Stochastic resonance whole body vibration increases perceived muscle relaxation but not cardiovascular activation: A randomized controlled trial

Table 2 Correlations between study variables

Variables	SR-WBVcondition	SBPpre	SBPpost	DBPpre	DBP post	HRpre	HRpost	Relax pre	Relaxpost	Age	Sex	BMI	Fitness	Smoking	Coffee
SR-WBV Condition
SBP pre	-0.36c
SBP post	-0.28a	0.83e
DBP pre	-0.18	0.63e	0.57e
DBP post	-0.22	0.59e	0.71e	0.68c
HR pre	-0.07	0.02	0.01	0.22	0.22
HR post	-0.06	0.03	0.07	0.21	0.24	0.76e
Relaxation pre	0.09	0.02	0.22	-0.04	0.01	0.04	-0.01
Relaxation post	-0.07	0.09	0.24	0.03	0.03	0.01	-0.04	0.84e
Age	-0.04	0.36c	0.40c	0.24	0.23	-0.03	-0.11	0.26a	0.26a
Sex	-0.01	0.26a	0.36c	-0.07	0.05	-0.16	-0.1	0.28a	0.15	0.29a
BMI	-0.17	0.08	0.14	-0.14	0	-0.32c	-0.19	-0.01	0.02	0.15	0.45e
Fitness	0.01	0.15	0.19	-0.13	-0.2	-0.19	-0.16	0.41c	0.38c	0.30a	0.34c	0.24
Smoking (number of cigarettes)	-0.09	0.10	0.07	-0.12	0.06	0.25a	0.37c	-0.01	-0.07	0.07	0.36c	0.28a	-0.02
Cups of coffee before training	0.07	0.09	0.01	-0.01	0.01	0.07	0.16	-0.28a	-0.28a	0.20	0.16	0.16	-0.18	0.33c
Back, neck or shoulder pain in last 12 mo	-0.03	-0.18	-0.30a	-0.04	-0.14	-0.08	0.03	-0.55e	-0.59e	-0.09	-0.27a	0.02	-0.26a	-0.03	0.24

^aP < 0.05,

^cP < 0.01,

^eP < 0.001: Correlations coefficients that significantly differ from zero. SR-WBV: Stochastic resonance whole body vibration; SBP: Systolic blood pressure; DBP: Diastolic blood pressure; HR: Heart rate.