Relationship Between Heart Rate Recovery After Exercise and Maximal Oxygen Uptake inSedentary Patients with Type 2 Diabetes

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Abstract

AIMS: Heart rate recovery after exercise (HRR) is an estimate of autonomic modulation of the heart, and has beenshown to be inversely associated with type 2 diabetes. Type 2 diabetes is associated with decreased maximaloxygen consumption (VO2max). Aim of our study was to assess the relationship between HRR and VO2max insedentary patients with type 2 diabetes.METHODS: Maximal exercise testing to determine VO2max (ml ∙ Kg-1 ∙ min-1) was performed in 16 sedentarypatients with type 2 diabetes (DP) and in 16 age-matched sedentary healthy controls (HS). HRR (bpm) 2 min aftercessation of the exercise was recorded. Simple linear regression was used to assess the relations between HRRand VO2max.RESULTS: VO2max and HRR were significantly lower in DP compared to HS (P = 0.002 and P = 0.008respectively). A correlation between HRR and VO2max has been found, stronger in DP (r = 0.672, P = 0.004) thanHS (r = 0.620, P = 0.01).CONCLUSIONS: Our study suggests that regular physical activity aimed to improve the levels of VO2max insubjects with diabetes may improve the HRR and reduce the risk of cardiovascular events.
Original languageEnglish
Pages (from-to)2113-2121
Number of pages9
JournalExperimental and Clinical Cardiology
Volume20
Publication statusPublished - 2014

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