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Table 1 LES and LMF muscle activity in each posture

From: Effects of arm and leg positions on lumbar multifidus muscle activity while on hands and knees or while standing

  

SFHE-HK

SAHA-HK

SFHE-S

SAHA-S

P-value

η2

LES

%MVC (mean ± SD)

33.1 ± 12.5

38.3 ± 8.9

30.3 ± 8.2

41.1 ± 8.5

P = 0.120

0.258

95% CI

23.5 to 42.7

31.5 to 45.1

24.1 to 36.6

34.5 to 47.6

LMF

%MVC (mean ± SD)

38.7 ± 11.0

53.1 ± 17.1a,b

34.8 ± 16.7

53.4 ± 13.1c,d

P = 0.001**

0.510

95% CI

30.3 to 47.1

39.9 to 66.2

22.0 to 47.7

43.3 to 63.4

  1. a SAHA-HK exhibited significantly higher values than SFHE-HK (P = 0.027*, r = 0.616), b SAHA-HK exhibited significantly higher values than SFHE-S (P = 0.004**, r = 0.795), c SAHA-S exhibited significantly higher values than SFHE-HK (P = 0.024*, r = 0.757), d SAHA-S exhibited significantly higher values than SFHE-S (P = 0.003**, r = 0.882). *P < .05, **P < .01, with statistical significance. η2, r: effect size, MVC maximum voluntary contraction. CI confidence interval