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Table 2 RMS of left biceps brachii of preterm newborns placed in the Kangaroo position

From: Effect of the kangaroo position on the electromyographic activity of preterm children: a follow-up study

Intervals

RMS X ¯ ± DP

Differences between the RMS means

%∆

0 h

36.6 ± 9.7

  
  

3.9

10.65

24 h

40.5 ± 6.9

  
  

2.9

7.16

48 h

43.4 ± 7.5

  
  

3.7

8.52

72 h

47.1 ± 6.5

  
  

5.8

12.10

96 h

52.9 ± 8.5

  
  

1.3

2.45

TEA

54.2 ± 11.2

  
  1. Comparisons: Analysis of variance for repeated measurements: F(5,174) = 27.56; p < 0.001.
  2. Tukey Test for multiple comparisons (each pair of intervals – consecutive or not): 0 h x 48 h (p = 0.03); 0h x 72 h (p < 0.001); 0h x 96 h (p < 0.001); 0h x TEA (p < 0.001); 24 h x 72 h (p = 0.005); 24 h x 96 h (p < 0.001); 24 h x TEA (p < 0.001); 48 h x 96 h (p < 0.001); 48 h x TEA (p < 0.001); 72 h x 96 h (p = 0.002); 72 h x TEA (p = 0.002).
  3. Only statistically significant figures are presented here.
  4. Abbreviations: RMS, Root Mean Square; TEA, Term equivalent age.