NCT00738010

Effectiveness of Kneehab in Strengthening Quadriceps in Rehabilitation Post Anterior Cruciate Ligament (ACL) Reconstruction

The Effectiveness of Kneehab in Strengthening the Quadriceps of Patients in Rehabilitation After Anterior Cruciate Ligament Reconstruction

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 131 (actual)
• Sponsor: Bio-Medical Research, Ltd. · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Prospective, controlled, randomized, single blind study in patients undergoing rehabilitation following anterior cruciate ligament reconstruction. 96 patients were randomly assigned to one of three groups. Group Group KH (Kneehab n=33)trained with a new type of NMES with multipath activation for 20 minutes, 3 times per day, 5 days per week for 12 weeks; Group PS (Poli-Stim n=29) trained with standard neuromuscular electrical stimulation (NMES) for 20 minutes per day, 5 days per week for 12 weeks; Group CO (Control - n=34), which did not use muscle stimulation, performed voluntary isometric quadriceps muscle contractions. Patients receiving either form of NMES treatment were instructed to isometrically contract the quadriceps muscle voluntarily with each electrical muscle stimulation. All three groups superimposed this training schedule on the standard post-ACL reconstruction rehabilitation protocol used at the clinic. The study design corresponded to a two-way variance analysis with three groups and 4 examination times (Baseline, 6 weeks, 12 weeks and 24 weeks post ACL reconstruction). The level of significance was set at 5%. The key indicators of the quadriceps muscle training intervention were the isokinetic strength development of the extensors of the injured leg at 90 degrees/second and 180 degrees/second and the distance achieved by participants performing the single-leg hop and the time to complete the shuttle run. The target was to show a difference of 10% in the relative distance jumped for the single-leg hop and for the isokinetic strength tests and a 1.2 second difference in the time to complete the shuttle run. The target of 3 weeks was set for participants to achieve full weight-bearing capability without use of a walking aid. A comparison between the groups of the time for return to usual work activities was planned.

Detailed description

Single center, prospective, controlled, randomized, single blind study in 96 patients following anterior crucial ligament (ACL)reconstruction to compare the effect of adding traditional NMES or garment-integrated NMES to a standard post-surgery rehabilitation program. In both cases the NMES was superimposed on isometric voluntary muscle contractions.

Conditions

• Anterior Cruciate Ligament Reconstruction

Interventions

Type	Name	Description
DEVICE	Kneehab	Program of NMES 3 times per day, five days per week for 12 weeks.
DEVICE	Poli-Stim	Poli-Stim is standard NMES which the patients used for 20 minutes, 3 times per day, 5 days per week for 12 weeks.
BEHAVIORAL	Control	Voluntary quadriceps muscle contractions.

Timeline

• Start date: 2005-04-01
• Primary completion: 2006-10-01
• Completion: 2006-10-01
• First posted: 2008-08-20
• Last updated: 2008-09-17

Locations

1 site across 1 country: Germany