Muscle activation of the lumbar and hip extensors during the hyperextension and reverse hyperextension exercises

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dc.contributor.advisor Dugan, Eric L. en_US
dc.contributor.author Lothery, Natasha D. en_US
dc.date.accessioned 2011-06-03T19:40:15Z
dc.date.available 2011-06-03T19:40:15Z
dc.date.created 2004 en_US
dc.date.issued 2004
dc.identifier LD2489.Z78 2004 .L68 en_US
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/handle/187783
dc.description.abstract The purpose of this study was to investigate the differences in muscle activity of the lumbar and pelvic extensor muscles during the hyperextension and reverse hyperextension exercises. Fifteen healthy and weight-trained volunteers (8 women, 7 men) were recruited from a university setting. Electromyographic (EMG) activity of selected hip and trunk extensor muscles was recorded during the execution of a hyperextension and a reverse hyperextension. Three muscles were analyzed: lumbar erector spinae (ES), biceps femoris (BF) and gluteus maximus (GM). The amount of external load used by each individual was determined by equating the amount of torque produced at the hip joint for both exercises. Participants performed two trials of each exercise, and completed at least three repetitions within the eight-second data collection period. Peak integrated EMG (iEMG) activity was expressed as a percentage of maximal voluntary isometric contraction (%MVC). A two-way repeated measures analysis of variance (ANOVA) failed to demonstrate significant differences in %MVC activity between the two exercises, (p>0.05). A comparison of the hyperextension and reverse hyperextension exercises revealed that under similar loading conditions, there is no significant difference in muscle activity of the lumbar and hip extensor muscles.
dc.description.sponsorship School of Physical Education
dc.format.extent xi, 83 leaves : ill. ; 28 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Lumbosacral region -- Muscles. en_US
dc.subject.lcsh Pelvis -- Muscles. en_US
dc.subject.lcsh Exercise. en_US
dc.title Muscle activation of the lumbar and hip extensors during the hyperextension and reverse hyperextension exercises en_US
dc.description.degree Thesis (M.S.)
dc.identifier.cardcat-url http://liblink.bsu.edu/catkey/1306854 en_US


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  • Master's Theses [5510]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

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