Table 3. Factor analysis. Total variance explained. Extraction Method: Principal Component Analysis.

Components	Initial self values and sums of squared loadings for extraction			Sum of squared loadings of the rotation
	Total	% variante	% cumulative	Total	% variante	% cumulative
Ext. Barriers Lack of time	3,014	27,400	27,400	2,421	22,009	22,009
Internal Barriers	1,243	11,301	38,700	1,577	14,334	36,343
Ext. Barriers Lack of social support	1,201	10,917	49,617	1,460	13,274	49,617