Alterations in Surface Electromyography Are Associated with Subjective Masticatory Muscle Pain
Table 1
Mean and standard deviation (SD) of sEMG and subjective pain score relative to investigated muscles of the enrolled patients.
Occipital
Spread
Temporal
Mixed
n
8
20
19
3
sEMG
RAT (mean (SD))
2.99 (1.57)
2.93 (1.68)
2.77 (1.40)
2.27 (2.19)
0.905
LAT (mean (SD))
3.70 (1.90)
3.21 (1.84)
2.84 (1.63)
5.46 (0.26)
0.104
RMM (mean (SD))
1.65 (0.65)
2.65 (1.52)
2.02 (1.42)
3.25 (2.07)
0.185
LMM (mean (SD))
2.37 (1.65)
2.35 (1.28)
3.39 (1.48)
2.44 (1.05)
0.117
Subjective pain
RAT.pain (mean (SD))
2.00 (0.93)
1.70 (1.22)
1.68 (1.00)
1.33 (1.53)
0.826
LAT.pain (mean (SD))
1.88 (1.25)
1.70 (1.08)
1.37 (1.16)
3.00 (0.00)
0.132
RMM.pain (mean (SD))
0.88 (0.83)
1.60 (1.14)
0.95 (1.13)
2.00 (1.00)
0.133
LMM.pain (mean (SD))
1.38 (1.30)
1.45 (1.00)
2.16 (0.96)
1.33 (1.15)
0.129
sEMG: surface electromyography; RAT: right anterior temporal muscle; LAT: left anterior temporal muscle; RMM: right masseter muscle; LMM: left masseter muscle. Stratification according to headache is also shown.
