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Table 1 ABF effect on sway parameters Parameters. COP-RMS, F95%, and Acc-RMS are reported, subject-by-subject, for trials with and without ABF. Percentage differences between these two conditions are also reported. Standard deviations are indicated in parenthesis.

From: Influence of a portable audio-biofeedback device on structural properties of postural sway

  COP-RMS
(NO – ABF) [mm]
F95 %
(NO – ABF) [Hz]
Acc-RMS
(NO – ABF) [mm/s2]
COP-RMS
(ABF) [mm]
F95 %
(ABF) [Hz]
Acc-RMS
(ABF) [mm/s2]
COP-RMS
%difference
F95%
%difference
Acc-RMS
%difference
Subj. #1 10.79 (2.84) 0.99 (0.05) 137 (48) 9.57 (1.86) 1.18 (0.16) 118 (13) -11.2 19.1 -14.1
Subj. #2 9.91 (2.77) 1.20 (0.29) 142 (27) 9.50 (2.26) 1.30 (0.20) 120 (23) -4.1 8.7 -15.6
Subj. #3 9.21 (2.94) 1.16 (0.14) 121 (23) 8.61 (1.42) 1.37 (0.07) 113 (21) -6.5 18.0 -7.0
Subj. #4 10.23 (1.50) 1.43 (0.08) 117 (30) 8.80 (1.74) 1.49 (0.12) 100 (12) -13.9 4.1 -14.6
Subj. #5 8.50 (0.93) 1.49 (0.22) 143 (46) 6.90 (1.35) 1.53 (0.28) 115 (19) -18.8 2.6 -19.3
Subj. #6 9.62 (1.55) 1.34 (0.30) 126 (43) 7.35 (0.88) 1.34 (0.09) 89 (20) -23.6 0.0 -29.2
Subj. #7 6.37 (1.48) 1.60 (0.07) 64 (8.3) 5.19 (0.59) 1.94 (0.12) 51 (4.7) -18.5 20.8 -20.1
Subj. #8 6.08 (1.19) 1.78 (0.25) 48 (6.3) 6.75 (1.41) 1.37 (0.16) 39 (3.8) 10.9 -23.1 -17.3
Average 8.84 (1.75) 1.37 (0.26) 112 (36) 7.83 (1.54) 1.44 (0.15) 93 (31) -10.7 (10.92) 6.2 (14.4) -17.2 (6.3)