{"id":639,"date":"2024-04-16T16:03:03","date_gmt":"2024-04-16T16:03:03","guid":{"rendered":"https:\/\/sites.education.miami.edu\/researchsymposium\/?p=639"},"modified":"2024-04-24T13:45:10","modified_gmt":"2024-04-24T13:45:10","slug":"comparison-of-lower-body-power-outputs-to-muscle-ultrasound-morphology-in-persons-with-parkinsons-disease-639","status":"publish","type":"post","link":"https:\/\/sites.education.miami.edu\/researchsymposium\/2024\/04\/16\/comparison-of-lower-body-power-outputs-to-muscle-ultrasound-morphology-in-persons-with-parkinsons-disease-639\/","title":{"rendered":"9. Comparison of Lower Body Power Outputs to Muscle-Ultrasound Morphology in Persons with Parkinson\u2019s Disease"},"content":{"rendered":"\n<p>Velocity-based training (VBT) is a unique resistance-training technique used by athletes, which utilizes velocity rather than load to dictate progressions. No study has examined the impact of VBT on muscle morphology or lower-limb power.\u00a0<strong>PURPOSE<\/strong>: This study examined correlations between ultrasound-derived muscle morphology and lower-body power in Parkinson\u2019s disease (PD) patients before and after a 10-week VBT program.\u00a0<strong>METHODS<\/strong>: Participants\u2019 data included leg press 1-repetition-maximum (1RM) and peak power (PP) at 40 &#8211; 80%1RM and muscle thickness (MT), echo intensity (EI), and fascicle angle (FA) of the left and right rectus femoris (RF) and vastus lateralis (VL) taken via B-mode ultrasound.\u00a0<strong>RESULTS<\/strong>: At pretest, data from 17 subjects showed significant correlations between MT and PP at 40-80%1RM in all muscles (all p&lt;.05, r >.54) except at 70-80%1RM for the right RF. FA was correlated to PP at 40-80%1RM in the right VL (p&lt;.05, r>.51), and EI in the right RF at 60%1RM (p&lt;.05, r=-.503). At post-testing, MT and PP at 40-80% 1RM were correlated in the right and left VL and left RF (p&lt;.05, r>.56), and between FA and 40-80%1RM power in both VL (p&lt;.02, r>.56). Significant correlations were observed between EI and PP muscles at 40-80%1RM in both VL (p&lt;.05, r>.54), excluding 50%1RM in the left VL. No significant correlations were found between RF FA and EI and lower body power.\u00a0<strong>CONCLUSION<\/strong>: Improvements in lower PP before and after VBT may be influenced by different morphological variables indicating changes in specific structure-function relationships of PD patients following VBT training.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Velocity-based training (VBT) is a unique resistance-training technique used by athletes, which utilizes velocity rather than load to dictate progressions. No study has examined the impact of VBT on muscle morphology or lower-limb power.\u00a0PURPOSE: This study examined correlations between ultrasound-derived muscle morphology and lower-body power in Parkinson\u2019s disease (PD) patients before and after a 10-week VBT program.\u00a0METHODS: Participants\u2019 data included<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":21,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[10,9],"tags":[],"class_list":["post-639","post","type-post","status-publish","format-standard","hentry","category-2024-graduate","category-2024-poster"],"_links":{"self":[{"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/posts\/639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/comments?post=639"}],"version-history":[{"count":3,"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/posts\/639\/revisions"}],"predecessor-version":[{"id":698,"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/posts\/639\/revisions\/698"}],"wp:attachment":[{"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/media?parent=639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/categories?post=639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.education.miami.edu\/researchsymposium\/wp-json\/wp\/v2\/tags?post=639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}