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A study on the effects of using Kneehab XP in a post ACL reconstruction setting was published in the June 2011 edition of the American Journal of Sports Medicine, and demonstrated significant impact on patient outcomes. Please find a summary of this study below.

 

STUDY HIGHLIGHTS
Kneehab XP – clinically proven to accelerate recovery

 

The Effectiveness of Supplementing a standard rehabilitation program with superimposed neuromuscular electrical stimulation after anterior cruciate ligament reconstruction.

 

Compares the effects of adding NMES to a post-ACL repair rehabilitation program.

The study comprised three groups:

1 Control Group (CO) received standard PT therapy

2 NMES Group (PS) received standard PT therapy + standard NMES

3 Kneehab Group (KH) received standard PT therapy + Kneehab XP

 

Study leveraged post-surgical protocol:

+ An accelerated rehabilitation protocol was initiated post-surgically for all subjects

+ The two NMES groups

          • Began NMES therapy on the 3rd or 4th day following surgery

• NMES sessions conducted 3 x 20-minute sessions daily, 5 times per  week for  12 weeks

• Subjects were instructed to perform voluntary quadriceps contractions during the sessions

+ The control group was instructed to perform quadriceps contractions on the same time schedule

+ Post-surgical checks were conducted at 6, 12 and 24 weeks

 

Objective & subjective measures were used to evaluate the subject’s progress.

Measures were in alignment with rehabilitation therapy goals:

+ Restore ROM

+ Increase extensor strength

+ Enhance functional ability

+ Reintegrate in to every day activities

 

Kneehab restored knee extensor strength twice as fast as other treatment protocols:

+ Measuring 90-45° extension range of motion at 90°/sec & 180°/sec

+ Kneehab restored knee extension strength before Week 12

+ Standard NMES & control groups not to pre-operative strength until Week 24

 

Kneehab group returned to strength of unaffected leg within 12 weeks:

 

+ Measuring 90-45° extension range of motion at 90°/sec & 180°/sec

+ Kneehab group at equal strength by Week 12

+ Standard NMES & control groups do not reach equal strength

  

 

Kneehab group returned to pre-operative levels twice as fast as other two groups:

+ The Kneehab group attained pre-operative speed in the shuttle run by Week 6 whereas the other groups did not attain pre-operative speed until Week 12 or later.

+ The Kneehab group also attained pre-operative distance shortly after Week 6 in the one-leg hop test, twice as fast as the other groups.

 

 
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Difference in test performance between standard NMES & the Control group was not significant in any test measure:

+ Difference between Kneehab & other interventions was significant/better in every test measure P < 0.05

Kneehab group showed higher compliance along with a faster return to work:

+ Patient diaries showed a higher rate of compliance with Kneehab than with standard NMES

 

+ Diaries also showed that the Kneehab group returned to work a full week faster than the other groups. Return to week time:

 

       • Control group: 3.67 weeks

       • NMES group: 3.88 weeks

       • Kneehab group: 2.7 weeks

 

 

 

 

 

 

 

 
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