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Table 5 Pressure Pain Threshold (kg/cm2) at 3 Sites (A, B, and C) of Brachioradialis Muscles (combined right and left sides) in Children with Different Activity Levels

From: Mechanical pain sensitivity of deep tissues in children - possible development of myofascial trigger points in children

  Active Children Normal children P values a
All Children - age 7 -11 (n = 736) n = 160 n = 576  
   % PPT difference at A 27.5 ± 9.8 25.7 ± 11.9 P > .05
   % PPT difference at B 17.7 ± 8.4 17.8+13.8 P > .05
7 years-old (n = 142) n = 4 n = 138  
   % PPT difference at A 33.4 ± 9.5 19.5 ± 13.2 P > .05
   % PPT difference at B 39.2 ± 25.4 23.4 ± 50.4 P > .05
8 years-old (n = 150) n = 20 n = 130  
   % PPT difference at A 30.4 ± 9.8 27.5 ± 11.5 P > .05
   % PPT difference at B 46.8 ± 25.2 45.4 ± 37.1 P > .05
9 years-old (n = 176) n = 40 n = 136  
   % PPT difference at A 28.9 ± 11.3 28.9 ± 10.7 P > .05
   % PPT difference at B 50.0 ± 49.4 57.0 ± 42.5 P > .05
10 years-old (n = 154) n = 52 n = 102  
   % PPT difference at A 26.3 ± 7.4 27.3 ± 9.6 P > .05
   % PPT difference at B 36.8 ± 24.6 40.7 ± 27.0 P > .05
11 years-old (n = 114) n = 44 n = 70  
   % PPT difference at A 26.0 ± 10.6 25.7 ± 11.2 P > .05
   % PPT difference at B 36.4 ± 21.6 43.9 ± 33.1 P > .05
  1. Active children = children doing additional regular sports activity after school.
  2. Normal children = children doing no additional sports activity after school.
  3. PPT = pressure pain threshold (kg/cm2).
  4. % PPT difference at A = [(PPT at C) - (PPT at A)]/(PPT at C) × 100%
  5. % PPT difference at B = [(PPT at C) - (PPT at B)]/(PPT at C) × 100%
  6. a tested with Student's t-test.