Effect of whole-body vibration for 3 months on arterial stiffness in the middle-aged and elderly

Figures & data

Figure 1 Flowchart of this trial.

Abbreviations: baPWV, brachial-ankle pulse wave velocity; BP, blood pressure; HR, heart rate.

Table 1 Baseline characteristics of the sample (mean ± standard deviation)

	WBV	CON	P-value
Number (N=38)	19	19	–
Sex, M:F	9:10	8:11	1.000
Age, years	60.1±5.9	63.6±9.8	0.188
Body mass index, kg/m^2	23.5±1.9	22.9±1.9	0.440
Rt baPWV, cm/second	1,527.4±263.8	1,616.6±440.6	0.453
Lt baPWV, cm/second	1,514.9±253.9	1,639.9±446.1	0.296
Rt SYS BP, mmHg	123.2±9.9	125.1±18.3	0.670
Lt SYS BP, mmHg	120.9±12.1	123.2±17.4	0.653
Rt DIA BP, mmHg	79.9±7.4	80.4±7.9	0.732
Lt DIA BP, mmHg	78.3±8.3	78.3±8.4	1.000
Rt MAP, mmHg	94.1±7.6	95.1±9.9	0.654
Lt MAP, mmHg	92.3±8.7	92.9±10.6	0.842
Heart rate, beats/minute	72.1±11.4	73.2±11.2	0.754

Abbreviations: WBV, whole-body vibration; CON, control; Rt, right; baPWV, brachial-ankle pulse wave velocity; Lt, left; SYS BP, systolic blood pressure; DIA BP, diastolic blood pressure; MAP, mean artery pressure.

Table 2 Comparative effects after 3 months on blood pressure and heart rate in the WBV and CON groups (mean ± standard deviation)

	Within groups						Between-group P-value
	WBV			CON
	Pre	Post	P-value	Pre	Post	P-value
Rt SYS BP, mmHg	123.2±9.9	121.3±12.2	0.462	125.1±18.3	121.9±16.5	0.207	0.711
Lt SYS BP, mmHg	120.9±12.1	120.8±11.7	0.958	123.2±17.4	125.1±17.9	0.564	0.637
Rt DIA BP, mmHg	79.9±7.4	80.9±10.9	0.694	80.4±7.9	79.9±9.9	0.810	0.643
Lt DIA BP, mmHg	78.3±8.3	80.1±8.8	0.449	78.3±8.4	77.0±10.5	0.481	0.225
Rt MAP, mmHg	94.1±7.6	94.2±10.9	0.964	95.1±9.9	93.8±10.9	0.474	0.630
Lt MAP, mmHg	92.3±8.7	93.5±9.1	0.571	92.9±10.6	90.9±11.5	0.121	0.184
Heart rate, beats/minute	72.1±11.4	73.4±10.4	0.508	73.2±11.2	76.5±10.7	0.259	0.581

Abbreviations: WBV, whole-body vibration; CON, control; Rt, right; SYS BP, systolic blood pressure; Lt, left; DIA BP, diastolic blood pressure; MAP, mean artery pressure.

Table 3 Comparative effects after 3 months on baPWV in the WBV and CON groups (mean ± standard deviation)

WBV and CON, cm/second	Within groups			Between group		Change in baPWV (%)	P-value
	Pre	Post	P-value	Diff	P-value
WBV Rt baPWV	1,527.4±263.8	1,462.3±204.2	0.014*	−65.1±104.7	0.164	−3.7%±6.1%	0.091
CON Rt baPWV	1,616.7±440.6	1,615.9±399.1	0.958	−0.7±167.1		0.8%±2.1%
WBV Lt baPWV	1,514.9±253.8	1,452.2±180.4	0.041*	−62.7±123.9	0.382	−3.4%±6.5%	0.240
CON Lt baPWV	1,639.9±446.1	1,616.6±388.9	0.504	−23.3±149.2		−0.7%±1.8%

Notes:

* P<0.05; change in baPWV (%) = (post baPWV–pre baPWV)/pre baPWV × 100%.

Abbreviations: WBV, whole-body vibration; CON, control; Rt, right; baPWV, brachial-ankle pulse wave velocity; Lt, left

Figure 2 Bilateral brachial–ankle pulse wave velocity (baPWV) of pretest and posttest after 3 months of whole-body vibration group (WBV) and control group (CON). *P<0.05 versus pre-test.

Abbreviations: Rt, right; Lt, left.