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Table 3 Significant correlations

From: Effects of preoperative neuromuscular electrical stimulation on quadriceps strength and functional recovery in total knee arthroplasty. A pilot study

Comparison

p value

r value

Quads Strength and TWT

  

Baseline

0.003

-0.688

Week 6

0.003

-0.697

Week 12

0.005

-0.662

Quads Strength and TST

  

Baseline

0.008

-0.626

Preoperative

0.020

-0.552

Week 6

0.009

-0.618

Week 12

0.001

-0.776

Quads Strength and TCT

  

Preoperative

0.032

-0.508

WOMAC-Pain and TCT

  

Baseline

0.047

0.464

WOMAC-Function and TWT

  

Baseline

0.034

0.252

SF36-Physical Health and TWT

  

Baseline

0.009

-0.623

Week 12

0.041

-0.481

SF36-Physical Health and TST

  

Preoperative

0.039

-0.487

SF36-Mental Health and TCT

  

Week 12

0.026

-0.528

  1. p value - significance level
  2. r value - correlation coefficient
  3. WOMAC - Western Ontario McMaster Osteoarthritis Index
  4. SF-36 - Short Form 36
  5. CSA = Cross-sectional area
  6. TWT = 25-metre timed walk test/TST = Timed stair-climb test/TCT = Timed chair-rise test