title: Eliciting upper extremity purposeful movements using video games: a comparison with traditional therapy for stroke rehabilitation.
abstract: BACKGROUND
  Video games have become popular in stroke rehabilitation; however, the nature of this intervention is not fully understood.
  
  
  OBJECTIVE
  To compare the number of (a) purposeful and nonpurposeful repetitions of the weaker upper extremity (UE) and (b) movement accelerations as assessed by accelerometer activity counts of the weaker and stronger UEs of individuals with chronic stroke while playing video games or participating in traditional therapy.
  
  
  METHODS
  Twenty-nine individuals (mean age 59 years, 1-7 years poststroke) took part in a group intervention of video -games (n = 15) or traditional therapy (n = 14) as part of a randomized controlled trial. During 1-2 sessions, participants were video-taped while wearing wrist accelerometers. Assessors counted the number of repetitions and classified movements as purposeful or nonpurposeful using videotapes. The weaker UE motor impairments were correlated to movement accelerations, to determine if participants were using their potential during the sessions.
  
  
  RESULTS
  Participants in the video game group performed a median of 271 purposeful movements and 37 970 activity counts compared to 48 purposeful movements and 14,872 activity counts in the traditional group (z = -3.0, P = .001 and z = -1.9, P = .05, respectively). Participants in the traditional group performed a median of 26 nonpurposeful (exercises) compared with 0 in the video game group (z = -4.2, P = .000). Strong significant correlations were found between the motor ability of the weak UE to repetitions of participants in both groups (r = .86, P < .01). Participants with higher motor ability performed more repetitions.
  
  
  CONCLUSIONS
  Video games elicited more UE purposeful repetitions and higher acceleration of movement compared with traditional therapy in individuals with chronic stroke.
authors: Department of Occupational Therapy, School of Health Professions Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel drand@post.tau.ac.il.
authors: Debbie
authors: D
authors: Rand
authors: Department of Occupational Therapy, School of Health Professions Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
authors: Noa
authors: N
authors: Givon
authors: Department of Occupational Therapy, School of Health Professions Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel Department of Neurological Rehabilitation, The Chaim Sheba Medical Center, Tel-HaShomer, Israel.
authors: Harold
authors: H
authors: Weingarden
authors: Department of Neurological Rehabilitation, The Chaim Sheba Medical Center, Tel-HaShomer, Israel.
authors: Ayala
authors: A
authors: Nota
authors: Department of Occupational Therapy, School of Health Professions Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel Department of Neurological Rehabilitation, The Chaim Sheba Medical Center, Tel-HaShomer, Israel.
authors: Gabi
authors: G
authors: Zeilig
mesh_terms: D000328:Adult; D000368:Aged; D005081:Exercise Therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement; D020127:Recovery of Function; D000071939:Stroke Rehabilitation; D016896:Treatment Outcome; D034941:Upper Extremity / Q000503:physiopathology*; D018910:Video Games
keywords: chronic stroke; upper extremity; virtual reality