Right ventricle free wall mechanics in metabolic syndrome without type-2 diabetes: effects of a 3-month lifestyle intervention program

Table 4 Right ventricle free wall longitudinal strains and strain-rates

Variables	Controls (n = 40)	MetS (n = 39)	MetS
Variables	Controls (n = 40)	MetS (n = 39)	Baseline (n = 33)	Follow-up (n = 33)
RV strain (%)
RV GLS	−25.7 ± 4.9	−21.4 ± 4.5***	−21.8 ± 3.8	−24.3 ± 4.0##
Basal segment	−27.1 ± 7.1	−23.4 ± 5.1*	−23.7 ± 4.7	−24.7 ± 7.0
Mid segment	−25.4 ± 5.4	−20.9 ± 5.0***	−21.1 ± 4.7	−23.6 ± 4.2#
Apical segment	−24.7 ± 6.1	−19.7 ± 6.0***	−20.1 ± 5.8	−23.7 ± 5.4##
RV GLS TTP (ms)	94 ± 6	92 ± 10	93 ± 10	93 ± 8
RV global systolic SR (.s⁻¹)	−1.8 ± 0.4	−1.2 ± 0.4***	−1.2 ± 0.4	−1.5 ± 0.4##
RV global systolic SR TTP (ms)	51 ± 6	50 ± 9	48 ± 9	50. ± 10
RV global diastolic SR (.s⁻¹)	1.7 ± 0.5	1.3 ± 0.3**	1.3 ± 0.3	1.6 ± 0.4##
RV global diastolic SR TTP (ms)	123 ± 10	121 ± 16	122 ± 16	118 ± 14

GLS: global longitudinal strain calculated from the mean of the basal, mid and apical segments of the right ventricle free wall, RV: right ventricular, SR: strain rate, TTP: time to peak. Significantly different from controls: *P < 0.05, **P < 0.01, ***P < 0.001. Significantly different from baseline in MetS: # P < 0.05, ## P < 0.01.

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