine & rehabilitation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>YANAGISAWA, Osamu</au><au>NIITSU, Mamoru</au><au>YOSHIOKA, Hiroshi</au><au>GOTO, Kazushige</au><au>ITAI, Yuji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MRI determination of muscle recruitment variations in dynamic ankle plantar flexion exercise</atitle><jtitle>American journal of physical medicine & rehabilitation</jtitle><addtitle>Am J Phys Med Rehabil</addtitle><date>2003-10-01</date><risdate>2003</risdate><volume>82</volume><issue>10</issue><spage>760</spage><epage>765</epage><pages>760-765</pages><issn>0894-9115</issn><eissn>1537-7385</eissn><abstract>The purpose of this study was to investigate the muscle recruitment variations in the dynamic ankle plantar flexion.
A total of 17 subjects participated in this study and performed the ankle plantar flexion exercise. Magnetic resonance T2-weighted images were obtained from the calf before and immediately after exercise to calculate each T2 relaxation time in the medial and lateral gastrocnemius, soleus, tibialis posterior, flexor digitorum/hallucis longus, peroneus longus, and dorsiflexors.
All the muscles except the dorsiflexors showed significantly increased T2 relaxation time and signal intensity on T2-weighted images after exercise. Above all, both gastrocnemius muscles showed significantly greater postexercise T2 relaxation time than the soleus, tibialis posterior, flexor digitorum/hallucis longus, and dorsiflexors. In addition, the peroneus longus had a tendency to show the greatest T2 relaxation time next to the gastrocnemius, but there was no significant difference between them.
The present study may suggest that the gastrocnemius muscle, especially the medial side, was best recruited in the dynamic ankle plantar flexion exercise. In addition, it is possible that the peroneus longus was most recruited next to the gastrocnemius in this exercise mode.</abstract><cop>Baltimore, MD</cop><pub>Lippincott</pub><pmid>14508406</pmid><doi>10.1097/01.phm.0000087460.38514.e7</doi><tpages>6</tpages></addata></record> |
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| subjects | Adult Ankle - physiology Biological and medical sciences Exercise - physiology Humans Investigative techniques, diagnostic techniques (general aspects) Magnetic Resonance Imaging - methods Medical sciences Motor Neurons - physiology Muscle, Skeletal - innervation Muscle, Skeletal - pathology Muscle, Skeletal - physiology Osteoarticular system. Muscles Radiodiagnosis. Nmr imagery. Nmr spectrometry Recruitment, Neurophysiological - physiology |
| title | MRI determination of muscle recruitment variations in dynamic ankle plantar flexion exercise |
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