Document Detail


An assessment of the osteogenic index of therapeutic exercises for stroke patients: relationship to severity of leg motor impairment.
MedLine Citation:
PMID:  18946629     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
SUMMARY: Exercise may be a viable way to promote bone health in stroke survivors. This study used the osteogenic index to evaluate the osteogenic potential of selected exercises for stroke survivors. The results show that brisk walking and stepping may be good skeletal loading exercises for this population. INTRODUCTION: Exercise may induce positive effects on bone health in stroke patients. The purpose of this study was to evaluate the osteogenic potential of selected exercises for stroke survivors. METHODS: Sixty stroke patients were categorized into group 1 (moderate to severe leg motor impairment) and group 2 (mild to moderate impairment). Each subject performed five exercises in random order: walking at self-selected speed, walking at maximal speed, stepping onto a 6-in. riser, sit-to-stand, and jumping. The peak ground reaction force (GRF) on the hemiparetic side and the number of loading cycles achieved in 1 min were determined. The osteogenic index (OI) was computed for each exercise, based on the formula: OI = Peak GRF (in body weight) x In (number of loading cycles + 1). Two-way analysis of variance was used to compare the OI among the five exercises between the two groups. RESULTS: For group 1, stepping had significantly higher OI than other exercises (p < 0.001). For group 2, both walking at maximal speed and stepping had significantly higher OI than other exercises (p < 0.001). CONCLUSIONS: Stepping had the highest OI for those with more severe leg motor impairment. Both stepping and brisk walking had superior OI for those with mild leg motor impairment.
Authors:
R W K Lau; M Y C Pang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-10-23
Journal Detail:
Title:  Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA     Volume:  20     ISSN:  1433-2965     ISO Abbreviation:  Osteoporos Int     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-05-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9100105     Medline TA:  Osteoporos Int     Country:  England    
Other Details:
Languages:  eng     Pagination:  979-87     Citation Subset:  IM    
Affiliation:
Department of Rehabilitation Sciences, Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
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