Author: Tsuji T1, Yoon J2, Aiba T3, Kanamori A4, Okura T5, Tanaka K5.
Affiliation: 1Gerontology Research Center, University of Jyväskylä, Finland; Japan Society for the Promotion of Science, Japan. Electronic address: tsuji.t.taishi@jyu.fi. 2Doctoral Program in Physical Education, Health and Sport Sciences, University of Tsukuba, Japan. 3Doctoral Program in Sports Medicine, University of Tsukuba, Japan. 4Faculty of Health and Sport Sciences, University of Tsukuba, Japan; University of Tsukuba, Department of Orthopaedic Surgery, Japan. 5Faculty of Health and Sport Sciences, University of Tsukuba, Japan.
Conference/Journal: Knee
Date published: 2014 Jul 28
Other:
Pages: S0968-0160(14)00160-4 , Special Notes: doi: 10.1016/j.knee.2014.07.015 , Word Count: 262
BACKGROUND:
Whole-body vibration training using vertical-vibration machines is called "acceleration training" (AT). The purpose of this study was to elucidate the effect of AT on lower-limb muscular strength and power, functional mobility and self-reported knee function in middle-aged and older Japanese women with knee pain.
METHODS:
Thirty-eight middle-aged and older Japanese women (aged 50-73years) with knee pain were divided into two groups: (1) the AT group (n=29) engaged in AT three times per week for eightweeks, and (2) the control group (C group, n=9). The AT program consisted of flexibility training, strength training of mainly the quadriceps and surrounding muscles and cool-down exercises. The C group was encouraged to perform the same or similar exercises at home without vibratory stimulus. We evaluated knee strength and power, functional mobility (timed up and go: TUG) and self-reported knee function (Japanese Knee Osteoarthritis Measure: JKOM).
RESULTS:
No one in the AT group dropped out during the program. All JKOM categories except degree of pain improved significantly post intervention indicating improved knee function, and TUG was significantly shorter in these participants. All knee strength and power parameters except isometric knee extension peak torque improved significantly. The degree of change in JKOM total score and TUG was significantly different between the two groups.
CONCLUSION:
Vibratory stimulus during an eight week AT programme can promote participation and safely improve functional mobility and self-reported knee function better than exercise without vibratory stimulus in middle-aged and older Japanese women with knee pain. Level of evidence: level 2.
Copyright © 2014 Elsevier B.V. All rights reserved.
KEYWORDS:
Acceleration training; JKOM score; Knee osteoarthritis
PMID: 25153612