Document Detail


Resistance and agility training reduce fall risk in women aged 75 to 85 with low bone mass: a 6-month randomized, controlled trial.
MedLine Citation:
PMID:  15086643     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To compare the effectiveness of group resistance and agility-training programs in reducing fall risk in community-dwelling older women with low bone mass.
DESIGN: A randomized, controlled, single-blind 25-week prospective study with assessments at baseline, midpoint, and trial completion.
SETTING: Community center.
PARTICIPANTS: Community-dwelling women aged 75 to 85 with low bone mass.
INTERVENTION: Participants were randomly assigned to one of three groups: resistance training (n=32), agility training (n=34), and stretching (sham) exercises (n=32). The exercise classes for each study arm were held twice weekly.
MEASUREMENTS: The primary outcome measure was fall risk (derived from weighted scores from tests of postural sway, reaction time, strength, proprioception, and vision), as measured using a Physiological Profile Assessment (PPA). Secondary outcome measures were ankle dorsiflexion strength, foot reaction time, and Community Balance and Mobility Scale score.
RESULTS: Attendance at the exercise sessions for all three groups was excellent: resistance training (85.4%), agility training (87.3%), and stretching program (78.8%). At the end of the trial, PPA fall-risk scores were reduced by 57.3% and 47.5% in the resistance and agility-training groups, respectively, but by only 20.2% in the stretching group. In the resistance and agility groups, the reduction in fall risk was mediated primarily by improved postural stability, where sway was reduced by 30.6% and 29.2%, respectively. There were no significant differences between the groups for the secondary outcomes measures. Within the resistance-training group, reductions in sway were significantly associated with improved strength, as assessed using increased squat load used in the exercise sessions.
CONCLUSION: These findings support the implementation of community-based resistance and agility-training programs to reduce fall risk in older women with low bone mass. Such programs may have particular public health benefits because it has been shown that this group is at increased risk of falling and sustaining fall-related fractures.
Authors:
Teresa Liu-Ambrose; Karim M Khan; Janice J Eng; Patti A Janssen; Stephen R Lord; Heather A McKay
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the American Geriatrics Society     Volume:  52     ISSN:  0002-8614     ISO Abbreviation:  J Am Geriatr Soc     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-04-16     Completed Date:  2004-06-04     Revised Date:  2012-09-20    
Medline Journal Info:
Nlm Unique ID:  7503062     Medline TA:  J Am Geriatr Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  657-65     Citation Subset:  IM    
Affiliation:
Bone Health Research Group, British Columbia Women's Hospital and Health Center Osteoporosis Program and Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
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MeSH Terms
Descriptor/Qualifier:
Absorptiometry, Photon
Accidental Falls / prevention & control*
Age Factors
Aged
Aged, 80 and over
Bone Density*
Exercise*
Female
Fractures, Bone / etiology,  prevention & control
Humans
Physical Fitness
Posture
Prospective Studies
Risk Factors
Time Factors
Grant Support
ID/Acronym/Agency:
63617//Canadian Institutes of Health Research
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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