Three months of high-intensity interval training increased left ventricular end-diastolic volume (P=0.008) and stroke volume (P=0.02) during exercise in adults with type 2 diabetes.
Does 3 months of high-intensity interval training improve left ventricular function during exercise in adults with type 2 diabetes?
Three months of high-intensity interval training improves left ventricular filling and emptying during exercise in adults with type 2 diabetes, potentially reversing early cardiac consequences of the disease.
p-value: P=0.008 for LVEDV; P=0.02 for LVSV
Type 2 diabetes is associated with reduced left ventricular reserve. It is unclear whether exercise training improves left ventricular function in people with type 2 diabetes. PURPOSE: This study aimed to determine whether 3 months of high-intensity interval training (HIIT) improves left ventricular function during exercise in adults with type 2 diabetes. METHODS: Participants performed a V˙O2peak test and received a DXA scan and total blood volume measurement at baseline. Left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV), and left ventricular stroke volume (LVSV) were then measured at rest and during low- and moderate-intensity semirecumbent exercise in adults with type 2 diabetes before and after 3 months of HIIT (n = 11) or no training (control) (n = 5). The effects of HIIT were determined using repeated-measures ANOVA. RESULTS: HIIT increased V˙O2peak by approximately 15% (P 0.05). HIIT augmented the reduction in LVESV from rest to moderate-intensity exercise (P 0.05). CONCLUSIONS: HIIT training increased the LVSV response to exercise in adults with type 2 diabetes. These data suggest that HIIT can improve LV filling and emptying during exercise and reverse early cardiac consequences of type 2 diabetes.
Wilson et al. (Wed,) conducted a other in Type 2 diabetes (n=16). High-intensity interval training (HIIT) vs. No training (control) was evaluated on Left ventricular end-diastolic volume (LVEDV) and left ventricular stroke volume (LVSV) during exercise (p=P=0.008 for LVEDV; P=0.02 for LVSV). Three months of high-intensity interval training increased left ventricular end-diastolic volume (P=0.008) and stroke volume (P=0.02) during exercise in adults with type 2 diabetes.
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