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Resistance and agility training reduce fall risk in women aged 75 to 85 with low bone mass: a 6-month randomized, controlled trial.
J Am Geriatr Soc 2004; 52(5):657-65JA

Abstract

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+Show Affiliations

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.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15086643

Citation

Liu-Ambrose, Teresa, et al. "Resistance and Agility Training Reduce Fall Risk in Women Aged 75 to 85 With Low Bone Mass: a 6-month Randomized, Controlled Trial." Journal of the American Geriatrics Society, vol. 52, no. 5, 2004, pp. 657-65.
Liu-Ambrose T, Khan KM, Eng JJ, et al. Resistance and agility training reduce fall risk in women aged 75 to 85 with low bone mass: a 6-month randomized, controlled trial. J Am Geriatr Soc. 2004;52(5):657-65.
Liu-Ambrose, T., Khan, K. M., Eng, J. J., Janssen, P. A., Lord, S. R., & McKay, H. A. (2004). Resistance and agility training reduce fall risk in women aged 75 to 85 with low bone mass: a 6-month randomized, controlled trial. Journal of the American Geriatrics Society, 52(5), pp. 657-65.
Liu-Ambrose T, et al. Resistance and Agility Training Reduce Fall Risk in Women Aged 75 to 85 With Low Bone Mass: a 6-month Randomized, Controlled Trial. J Am Geriatr Soc. 2004;52(5):657-65. PubMed PMID: 15086643.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Resistance and agility training reduce fall risk in women aged 75 to 85 with low bone mass: a 6-month randomized, controlled trial. AU - Liu-Ambrose,Teresa, AU - Khan,Karim M, AU - Eng,Janice J, AU - Janssen,Patti A, AU - Lord,Stephen R, AU - McKay,Heather A, PY - 2004/4/17/pubmed PY - 2004/6/5/medline PY - 2004/4/17/entrez SP - 657 EP - 65 JF - Journal of the American Geriatrics Society JO - J Am Geriatr Soc VL - 52 IS - 5 N2 - 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. SN - 0002-8614 UR - https://www.unboundmedicine.com/medline/citation/15086643/Resistance_and_agility_training_reduce_fall_risk_in_women_aged_75_to_85_with_low_bone_mass:_a_6_month_randomized_controlled_trial_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0002-8614&date=2004&volume=52&issue=5&spage=657 DB - PRIME DP - Unbound Medicine ER -