title: Vibration therapy accelerates healing of Stage I pressure ulcers in older adult patients.
abstract: OBJECTIVE
  The present study investigated whether vibration therapy using a vibrator could facilitate the healing of Stage I pressure ulcers (PrUs) in older adults.
  
  
  METHODS
  The study had a nonrandomized, blinded, controlled design. The subjects were hospital patients in long-term-care facilities with Stage I PrUs. In the experimental group, a vibrator (RelaWave; Matsuda Micronics Corp, Chiba, Japan) was used to apply vibration (frequency: 47 Hz; time: 10 seconds; amplitude modulation cycle: 15 seconds) for 15 minutes 3 times a day for up to 7 days, until Stage I PrUs healed. Apart from the vibration therapy, the experimental and control groups received the same care, which was provided according to PrU care guidelines. The number of healed ulcers was compared between 2 groups.
  
  
  RESULTS
  The experimental group consisted of 16 patients with 20 Stage I PrUs; the control group consisted of 15 patients with 21 Stage I PrUs. In the experimental group, 8 (40.0%) PrUs healed; in the control group, 2 (9.5%) PrUs healed. The number of healed ulcers was significantly higher in the experimental group than in the control group (P = .033). The healing rate during the study period was significantly higher in the experimental group than in the control group (P = .018, logrank test). The hazard ratio adjusted for baseline risk factors was 0.031 (95% confidence intervals: 0.002-0.594, P = .021). The mean relative changes per day in wound area and intensity of redness were significantly greater in the experimental group than in the control group (P = .007, and P = .023, respectively).
  
  
  CONCLUSIONS
  Based on these results, the use of the vibrator may facilitate the healing of Stage I PrUs.
authors.affiliation: Kanazawa University, Ishikawa, Japan.
authors.forename: Midori
authors.initials: M
authors.lastname: Arashi
authors.forename: Junko
authors.initials: J
authors.lastname: Sugama
authors.forename: Hiromi
authors.initials: H
authors.lastname: Sanada
authors.forename: Chizuko
authors.initials: C
authors.lastname: Konya
authors.forename: Mayumi
authors.initials: M
authors.lastname: Okuwa
authors.forename: Gojiro
authors.initials: G
authors.lastname: Nakagami
authors.forename: Ayumi
authors.initials: A
authors.lastname: Inoue
authors.forename: Keiko
authors.initials: K
authors.lastname: Tabata
mesh_terms: D000368:Aged; D001458:Bandages; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D003668:Pressure Ulcer / Q000628:therapy*; D012044:Regression Analysis; D012720:Severity of Illness Index; D016037:Single-Blind Method; D017592:Skin Care / Q000379:methods; D016896:Treatment Outcome; D014732:Vibration / Q000627:therapeutic use*; D014945:Wound Healing