Skip to main content

Table 3 Unadjusted Spearman’s rho correlations between muscle measures and functional measures

From: Ultrasound measures of muscle thickness may be superior to strength testing in adults with knee osteoarthritis: a cross-sectional study

Muscle group

WOMAC pain

WOMAC stiffness

WOMAC function

WOMAC total

Age

Gender

BMI

Symptom duration

Muscle strength measures

 Symptomatic knee extension

−0.42

− 0.18

− 0.35

− 0.36

− 0.10

0.49 *

0.18

0.21

 Asymptomatic knee extension

− 0.31

− 0.17

− 0.29

− 0.27

− 0.02

0.41

− 0.20

0.20

 Symptomatic hip abduction

− 0.52 *

− 0.22

− 0.46 *

− 0.47 *

− 0.25

0.17

0.01

0.11

 Asymptomatic hip abduction

− 0.49 *

− 0.28

− 0.51 *

−0.51 *

− 0.22

0.47 *

0.04

0.10

 Symptomatic hip adduction

−0.52 *

−0.13

− 0.44 *

−0.44 *

0.02

0.36

−0.09

0.07

 Asymptomatic hip adduction

−0.51 *

−0.25

− 0.54 *

−0.54 ‡

0.10

0.28

−0.07

−0.08

 Symptomatic ankle plantarflexion

−0.46 *

−0.06

− 0.49 *

−0.47 *

− 0.43 *

0.30

− 0.09

0.19

 Asymptomatic ankle plantarflexion

−0.46 *

−0.18

−.0.42 *

− 0.42 *

−0.35

0.25

−0.04

0.27

Muscle thickness measures

 Symptomatic quadriceps thickness

−0.48 *

−0.09

− 0.62 ‡

−0.60 ‡

− 0.35

0.37

− 0.04

0.15

 Asymptomatic quadriceps thickness

−0.38

−0.22

− 0.54 *

−0.53 *

− 0.29

0.51 *

− 0.01

0.15

 Symptomatic hip abductor thickness

−0.13

−0.09

− 0.14

−0.14

0.05

0.41 *

0.03

−0.10

 Asymptomatic hip abductor thickness

−0.20

− 0.02

− 0.25

− 0.22

− 0.05

0.43 *

0.08

−0.10

 Symptomatic hip adductor thickness

−0.45 *

− 0.11

− 0.47 *

−0.44 *

− 0.02

0.64 *

− 0.30

− 0.06

 Asymptomatic hip adductor thickness

−0.45 *

− 0.10

− 0.40

−0.38

− 0.04

0.58 ‡

− 0.27

− 0.11

 Symptomatic calf thickness

− 0.39

− 0.04

− 0.39

−0.37

− 0.14

0.49 *

− 0.12

−0.05

 Asymptomatic calf thickness

−0.37

−0.03

− 0.37

−0.35

− 0.15

0.47 *

− 0.14

−0.08

  1. WOMAC Western Ontario and McMaster Arthritis Index, BMI Body Mass Index
  2. Strength measured in torque (Nm) normalized to body weight (kg), ie Nm/kg
  3. Values indicated by * with bold text indicates significance at 0.05 level, ‡ with bold text indicates significance at 0.01 level
Back to article page

BMC Musculoskeletal Disorders

ISSN: 1471-2474

Contact us