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 .
Effects of high-intensity exercise training in a pulmonary rehabilitation programme for patients with chronic obstructive pulmonary disease.
BACKGROUND AND OBJECTIVES The benefits of pulmonary rehabilitation for patients with COPD depend on the intensity of training . Traditional pulmonary rehabilitation programmes ( PRPs ) do not consistently achieve high-intensity training and have variable training effects . This study examined the effects of high-intensity exercise training on cardiac and pulmonary function in COPD patients . METHODS Patients with COPD participated in a 6-week , cardiopulmonary exercise test-based PRP . Spirometry , 6-min walking distance and cardiopulmonary exercise test were used to evaluate cardiopulmonary function , respiratory muscle strength and endurance at rest , during exercise and before and after the programme . Patients were encouraged to complete high-intensity exercise with a targeted training intensity of at least 75 % maximum oxygen uptake ( VO(2 ) ) . RESULTS Thirty-four COPD patients were enrolled into the study ; 16 completed the high-intensity training , 18 did not . At the end of the 12-session PRP , submaximal exercise capacity ( 6-min walking distance , 461.8 + /- 77.2 - 502.7 + /- 66.9 m , P < 0.001 ) improved in both the patients who completed high-intensity training and those who did not . Only the patients who completed high-intensity training had significant improvements in FVC ( 2.47 + /- 0.70 - 2.70 + /- 0.62 L , P = 0.024 ) at rest , maximal exercise capacity ( peak VO(2 ) , 1001.6 + /- 286.4 - 1116.1 + /- 320.4 mL/min , P = 0.020 ) and work efficiency ( 7.3 + /- 1.4 - 8.4 + /- 1.8 mL/min/watt , P = 0.026 ) . There was no statistically significant difference between the two groups in the change in the physiological parameters before and after exercise . CONCLUSIONS Exercise training in a PRP improved submaximal exercise capacity . Only patients who completed high-intensity exercise training showed improvements in maximal exercise capacity , FVC and work efficiency
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 .