Table 3.

Results of univariate and stepwise multivariate analysis for untwisting rate

Variable	Univariate analysis				Multivariate analysis
	Coefficient (Slope)	Std Error	rpartial	P	Coefficient (Slope)	Std Error	rpartial	P
Age	−0.21	0.1	− 0.16	0.05*	− 0.25	0.1	− 0.2	0.015
Sex	−9.7	3.1	− 0.24	0.002*	−11.2	3.1	−0.28	0.0005
Body mass index	−0.69	0.32	−0.17	0.03*	−0.43	0.32	−0.11	0.19
Heart rate	0.064	0.13	0.04	0.62
Systolic blood pressure	0.11	0.11	0.08	0.34
Diastolic blood pressure	0.042	0.15	0.02	0.78
Exercise training	0.14	3.2	0.004	0.96

* Variables with a P-value < 0.1 in univariate analysis were included in the multivariate analysis