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 .
An evaluation of two approaches to exercise conditioning in pulmonary rehabilitation.
STUDY OBJECTIVES To compare the effectiveness of two forms of exercise training in pulmonary rehabilitation . DESIGN A prospect i ve , r and omized , unblinded , 8-week trial . SETTING A hospital-based outpatient pulmonary rehabilitation program . PATIENTS Forty patients ( 20 patients in each group ) with COPD who were referred for pulmonary rehabilitation . INTERVENTIONS We compared the short-term effectiveness of a high-intensity , lower-extremity endurance program with a low-intensity , multicomponent calisthenics program for the rehabilitation of patients with COPD . The high-intensity group trained predominately on the stationary bicycle and treadmill , with a goal of exercising at > or = 80 % of maximal level determined from incremental testing for 30 min per session . The low-intensity group performed predominately classroom exercises for approximately 30 min per session . For both groups , twice-weekly sessions were held for 8 weeks . The primary outcome measure was health status , measured using the Chronic Respiratory Disease Question naire . Other outcomes included peak oxygen consumption on incremental treadmill exercise testing , exertional dyspnea , treadmill endurance time , the number of sit-to-st and repetitions and arm lifts in 1 min , overall dyspnea , and question naire-rated functional status . MEASUREMENTS AND RESULTS Both groups showed significant postrehabilitation improvement in exercise variables , exertional and overall dyspnea , functional performance , and health status . Patients in the high-intensity group showed greater increases in treadmill endurance and greater reductions in exertional dyspnea , whereas those in the low-intensity group showed greater increases in arm-endurance testing . Both groups had similar improvements in overall dyspnea , functional performance , and health status . CONCLUSIONS Despite differences in exercise performance , both high-intensity , lower-extremity endurance training and low-intensity calisthenics led to similar short-term improvements in question naire-rated dyspnea , functional performance , and health status
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 .