title: Effects of a DVD-delivered exercise intervention on physical function in older adults.
abstract: BACKGROUND
  Given the rapidly increasing demographic of older adults, it is vital to implement effective behavioral strategies to improve physical function to maintain activities of daily living. However, changing physical activity in older adults remains extremely difficult. The current trial tested the efficacy of a novel, 6-month, home-based, DVD-delivered exercise program focusing on flexibility, balance, and toning on the physical function of older adults.
  
  
  METHODS
  Older adults (N = 307) were recruited from 83 towns and cities throughout central Illinois. The trial consisted of 4 waves of recruitment and randomization from May 2010 through January 2012. Inclusion criteria included being inactive, at least 65 years of age, English speaking, providing physician's consent, and willingness to be randomized. Eligible participants were randomly assigned to 1 of 2 treatment conditions: the exercise intervention or a healthy aging, attentional control. Functional assessments were completed at baseline and following the 6-month DVD intervention. Measures included the Short Physical Performance Battery, assessments of flexibility and strength, and self-reported functional limitations.
  
  
  RESULTS
  Participants in the DVD intervention condition demonstrated significant improvements in the Short Physical Performance Battery (p = .005), lower extremity flexibility (p = .04), and upper body strength (p = .003). There were no effects of the intervention on self-reported functional limitations.
  
  
  CONCLUSIONS
  The exercise intervention produced a clinically significant improvement in the Short Physical Performance Battery and improvements in flexibility and strength, demonstrating the effectiveness of a low-cost DVD exercise program in improving physical function in older adults.
authors: Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, 906 S. Goodwin Avenue, Urbana, IL 61801, USA. emcauley@illinois.edu
authors: Edward
authors: E
authors: McAuley
authors: Thomas R
authors: TR
authors: Wójcicki
authors: Neha P
authors: NP
authors: Gothe
authors: Emily L
authors: EL
authors: Mailey
authors: Amanda N
authors: AN
authors: Szabo
authors: Jason
authors: J
authors: Fanning
authors: Erin A
authors: EA
authors: Olson
authors: Siobhan M
authors: SM
authors: Phillips
authors: Robert W
authors: RW
authors: Motl
authors: Sean P
authors: SP
authors: Mullen
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000375:Aging / Q000502:physiology* / Q000523:psychology; D005081:Exercise Therapy / Q000009:adverse effects / Q000379:methods* / Q000523:psychology; D005260:Female; D005684:Gait / Q000502:physiology; D006801:Humans; D008297:Male; D053580:Muscle Strength / Q000502:physiology; D010349:Patient Compliance; D017060:Patient Satisfaction; D004856:Postural Balance / Q000502:physiology; D016059:Range of Motion, Articular / Q000502:physiology; D012648:Self Care / Q000379:methods; D014742:Videodisc Recording; D016138:Walking / Q000502:physiology
keywords: Balance.; Clinical trial; DVD; Functional performance; Gait; Home-based exercise; Public health
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