The effects of HIIT appear to be comparable to those of continuous exercise in relation to functional and cardiovascular responses .
OBJECTIVE To evaluate the effects of high-intensity interval training ( HIIT ) , in comparison with those of continuous exercise , on functional capacity and cardiovascular variables in patients with COPD , through a systematic review and meta- analysis of r and omized controlled trials .
Interval training compared with continuous training in patients with COPD.
The aim of this study was to compare the effects of interval training ( 3-min intervals ) with continuous training on peak exercise capacity ( W peak ) , physiological response , functional capacity , dyspnoea , mental health and health-related quality of life ( HRQoL ) in patients with moderate or severe COPD . Sixty patients exercised twice weekly for 16 weeks after r and omisation to interval- or continuous training . Target intensity was 80 % of baseline W peak in the interval group ( I-group ) and 65 % in the continuous group ( C-group ) . Patients were tested by spirometry , ergometer cycle test , cardiopulmonary test and a 12 min walk test . Dyspnoea was measured by the dyspnoea scale from Chronic Obstructive Disease Question naire ( CRDQ ) , mental health by Hospital Anxiety and Depression scale ( HAD ) and HRQoL by the Medical Outcomes Survey Short Form 36 ( SF-36 ) . After training , W peak , peak oxygen uptake ( VO(2 ) peak ) and exhaled carbon dioxide ( VCO(2 ) peak ) increased significantly in both groups , no significant differences between the groups . Minute ventilation ( V(E ) peak ) increased only in the C-group . At identical work rates ( isotime ) VO(2 ) , VCO(2 ) and V(E ) were significantly more decreased in the I-group than in the C-group ( p<0.05 ) . Functional capacity , dyspnoea , mental health , and HRQoL improved significantly in both groups , no difference between the groups . Interval training and continuous training were equally potent in improving peak exercise capacity , functional exercise capacity , dyspnoea , mental health and HRQoL in patients with moderate or severe COPD . At isotime , the physiological response to training differed between the groups , in favour of the interval training
The effects of HIIT appear to be comparable to those of continuous exercise in relation to functional and cardiovascular responses .
OBJECTIVE To evaluate the effects of high-intensity interval training ( HIIT ) , in comparison with those of continuous exercise , on functional capacity and cardiovascular variables in patients with COPD , through a systematic review and meta- analysis of r and omized controlled trials .