Article

OBJECTIVES: To examine the effects of a time-saving leg-press training program
with moderate vibration on strength parameters, pain, and functional outcomes of
patients after total knee arthroplasty (TKA) in comparison with functional physiotherapy. DESIGN: Randomized controlled trial. SETTING: Outpatient
rehabilitation department at a university teaching hospital. PARTICIPANTS:
Patients (N=55) with TKA were randomly allocated into 2 rehabilitation groups.
INTERVENTIONS: Six weeks after TKA, participants either underwent isokinetic
leg-press training combined with moderate vibration (n=26) of 15 minutes per
session or functional physiotherapy (n=29) of 30 minutes per session. Both groups
received therapy twice a week for a period of 6 weeks. Participants were
evaluated at baseline (6wk after TKA) and after the 6-week rehabilitation
program. MAIN OUTCOME MEASURES: The main outcome measure was maximal voluntary
contraction (MVC) of the involved leg. Secondary outcome measures were pain
assessed with a visual analog scale (VAS), range of motion, stair test, timed Up
and Go test, and Western Ontario and McMaster Universities Osteoarthritis Index
(WOMAC). RESULTS:
Both groups showed statistically significant improvements in
MVC of knee extensors measured on the knee dynamometer (leg-press group: from
0.8+/-.06 to 1+/-.09Nm/kg body weight [BW], physiotherapy group: from 0.7+/-.06
to 0.9+/-.06Nm/kg BW; P<.05) and in closed kinetic chain on the leg press
(leg-press group: from 8.9+/-.77 to 10.3+/-1.06N/kg BW, physiotherapy group: from
6.7+/-.54 to 9.1+/-.70N/kg BW; P<.05) and in pain at rest (leg-press group: from
2+/-.36 to 1.3+/-.36 on the VAS, physiotherapy group: from 1.2+/-.28 to
1.1+/-.31; P<.05), WOMAC scores, and functional measurements after 6 weeks of
training. There was no significant difference between the 2 groups concerning
strength, pain, and functional outcomes after training (P>.05). CONCLUSIONS:
Isokinetic leg-press training with moderate vibration and functional
physiotherapy are both effective in regaining muscle strength and function after
TKA; however, isokinetic leg-press training is considerably less time consuming.
CI - Copyright (c) 2016 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS