Maximum Absolute and Relative Joint Torques during Recovery from a Simulated Trip
dc.contributor.author | Whitley, Michael James | en |
dc.contributor.committeechair | Madigan, Michael L. | en |
dc.contributor.committeemember | Davy, Kevin P. | en |
dc.contributor.committeemember | Nussbaum, Maury A. | en |
dc.contributor.department | Biomedical Engineering and Sciences | en |
dc.date.accessioned | 2014-03-14T20:40:25Z | en |
dc.date.adate | 2008-07-25 | en |
dc.date.available | 2014-03-14T20:40:25Z | en |
dc.date.issued | 2008-06-20 | en |
dc.date.rdate | 2010-12-22 | en |
dc.date.sdate | 2008-06-23 | en |
dc.description.abstract | Previous studies have shown that obesity negatively affects balance during quiet standing, yet little is known about its effect on the ability to recover after a postural perturbation. The purpose of this thesis was to investigate the effects of obesity on single-step balance recovery from an incipient forward fall. Eight obese (BMI = 33.2 ± 2.4) and eight non-obese (BMI = 24.8 ± 1.8) participants were released from a static forward lean and asked to recover their balance with a single step. Lean angle was progressively increased until they could no longer recover balance with a single step. Peak joint torques and relative effort during balance recovery were calculated and compared across the groups. Obese participants achieved a smaller maximum lean angle compared to non-obese participants. During balance recovery, obese participants exhibited higher ankle plantar flexor torques and relative effort. Trends also suggested higher relative hip extensor effort in the obese. Obese adults exhibited a poorer ability to recover from a forward fall with a single step. In addition, obese adults used a higher percentage of their total hip and ankle strength compared to non-obese adults during balance recovery. This suggests that the poorer ability of recovering from a forward fall in the obese may be related to increased exertion levels during balance recovery. | en |
dc.description.degree | Master of Science | en |
dc.identifier.other | etd-06232008-162913 | en |
dc.identifier.sourceurl | http://scholar.lib.vt.edu/theses/available/etd-06232008-162913/ | en |
dc.identifier.uri | http://hdl.handle.net/10919/33710 | en |
dc.publisher | Virginia Tech | en |
dc.relation.haspart | MJWhitley_Thesis_Resubmit.pdf | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | trip | en |
dc.subject | obese | en |
dc.subject | joint torques | en |
dc.subject | fall | en |
dc.title | Maximum Absolute and Relative Joint Torques during Recovery from a Simulated Trip | en |
dc.type | Thesis | en |
thesis.degree.discipline | Biomedical Engineering and Sciences | en |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
thesis.degree.level | masters | en |
thesis.degree.name | Master of Science | en |
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