Document Detail

Three-dimensional repositioning tasks show differences in joint position sense between active and passive shoulder motion.
MedLine Citation:
PMID:  22072560     Owner:  NLM     Status:  Publisher    
Proprioception is important in maintaining shoulder joint stability. Previous studies investigated the effects of unconstrained multiplanar motion, with subjects able to move freely in space, on repositioning tasks for active shoulder motion but not passive motion. We sought to further explore joint position sense with 3D passive, robot-guided motions. We hypothesized that target repositioning error would be greater in the case of passively placed targets than for actively placed targets. To investigate, 15 healthy individuals participated (8 female, 7 male), who were at most 6 ft (183 cm) tall to accommodate the equipment, and who had no history of shoulder injury, surgery, or significant participation in throwing sports. Target orientations were centered at 44° of elevation and 32° of horizontal rotation from the frontal plane. Two sets of 10 trials were performed. The first set involved active placement followed by active replacement, and the second set involved passive, robot-guided, placement followed by active replacement. Repositioning error was greater following passive placement than active placement (p < 0.001). These results further our understanding of the differences between active and passive joint position sense at the shoulder. © 2011 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res.
R I Carl Erickson; Andrew R Karduna
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-9
Journal Detail:
Title:  Journal of orthopaedic research : official publication of the Orthopaedic Research Society     Volume:  -     ISSN:  1554-527X     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8404726     Medline TA:  J Orthop Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Orthopaedic Research Society.
Department of Human Physiology, 1240 University of Oregon, Esslinger 122, University of Oregon, Eugene, Oregon 97403-1240.
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