Table 2.

Simple linear regression analysis between changes in heart rate variability outcomes and changes in, body composition variables and cardiometabolic risk score

	∆ heart rate (bpm)			∆ Ln SDNN (ms)			∆ Ln RMSSD (ms)			∆ Ln stress score (ms)			∆ Ln S/PS ratio
	β	R2	P	β	R2	P	β	R2	P	β	R2	P	β	R2	p
∆ BMI (kg/m2)	− 0.025	< 0.001	0.844	− 0.006	< 0.001	0.961	0.101	< 0.001	0.419	0.051	< 0.001	0.686	− 0.030	< 0.001	0.809
∆ LMI (kg/m2)	− 0.182	0.017	0.153	0.387	0.150	0.001	0.439	0.193	< 0.001	− 0.326	0.107	0.009	− 0.414	0.172	< 0.001
∆ FMI (kg/m2)	0.157	0.009	0.220	− 0.347	0.121	0.005	− 0.370	0.137	0.003	0.299	0.090	0.017	0.362	0.072	0.003
∆ VAT volume (cm3)	0.142	0.004	0.269	− 0.293	0.086	0.019	− 0.295	0.082	0.023	0.267	0.072	0.034	0.299	0.090	0.017
∆ Cardiometabolic Risk Score	− 0.114	< 0.001	0.362	− 0.330	0.095	0.007	− 0.176	0.016	0.158	0.380	0.131	0.002	0.293	0.072	0.017

Bold values indicated P values of less than 0.05

∆ differences between post and pretest, β standardized regression coefficient, BMI body mass index, bpm beats per minute, cm centimeters, FMI fat mass index, kg kilograms, LMI lean mass index, Ln Napierian logarithm, m meters, p level of significance, R² adjusted determination coefficient, RMSSD square root of the mean squared differences between successive RR intervals, SDNN standard deviation of RR intervals, S/PS sympathetic/parasympathetic ratio, VAT visceral adipose tissue