Principal Component Analysis of Gait Kinematics Data in Acute and Chronic Stroke Patients

Table 2

The values of PCA for the healthy subjects and hemiplegic individuals divided into four groups based on the velocity of gait. Bold numbers show the category with significant difference (𝑃<0.05). Examples of “good” and “bad” recovery are shown in Figure 6.

GROUP		F1 + F2	F1	F2
HEALTHY		88.3±2.7	58.2±2.7	29.2±2.0
𝑣>0.35 m/s	CG	86.82±4.1	59.38±3.8	35.31±4.7	Non paretic leg
	AG	86.46±5.0	57.99±3.7	32.03±4.9
𝑣<0.35 m/s	CG	𝟗𝟒.𝟎𝟏±𝟒.𝟗 *	𝟔𝟑.𝟖𝟖±𝟑.𝟖 *	𝟑𝟖.𝟒𝟗±𝟓.𝟑 *
	AG	89.01±3.9	56.06±6.0	30.95±5.0
𝑣>0.35 m/s	CG	𝟗𝟐.𝟗𝟗±𝟒.𝟐 *	𝟔𝟕.𝟎𝟒±𝟑.𝟔 *	𝟏𝟗.𝟗𝟕±𝟑.𝟐 *	Paretic leg
	AG	𝟗𝟓.𝟕𝟕±𝟒.𝟒 *	𝟔𝟔.𝟑𝟏±𝟓.𝟐 *	𝟐𝟗.𝟒𝟔±𝟑.𝟓 *
𝑣<0.35 m/s	CG	𝟗𝟖.𝟏𝟓±𝟏.𝟑 *	𝟔𝟒.𝟖𝟗±𝟓.𝟏 *	𝟐𝟎.𝟗𝟔±𝟑.𝟒 *
	AG	𝟗𝟏.𝟗𝟑±𝟑.𝟔 *	𝟓𝟔.𝟓𝟓±𝟒.𝟒 *	𝟑𝟓.𝟑𝟗±𝟒.𝟏 *