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Table 3 Ranges and mean values of each axis in each test (mean ± standard deviation and [confidence interval])

From: Reliability of accelerometric assessment of balance in children aged 6–12 years

Variable

OLCE

OLOE

DOL

NG

Vertical axis

Maximum

55.6 ± 11

[50.3–61.1]

42.1 ± 6.9

[39.5–43.8]

63.2 ± 14.3

[60.8–67.3]

79.2 ± 15.1

[72.4–81.1]

 

Minimum

0 ± 0

[0–0]

0 ± 0

[0–0]

0 ± 0

[0–0]

0 ± 0

[0–0]

 

Mean

7.5 ± 2.6

[5.2–9.8]

3.7 ± 1.4

[2.3–5.2]

8.6 ± 1.4

[5.6–11.6]

37.8 ± 0.8

[34.6–40.9]

Sagittal axis

Maximum

52.8 ± 11.4

[50.7–57.3]

47.7 ± 8.6

[44.3–51.7]

71.5 ± 13.4

[68.4–73.7]

40.8 ± 8.4

[37.6–43.9]

 

Minimum

1 ± 0.9

[0.2–1.7]

0.1 ± 0.1

[0–0.5]

0.1 ± 0.1

[0.1–0.7]

2 ± 0.6

[0.8–3.5]

 

Mean

12.4 ± 4.4

[10.1–14.8]

6.7 ± 3.4

[4.8–8.5]

11.7 ± 2.6

[8.9–14.5]

20.3

[18.6–22.1]

Perpendicular axis

Maximum

52.5 ± 9

[48.7–55.5]

35 ± 6.8

[33.5–41.4]

67 ± 11

[61.7–70.3]

50.9 ± 8.5

[47.7–53.3]

Minimum

3.7 ± 2.1

[1.1–5]

0.1 ± 0.1

[0–0.2]

0.3 ± 0.2

[0–0.8]

4 ± 3.2

[3–5.2]

 

Mean

19.5 ± 8.1

[16.1–19.9]

5 ± 2.6

[3.6–6.4]

8.2 ± 2.5

[5.9–10.5]

29.6 ± 5.1

[27.9–31.4]

Root Mean Square

Maximum

92.3 ± 19.5

[91.2–94.7]

70.6 ± 14.4

[66.8–73.9]

109.2 ± 23.9

[92.8–115.7]

96.5 ± 16.6

[88.5–101.2]

Minimum

2.2 ± 2.5

[0.8–3.7]

0.2 ± 0.1

[0–0.5]

0.4 ± 0.2

[0–0.8]

5.9 ± 3

[4.2–6.8]

Mean

19.5 ± 9.3

[15.5–23.6]

10.9 ± 6.6

[7.9–13.9]

19.7 ± 8.7

[14.7–24.7]

56.5 ± 11.1

[53–60]

  1. OLCE One leg with eyes closed, OLOE one leg with eyes open, DOL dynamic equilibrium in one leg, NG normal gait