title: Low-intensity exercise and reduction of the risk for falls among at-risk elders.
abstract: BACKGROUND
  Among elderly persons, falls account for 87% of all fractures and are contributing factors in many nursing home admissions. This study evaluated the effect of an easily implemented, low-intensity exercise program on the incidence of falls and the time to first fall among a clinically defined population of elderly men and women.
  
  
  METHODS
  This community-based, randomized trial compared the exercise intervention with a no-intervention control. The participants were 294 men and women, aged 60 years or older, who had either a hospital admission or bed rest for 2 days or more within the previous month. Exercise participants were scheduled to attend exercise sessions lasting 45 minutes, including warm-up and cool-down, 3 times a week for 8 weeks (24 sessions). Assessments included gait and balance measures, self-reported physical function, the number of medications being taking at baseline, participant age, sex, and history of falling. Falls were tracked for 1 year after each participant's baseline assessment.
  
  
  RESULTS
  29% of the study participants reported a fall during the study period. The effect of exercise in preventing falls varied significantly by baseline physical function level (p < or =.002). The risk for falls decreased for exercise participants with low baseline physical functioning (hazard ratio,.51) but increased for exercise participants with high baseline physical functioning (hazard ratio, 3.51).
  
  
  CONCLUSIONS
  This easily implemented, low-intensity exercise program appears to reduce the risk for falls among elderly men and women recovering from recent hospitalizations, bed rest, or both who have low levels of physical functioning.
authors.affiliation: Houston Center for Quality of Care and Utilization Studies, VA Medical Center, Texas 77030, USA. rmorgan@bcm.tmc.edu
authors.forename: Robert O
authors.initials: RO
authors.lastname: Morgan
authors.forename: Beth A
authors.initials: BA
authors.lastname: Virnig
authors.forename: Maurice
authors.initials: M
authors.lastname: Duque
authors.forename: Elsayed
authors.initials: E
authors.lastname: Abdel-Moty
authors.forename: Carolee A
authors.initials: CA
authors.lastname: Devito
mesh_terms: D000058:Accidental Falls / Q000517:prevention & control* / Q000706:statistics & numerical data; D000368:Aged; D000369:Aged, 80 and over; D001510:Bed Rest; D015444:Exercise; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008499:Medical Records; D010352:Patient Dropouts / Q000706:statistics & numerical data; D016016:Proportional Hazards Models; D012307:Risk Factors; D013997:Time Factors