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. 2014 Jun 10;14:144. doi: 10.1186/1471-2431-14-144

Table 1.

Test-retest reproducibility of centre of pressure path length during four different tests of static balance

  n NWB/AMTI Mean COPL (cm (SD)) NWB/AMTI Mean COP velocity (cm (SD)) NWB/AMTI CCC (95% CI) Mean diff (cm (SD)) LOA (cm) SEM (cm) MDC (cm (%))
Bilat., EO
 
 
 
 
 
 
 
 
COPL1
54/52
59.7 (13.4)/53.7 (12.3)
1.99 (0.4)/1.79 (0.4)
 
 
 
 
 
COPL2
 
59.9 (13.9)/51.9 (11.4)
1.99 (0.4)/1.73 (0.4)
 
 
 
 
 
NWB
 
 
 
0.76 (0.65-0.87)
0.02 (8.7)
-17.0-17.0
6.1
16.9 (28.2)
AMTI
 
 
 
0.79 (0.69-0.89)
1.9 (7.5)
-12.8-16.5
5.3
14.7 (27.3)
Dom. leg, EO
 
 
 
 
 
 
 
 
COPL1
53/51
129.3 (29.1)/135.2 (34.3)
4.31 (1.0)/4.51 (1.1)
 
 
 
 
 
COPL2
 
128.9 (34.9)/133.2 (33.8)
4.30 (1.2)/4.44 (1.1)
 
 
 
 
 
NWB
 
 
 
0.83 (0.75-0.91)
0.5 (18.6)
-35.8-36.7
13.1
36.3 (28.1)
AMTI
 
 
 
0.86 0.78-0.93)
2.0 (18.2)
-33.6-37.6
12.8
35.6 (26.3)
Non-dom. leg, EO
 
 
 
 
 
 
 
 
COPL1
52/51
127.6 (27.3)/137.4 (31.7)
4.25 (0.9)/4.58 (0.7)
 
 
 
 
 
COPL2
 
128.8 (29.5)/130.5 (30.0)
4.29 (1.0)/4.35 (1.0)
 
 
 
 
 
NWB
 
 
 
0.77 (0.66-0.88)
-2.0 (18.9)
-38.9-34.9
13.3
36.9 (28.6)
AMTI
 
 
 
0.80 (0.70-0.90)
6.9 (18.4)
-29.2-43.0
13.0
36.1 (26.3)
Bilat. EC
 
 
 
 
 
 
 
 
COPL1
53/52
83.7 (16.8)/76.1 (19.5)
2.76 (0.6)/2.54 (0.7)
 
 
 
 
 
COPL2
 
84.6 (16.5)/74.5 (18.7)
2.81 (0.5)/2.48 (0.6)
 
 
 
 
 
NWB
 
 
 
0.76 (0.65-0.88)
-1.0 (11.5)
-23.5–21.4
8.1
22.4 (26.5)
AMTI       0.83 (0.75-0.92) 1.7 (11.1) -19.9-23.2 7.7 21.5 (28.1)

NWB: Nintendo Wii Board. AMTI: AMTI force platform, Bilat: bilateral stance, Dom: dominant, Non-dom: non-dominant, COPL: Centre Of Pressure path Length, SD: Standard Deviation, COP speed: Centre of pressure velocity, CCC: Concordance Correlation Coefficient, CI: Confidence Interval, Mean diff: Mean difference of the means, LOA: Limits of Agreement, SEM: Standard Error of the Measurement, MDC: Minimal Detectable Change, EO = eyes open, EC = eyes closed, COPL1 = COPL test, COPL2 = COPL re-test.