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. 2016 Dec 1;4:2700211. doi: 10.1109/JTEHM.2016.2620177

TABLE 3. Statistical Analysis of the Transition Features.

Domain Feature Sit-to-stand transitions from the non-dominant hand (82 participants)
Mean 95% CI Adjusted p-valuea hICC (95% CI)
Non-fallers Fallers Non-fallers Fallers
Time bPeak_VT, [g] 1.25 1.18 1.23–1.28 1.11–1.25 0.136 0.81 (0.76–0.85)
Peak_AP, [g] 1.02 0.96 0.99–1.05 0.88–1.04 0.391 0.90 (0.87–0.93)
Peak_ML, [g] 0.72 0.78 0.69–0.74 0.72–0.85 0.034 0.87 (0.82–0.90)
Jerk_SVM 0.0021 0.0025 0.0021–0.0023 0.0022–0.0029 0.097 0.77 (0.72–0.82)
Median_SVM, [g] 1.0081 1.0050 0.9992–1.0171 0.97–1.03 0.220 0.82 (0.78–0.87)
dTTFS, [s] 1.72 1.75 1.62–1.82 1.49–2.02 0.968 0.81 (0.76–0.85)
fAFS, [g] 1.13 1.18 1.07–1.19 1.01–1.35 0.753 0.75 (0.70–0.81)
Oscillation_ML 0.0026 0.0028 0.0023–0.0029 0.0021–0.0035 0.015* 0.80 (0.76–0.85)
Oscillation_VT 0.0029 0.0028 0.0024–0.0035 0.0024–0.0033 0.097 0.82(0.78–0.87)
Oscillation_AP 0.0059 0.0057 0.0051–0.0067 0.0039–0.0075 0.199 0.82 (0.79–0.87)
Frequency gAS 0.0078 0.0059 0.0070–0.0085 0.0051–0.0066 0.020* 0.83 (0.77–0.88)
hIH_VT 25.5 23.4 24.3–26.7 18.4–28.6 0.005* 0.59 (0.52–0.67)
IH_AP 16.4 20.5 15.6–17.1 15.1–25.6 0.253 0.85 (0.81–0.89)
IH_ML 12.0 15.4 11.1–12.9 11.7–19.1 0.585 0.77 (0.72–0.83)
iFF_VT 1.29 1.31 1.22–1.38 1.17–1.44 0.168 0.80 (0.75–0.85)
Entropy_VT 5.22 5.15 5.17–5.26 5.01–5.29 0.002* 0.82 (0.77–0.86)
Entropy_AP 5.01 5.04 4.96–5.05 4.91–5.17 0.591 0.92 (0.90–0.94)
Entropy_ML 4.89 4.91 4.85–4.94 4.78–5.04 0.591 0.88 (0.85–0.91)
Energy_VT 0.81 0.65 0.79–0.84 0.59–0.71 p<0.001* 0.89 (0.87–0.93)
Energy_AP 0.32 0.37 0.31–0.34 0.33–0.41 0.032 0.82 (0.77–0.86)
Energy_ML 0.19 0.25 0.18–0.20 0.22–0.29 0.005* 0.80 (0.76–0.84)
a

P-values adjusted for the multiple comparison;

b

VT depicts X axis of the local coordination system of the sensor, AP is the Y axis, while ML is the Z axis;

cTTFS = Time To First Arm Swing;

d

AFS = Amplitude of the First Step;

eAS = Amount of Support;

f

IH = Index of Harmonicity;

g

FF = Fundamental Frequency;

h

ICC = Interclass correlation coefficient; P-values depicted with

*

are lower than the critical Benjamini-Hochberg p-value (p<0.021).