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Table 2 ABF effect on SDA parameters Parameters. K and ΔTc 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

  K (NO-ABF) [mm2] Δtc (NO-ABF) [s] K (ABF) [mm2] Δtc (ABF) [s] K % difference Δtc % difference
Subj. #1 100 (57) 0.42 (0.21) 86 (15) 0.38 (0.17) -14.6 -9.9
Subj. #2 70 (29) 0.51 (0.31) 66 (20) 0.41 (0.34) -7.4 -20.5
Subj. #3 75 (41) 0.52 (0.29) 65 (20) 0.29 (0.12) -13.3 -45.3
Subj. #4 80 (21) 0.81 (0.46) 70 (14) 0.39 (0.14) -11.1 -52.0
Subj. #5 47 (13) 0.32 (0.08) 39 (10) 0.26 (0.16) -18.1 -19.7
Subj. #6 64 (12) 0.27 (0.08) 61 (9) 0.20 (0.09) -5.7 -26.1
Subj. #7 32 (7) 0.17 (0.06) 34 (9) 0.09 (0.01) 6.6 -47.4
Subj. #8 35 (14) 0.29 (0.09) 38 (13) 0.19 (0.06) 5.8 -34.3
Average 63 (23) 0.41 (0.20) 57 (18.5) 0.27 (0.11) -9.3 (9.2) -33.9 (15.3)