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The Functional Re\u2010adaptive Exercise Device (<jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content>) has been developed to activate the deep spinal muscles, <jats:italic>lumbar multifidus<\/jats:italic> (<jats:styled-content style=\"fixed-case\">LM<\/jats:styled-content>) and <jats:italic>transversus abdominis<\/jats:italic> (TrA), that provide inter\u2010segmental control and spinal protection. The <jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content> provides an unstable base of support and combines weight bearing in up\u2010right posture with side alternating, elliptical leg movements, without any resistance to movement. The present study investigated the activation of <jats:styled-content style=\"fixed-case\">LM<\/jats:styled-content>, TrA, obliquus externus (<jats:styled-content style=\"fixed-case\">OE<\/jats:styled-content>), obliquus internus (<jats:styled-content style=\"fixed-case\">OI<\/jats:styled-content>), abdominis, and erector spinae (<jats:styled-content style=\"fixed-case\">ES<\/jats:styled-content>) during <jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content> exercise using intramuscular fine\u2010wire and surface <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content>. Nine healthy male volunteers (27\u00a0\u00b1\u00a05\u00a0years) have been recruited for the study. <jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content> exercise was compared with treadmill walking. It was confirmed that <jats:styled-content style=\"fixed-case\">LM<\/jats:styled-content> and TrA were continually active during <jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content> exercise. Compared with walking, <jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content> exercise resulted in similar mean activation of <jats:styled-content style=\"fixed-case\">LM<\/jats:styled-content> and TrA, less activation of <jats:styled-content style=\"fixed-case\">OE<\/jats:styled-content>,<jats:styled-content style=\"fixed-case\"> OI<\/jats:styled-content>,<jats:styled-content style=\"fixed-case\"> ES<\/jats:styled-content>, and greater variability of lumbo\u2010pelvic muscle activation patterns between individual <jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content>\/gait cycles. These data suggest that <jats:styled-content style=\"fixed-case\">FRED<\/jats:styled-content> continuously engages <jats:styled-content style=\"fixed-case\">LM<\/jats:styled-content> and TrA, and therefore, has the potential as a stationary exercise device to train these muscles.<\/jats:p>","DOI":"10.14814\/phy2.13188","type":"journal-article","created":{"date-parts":[[2017,3,21]],"date-time":"2017-03-21T01:40:41Z","timestamp":1490060441000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Trunk muscle activation during movement with a new exercise device for lumbo\u2010pelvic reconditioning"],"prefix":"10.14814","volume":"5","author":[{"given":"Tobias","family":"Weber","sequence":"first","affiliation":[{"name":"European Space Agency European Astronaut Centre Space Medicine Office (HSO\u2010AM) Cologne Germany"},{"name":"KBRWyle GmbH Cologne 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