2008 Student Research Conference:
21st Annual Student Research Conference

Influence of Movement Direction on the Proprioception Ability of the Elbow Joint During Triceps Brachii Vibration
Angela M. Moody* and Steven Lyons
Dr. Jeremy Houser, Faculty Mentor

This study investigated the influence of elbow flexion versus extension on proprioception accuracy during extensor muscle vibration. College students (N=25) were seated to reduce body movement and blindfolded to prevent visual feedback. The vibrator was strapped on the distal end of the triceps brachii muscle. Prior to each condition, the subjects were passively positioned to reveal the target angle. From full elbow extension, the subject was asked to actively flex their elbow to match the target angle of 45 degrees. Similarly, the subject actively extended their elbow from 90 degrees to the target angle. Error from target angle was recorded. Each procedure was repeated with vibration. Order of conditions was randomized. Vibration did significantly increase error of proprioception. However, no significant difference in error was found between the elbow flexion and the elbow extension conditions during vibration. The results support the idea that the proprioceptive system works bidirectionally.

Keywords: vibration, proprioception, triceps brachii, elbow, flexion, extension

Topic(s):Exercise Science

Presentation Type: Poster

Session: 7-12
Location: OP Lobby
Time: 4:15

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