Table 3

Final factor loadings after a forced two factor solution with varimax rotation and exclusion of items

	BAS–upper extremity		BAS–lower extremity		KANS–upper extremity
	Factor 1	Factor 2	Factor 1	Factor 2	Factor 1	Factor 2
Factor loadings ⩾0.5 are given in bold.
*Eigenvalues refer to the total variance explained by each factor.
†Percentage of the variance explained by each factor before and after varimax rotation.
BAS, musculoskeletal disorders study; KANS, arm, neck, and shoulder study.
a Standing	0.68	0.08	0.72	−0.10	0.73	0.06
d Walking	0.65	−0.08	0.71	−0.12	0.66	−0.01
e Kneeling/squatting	0.75	0.00	0.79	0.15	0.73	0.10
k Hands above shoulders	0.67	0.22	0.67	0.27	0.68	0.14
l Hands below knees	0.73	0.12	0.74	0.20	0.78	0.02
m Moving loads (>5 kg)	0.81	0.10	0.82	0.06	0.81	0.08
n Moving loads (>25 kg)	0.67	0.09	0.74	0.03	0.75	0.02
o Exert force with arms	0.86	0.20	0.86	0.13	0.83	0.20
p Maximal force exertions	0.82	0.24	0.78	0.18	0.80	0.21
q Physical hard work	0.80	0.20	0.85	0.15	0.84	0.16
w Squatting often	0.71	0.14	0.69	0.25	0.69	0.11
y Sitting, moving on knees	0.55	−0.04	0.65	0.12	0.58	0.06
f Repetitive movement	0.16	0.80	0.19	0.77	0.12	0.81
h Neck bent forward	0.18	0.69	0.26	0.71	0.19	0.71
i Turning/bending neck	0.20	0.71	0.29	0.71	0.20	0.74
j Wrists bent or twisted	0.21	0.72	0.10	0.80	0.15	0.76
r Static posture	−0.12	0.79	−0.10	0.81	−0.11	0.79
z Repetitive tasks arms/hands	−0.03	0.81	−0.07	0.82	0.02	0.80

Eigenvalue*	7.14	3.06	7.62	3.28	7.23	3.24
Variance explained before rotation†	39.7%	17.0%	42.36%	18.2%	40.2%	18.0%
Variance explained after rotation†	36.3%	20.3%	39.1%	21.5%	37.5%	20.6%
Total variance explained	56.6%		60.6%		58.2%