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|a RC1220.R67 M33 2008_McDonnellLisa |2 BU-Local |
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|a The relationship between lower extremity kinetics, spine flexion, and erector spinae muscle activity in competitive female rowers |h [electronic resource]. |
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|a Miami, Fla. : |b Barry University, |c 2008. |
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|a xi, 94 leaves : |b ills., charts, photographs ; |c 28 cm |
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|a Barry University Theses -- School of Human Performance and Leisure Sciences. |
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|a Thesis (M.S.)--Barry University, 2008. |
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|a Includes bibliographical references (leaves 90-91). |
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|a Copyright Lisa K. McDonnell. Permission granted to Barry University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder. |
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|a Few studies have investigated leg extension power in relation to the characteristics that may predispose a rower to low back injury and how those variables also relate to performance. The purpose of this study was to examine the relationship between leg extension power, spine flexion, back extensor muscle activity, hamstring flexibility, and power output on a rowing ergometer. Twelve female competitive rowers participated in the study. Leg power was measured by a continuous jumping test on a force platform, spine flexion was measured in percentage of maximal flexion during 500-meter maximal effort rows and synchronized with back extensor muscle activity. Hamstring flexibility was also determined by a goniometer and all variables were correlated with a Pearson product correlation, with p < 0.05 to determine statistical significance. Based on significant results, a regression analysis was conducted. Leg extension power measured by the modified bosco test showed a strong positive correlation (p < .001) with ergometer power output. In addition, a significant regression equation was found to determine ergometer power output [y= 26.926 + .052 (leg extension power) W], p <.001). Peak lumbar spine flexion had a moderate positive correlation with leg extension power and ergometer power (p < .01). A multiple regression equation showed that leg extension power and peak lumbar spine flexion were significant predictors of rowing performance (p < .001). The findings show an importance of leg extension power for rowing performance and the need to further investigate its effects on lumbar spine mechanics. |
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|a Electronic reproduction. |c Barry University, |d 2020. |f (Barry University Digital Collections) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Barry University Archives and Special Collections. |
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|a Rowing |x Physiological aspects. |
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|a Women athletes |x Physiology. |
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|a Barry University Digital Collections. |
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|a Theses and Dissertations. |
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|a BUDC |c Theses and Dissertations |
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|u http://sobekcmsrv.barrynet.barry.edu/AA00001621/00001 |y Click here for full text |
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|a https:/budc.barry.edu/content/AA/00/00/16/21/00001/RC1220_R67 M33 2008_McDonnellLisathm.jpg |
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|a Theses and Dissertations |
