Correlations between pain and results of TMJ depressor, cervical flexor and extensor muscles’ isometric strength, DNFE and MFIQ measurements

Variable TMJ depressor
muscle strength (kg)
Cervical flexor
muscle strength (kg)
Cervical extensor
muscle strength (kg)
DNFE (mmHg) MFIQ
Jaw pain Correlation
P value
–0.406b
0.004*
–0.309b
0.026*
–0.414b
0.002*
–0.548a
< 0.001*
0.467a
< 0.001*
Neck pain Correlation
P value
–0.380b
0.005*
–0.387b
0.005*
–0.380b
0.005*
–0.538a
< 0.001*
0.388a
0.004*

TMJ: temporomandibular joint, DNFE: deep neck flexors endurance, MFIQ: mandibular function impairment questionnaire.

*P < 0.05. aPearson r. bSpearman’s rho.

Korean J Pain 2024;37:164~177 https://doi.org/10.3344/kjp.23301
© Korean J Pain