Skip to main content

Table 5 Differences at end of chewing in all measures between the first and the second session based on data from 31 participants

From: Experimental pain and fatigue induced by excessive chewing

 

40-min Trial

P-value

60-min Trial

P-value

First Session

Second Session

First Session

Second Session

Fatigue

15 (3)

13 (6)

0.12

17 (4)

13 (9.50)

0.05

Pain characteristics

 Pain Intensity

0 (3.5)

0 (5)

0.69

3 (5)

1 (4)

0.74

 Pain Area

36.00 (87.00)

0 (0)

0.002*

70.50 (139.25)

0 (66.00)

0.13

Pain Pressure Thresholds

 Masseter Muscles

97.50 (16.50)

94.50 (25.88)

0.83

98.50 (37.13)

97.00 (35.50)

0.51

 Temporal Muscles

94.50 (13.00)

103.00 (31.75)

0.19

88.75 (22.88)

93.00 (32.00)

0.34

 Index Finger (Reference)

91.50 (32.00)

88.25 (30.13)

0.30

102.00 (50.13)

107.50 (35.50)

0.96

Functional Measures

 Max Bite Force

97.10 (56.70)

105.30 (43.30)

0.20

76.10 (69.90)

99.90 (43.00)

0.12

 Max Mouth Opening

96.60 (6.60)

100.00 (5.30)

0.13

96.10 (8.30)

100.00 (17.80)

0.13

  1. The subjective fatigue was assessed in Borg’s RPE, the pain intensity (=peak pain) in numeric rating scale (NRS), the pain area in arbitrary units (au), the change in pressure pain threshold in percent (%), the change in maximum voluntary bite force in percent (%) and the change in maximum mouth opening capacity in percent (%). Data are expressed as median (IQR; interquartile range). P-values refer to the comparisons between sessions by Mann-Whitney Rank Sum test. * = significant difference P < 0.005 for subjective fatigue and pain intensity, < 0.013 for pain area and < 0.006 for the rest of the variables after applied Bonferroni Corrections