Table 2.

Intra-patient variability

Measurements Standing position	Intra-patient variability A vs B
n = 12	CV (%)	r	p
SV (mL) land	13.9	0.82	< 0.01
SV (mL) WWI	8.1	0.92	< 0.001
LVEF (%) land	6.9	0.85	< 0.001
LVEF (%) WWI	8.5	0.83	< 0.001
LVEDV (mL) land	13.1	0.88	< 0.001
LVEDV (mL) WWI	12.8	0.84	< 0.01
LV TVTI s land	10.6	0.89	< 0.001
LV TVTI s WWI	7.3	0.83	< 0.01
RV TVTI s land	6.3	0.95	< 0.001
RV TVTI s WWI	10.7	0.77	< 0.01

A: Baseline, B: After 8 weeks of control period without changes in daily lifestyle CV, coefficient of variation; LV, left ventricular; LVEDV, left ventricular enddiastolic volume; r, correlation; RV, right ventricle; SV, stroke volume; TVTI, tissue velocity time integral; WWI; warm water immersion.