BMC Musculoskeletal Disorders

Table 3 Comparison of MARP and DP among groups in each condition

From: Task-specific fear influences abnormal trunk motor coordination in workers with chronic low back pain: a relative phase angle analysis of object-lifting

	CLBP (n = 31)			HC (n = 20)			Repeated measures ANOVA
	10% condition	30% condition	50% condition	10% condition	30% condition	50% condition		F	p-value
MARP	15.97 (6.47)	15.83 (6.60)	14.70 (6.58)	16.05 (4.97)	16.64 (4.86)	16.08 (5.20)	Interaction	0.14	0.87
Flexion phase							Weight	0.25	0.78
Flexion phase							Group	0.56	0.46
MARP	15.61 (5.92)	18.52 (7.49)	18.60 (6.43)^#	16.43 (4.89)	17.97 (6.16)	25.46 (6.09)	Interaction	4.56	< 0.05
Extension phase							Weight	10.86	< 0.01
Extension phase							Group	4.97	< 0.05
DP	0.13 (0.03)	0.13 (0.04)	0.12 (0.04)	0.13 (0.03)	0.14 (0.03)	0.14 (0.03)	Interaction	0.78	0.46
Flexion phase							Weight	0.77	0.47
Flexion phase							Group	2.78	0.10
DP	0.13 (0.04)	0.15 (0.04)	0.15 (0.03)	0.13 (0.03)	0.15 (0.03)	0.16 (0.03)	Interaction	0.30	0.89
Extension phase							Weight	5.34	< 0.01
Extension phase							Group	0.32	0.57

Values are mean (SD). Conditions are explained in the Table 2 footnote
^#p < 0.006 between CLBP and HC groups

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