Effectiveness of interval training compared with endurance training in cardiac rehabilitation

Abstract

Anaerobic endurance training (AET) can improve sympathomimetic hyperactivity, and anaerobic interval training (AIT) is recommended for patients who cannot exercise due to exertional breathlessness and leg fatigue. However, the difference in sympathetic nerve activation (SNA) and parasympathetic nerve activation (PNA) during AIT and AET is unclear. The aim of this study is to investigate the differences between endurance and interval trainings. We studied three patients (63-73 years) assigned to AIT which exercise/pause phase is 60/120 seconds (AIT120) and AET of 10 minutes duration. Systolic blood pressure, heart rate (HR), and rate pressure product (as an index of SNA) and oxygen uptake, tidal volume, respiratory rate, and minute ventilation were measured. As a result, these parameters in AET were increased compared with those of AIT120 among the subjects. While, high frequency component of frequency distribution in HR (HF) in AET was decrease compared with that in AIT120 among subject. We concluded that AIT inhibited SNA more effectively compared with AET and AIT may be safe for cardiac rehabilitation.

Aerobic Interval Training and Cardiometabolic Health in Patients with Type 2 Diabetes: A Meta-Analysis

“…This corresponds well with the finding from García-Hermoso et al who observed similar results albeit in overweight and obese youth (Garcia-Hermoso et al, 2016 ). It is speculated that this might be partly explained by the evidence that INT could result in a higher reduction of sympathetic nervous activity (Hanada et al, 2011 ; Ciolac, 2012 ) as well as a larger improvement in endothelial function than MICT (Ciolac, 2012 ; Mitranun et al, 2014 ; Ramos et al, 2015 ), both factors are closely related to SBP control (Wallace et al, 2007 ; Flaa et al, 2008 ). Moreover, the INT-induced increases in shear stress might be another mechanical possibility (Adams et al, 2017 ).…”