{"id":2646,"date":"2017-01-01T12:02:48","date_gmt":"2017-01-01T11:02:48","guid":{"rendered":"http:\/\/www.mapeisport.it\/attivita-scientifica\/quantitative-elastosonography-of-the-myotendinous-junction-normal-behavior-and-correlation-with-standard-measurement-system-during-functional-tests\/"},"modified":"2023-03-13T16:52:52","modified_gmt":"2023-03-13T15:52:52","slug":"quantitative-elastosonography-of-the-myotendinous-junction-normal-behavior-and-correlation-with-standard-measurement-system-during-functional-tests","status":"publish","type":"attivita-scientifica","link":"https:\/\/www.mapeisport.it\/en\/attivita-scientifica\/quantitative-elastosonography-of-the-myotendinous-junction-normal-behavior-and-correlation-with-standard-measurement-system-during-functional-tests\/","title":{"rendered":"Quantitative Elastosonography of the Myotendinous Junction: Normal Behavior and Correlation With a Standard Measurement System During Functional Tests."},"content":{"rendered":"<p style=\"text-align: justify;\">Minafra P<sup>1<\/sup>, Bortolotto C<sup>1<\/sup>, Rampinini E<sup>2<\/sup>, Calliada F<sup>1<\/sup>, Monetti G<sup>3<\/sup>.<\/p>\n<p style=\"text-align: justify;\">1, Department of Radiology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy; 2, Mapei Sport Research Center, Olgiate Olona, Italy; 3, Nigrisoli Hospital, Bologna, Italy.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8726\" src=\"http:\/\/www.mapeisport.it\/wp-content\/uploads\/2017\/01\/JUM.jpg\" alt=\"\" width=\"633\" height=\"112\" \/><\/p>\n<p style=\"text-align: justify;\">In recent years, an increasing need to use imaging to assess normal and adaptive muscle function, in addition to its anatomy and structure, has emerged. We evaluated the myotendinous junction&#8217;s elastosonographic behavior in light of the most recent literature on its physiologic behavior. The elastosonographic studies were compared with the results obtained from a standard measurement system to ensure a correlation with maximal muscle contraction. <strong>METHODS<\/strong>: Nineteen male professional soccer players were assessed during functional tests. The participants performed 5 repetitions at 60\u00b0\/s to assess muscle strength and 3 repetitions at 30\u00b0\/s to assess the maximum force peak of thigh muscles. The participants were monitored by a strength-power measurement system and an ultrasound machine equipped with multifrequency (18-6-MHz) linear array transducers. <strong>RESULTS: <\/strong>The 19 soccer players were aged between 19 and 34 years (mean age, 28 years). For the right rectus femoris, the results of the elastosonographic studies showed a mean elasticity value\u2009\u00b1\u2009SD of 30.75%\u2009\u00b1\u200910.05% with the muscle relaxed and a value of 13.75%\u2009\u00b1\u20098.44% during contraction (mean decrease, 17.00%\u2009\u00b1\u200911.71%). Elasticity values were 36.48%\u2009\u00b1\u20098.39% before contraction and 8.77%\u2009\u00b1\u20096.55% during contraction of the left rectus femoris muscle (mean decrease, 27.71%\u2009\u00b1\u200911.95%). For 30\u00b0 eccentric contraction of the left leg, correlation with the standard measurement system showed Pearson r values of -0.53 and -0.51 when comparing force peak and mean work, respectively, with elasticity values. <strong>CONCLUSIONS: <\/strong>Our study shows that strain elastosonographic quantification of muscle elasticity seems to match the expected physiologic and biomechanical behavior of the myotendinous junction.<\/p>\n<p style=\"text-align: justify;\">J Ultrasound Med. 2017 Jan;36(1):141-147. <span class=\"id-label\">PMID:\u00a0<\/span><strong class=\"current-id\" title=\"PubMed ID\">27925702\u00a0 \u00a0 <\/strong><span class=\"id-label\">DOI: <\/span><a class=\"id-link\" href=\"https:\/\/doi.org\/10.7863\/ultra.15.11023\" target=\"_blank\" rel=\"noopener\" data-ga-category=\"full_text\" data-ga-action=\"DOI\">10.7863\/ultra.15.11023<\/a><\/p>\n","protected":false},"featured_media":8731,"template":"","categories":[858,862,863],"tags":[681,682,197,683,684,685,686],"class_list":["post-2646","attivita-scientifica","type-attivita-scientifica","status-publish","has-post-thumbnail","hentry","category-calcio-en","category-monitoring-en","category-soccer-3-en","tag-elasticity-en","tag-elasticity-imaging-techniques-en","tag-ermanno-rampinini-en","tag-isokinetic-test-en","tag-muscles-en","tag-musculoskeletal-ultrasound-en","tag-strain-elastosonography-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Quantitative Elastosonography of the Myotendinous Junction: Normal Behavior and Correlation With a Standard Measurement System During Functional Tests. - Mapei Sport<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mapeisport.it\/en\/attivita-scientifica\/quantitative-elastosonography-of-the-myotendinous-junction-normal-behavior-and-correlation-with-standard-measurement-system-during-functional-tests\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quantitative Elastosonography of the Myotendinous Junction: Normal Behavior and Correlation With a Standard Measurement System During Functional Tests. - Mapei Sport\" \/>\n<meta property=\"og:description\" content=\"Minafra P1, Bortolotto C1, Rampinini E2, Calliada F1, Monetti G3. 1, Department of Radiology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy; 2, Mapei Sport Research Center, Olgiate Olona, Italy; 3, Nigrisoli Hospital, Bologna, Italy. 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