MedTrace Logo

Exercise and Muscle Stimulation in Patients With Knee Osteoarthritis

NCT01320904 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 19

Last updated 2011-03-23

No results posted yet for this study

Summary

Objective: To evaluate the effectiveness of neuromuscular electrical stimulation (NMES) combined with closed kinetic chain (CKC) exercises in patients with knee OA.

Conditions

  • Osteoarthritis, Knee
  • Self Stimulation
  • Exercise Addiction

Interventions

PROCEDURE

NMES

We used a electrical stimulation device with a 2500-Hz carrier frequency. We used four channels in the synchronous mode, with surface electrodes that were simultaneously fixed at the motor points of the quadriceps and hamstrings. Initially, a warm-up protocol that was five minutes long was used at a stimulation frequency of 40 Hz to activate the slow fibers. These fibers activated with a four-second-contraction time (on), a four-second-stimulus rise time, a four-second-stimulation decay time and a 12-second relaxation time (off). We then increased the frequency to 70 Hz to activate the fast fibers for an additional 10 minutes using the parameters described above, and finally, the frequency was increase to 150 Hz for 10 minutes to achieve maximal muscle potentiation.

PROCEDURE

Closed Kinetic Chain

During the stimulation period, i.e., the on time, the patient remained in a mini-squat position at thirty degrees and returned to zero degrees during the decay period. During the electrical stimulation off period, the patient spontaneously performed another mini-squat at 30 degrees without electrical stimulation. The patients in the CKC + NMES placebo group simulated the same work applied to the NMES group. Notably, this group was also connected to the electrodes, but the equipment was set at a stimulus intensity of zero.

Sponsors & Collaborators

  • Universidade Luterana do Brasil

    lead OTHER

Principal Investigators

  • Marcelo Dohnert · Universidade Luterana do Brasil

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
SINGLE_GROUP

Eligibility

Min Age
40 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2010-08-31
Primary Completion
2010-10-31
Completion
2010-10-31

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01320904 on ClinicalTrials.gov