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Table 1 Statistical results of Spasms and NEMG in relaxation period

From: Spasm and flexion-relaxation phenomenon response to large lifting load during the performance of a trunk flexion-extension exercise

Lifting Load (kg)

Spasms

NEMG(%MVC) (Mean(SD))

Case

prevalence

Absolute (%MVC)

Normalized

0

0

0

1.05(0.21)

1.00(0.00)

15

10a**

45%a**

1.87(0.33) a**

1.78(0.09) a**

20

15a**b*

68%a**b*

2.13(0.32) a**

2.03(0.10) a**b*

25

18a**b**c*

82% a**b**c*

2.37(0.40) a**b**

2.26(0.12) a**b**c*

  1. ** P < 0.01;*P < 0.05 (a = vs. 0 kg; b = vs. 15 kg; c = vs. 20 kg). (NEMG = mean normalized EMG)