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标题：Neural and morphological adaptations of vastus lateralis and vastus medialis muscles to isokinetic eccentric training
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作者：Rodrigo de Azevedo Franke ; Bruno Manfredini Baroni ; Rodrigo Rodrigues 等
期刊名称：Motriz. Journal of Physical Education. UNESP
印刷版ISSN：1980-6574
出版年度：2014
卷号：20
期号：3
页码：317-324
DOI：10.5016/8376
语种：English
出版社：UNESP - São Paulo State University
摘要：Neural and morphological adaptations of vastus lateralis and vastus medialis muscles to isokinetic eccentric training Vastus lateralis (VL) and vastus medialis (VM) are frequently targeted in conditioning/rehabilitation programs due to their role in patellar stabilization during knee extension. This study assessed neural and muscular adaptations in these two muscles after an isokinetic eccentric training program. Twenty healthy men underwent a four-week control period followed by a 12-week period of isokinetic eccentric training. Ultrasound evaluations of VL and VM muscle thickness at rest and electromyographic evaluations during maximal isometric tests were used to assess the morphological and neural properties, respectively. No morphological and neural changes were found throughout the control period, whereas both muscles showed significant increases in thickness (VL = 6.9%; p .05) post-training. Isokinetic eccentric training produces neural and greater morphological adaptations in VM compared to VL, which shows that synergistic muscles respond differently to an eccentric isokinetic strength training program.
其他摘要：Neural and morphological adaptations of vastus lateralis and vastus medialis muscles to isokinetic eccentric training Vastus lateralis (VL) and vastus medialis (VM) are frequently targeted in conditioning/rehabilitation programs due to their role in patellar stabilization during knee extension. This study assessed neural and muscular adaptations in these two muscles after an isokinetic eccentric training program. Twenty healthy men underwent a four-week control period followed by a 12-week period of isokinetic eccentric training. Ultrasound evaluations of VL and VM muscle thickness at rest and electromyographic evaluations during maximal isometric tests were used to assess the morphological and neural properties, respectively. No morphological and neural changes were found throughout the control period, whereas both muscles showed significant increases in thickness (VL = 6.9%; p < .001 and VM = 15.8%; p < .001) posttraining Significant increases in muscle activity were observed in VM (47.8%; p = .003), but not in VL (19.8%; p > .05) post-training. Isokinetic eccentric training produces neural and greater morphological adaptations in VM compared to VL, which shows that synergistic muscles respond differently to an eccentric isokinetic strength training program.
关键词：knee extensors, isokinetic dynamometry, ultrasonography, electromyography;Extensores do joelho. Dinamometria isocinética. Ultrassonografia. Eletromiografia.
其他关键词：knee extensors, isokinetic dynamometry, ultrasonography, electromyography