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 a high intensity training program on patients with chronic obstructive airways disease (COAD)].
UNLABELLED In a controlled/ prospect i ve clinical trial we examined 125 patients with moderate COAD , 84 of which performed a high-intensity training program on cycle ergometers . METHODS All participants ( controls n = 39 , training-group n = 84 , age 48.7 versus 48.1 years , FEV1 62.3 % vs. 63.1 % of predicted ) were examined spiroergometrically ( ramp protocol , increment 10 W/min ) , the anaerobic threshold ( AT ) determined and a training intensity calculated ( AT + 40 % of the difference to peak exercise ) . Training was carried out on cycle ergometers with 5 training units weekly at 40 minutes each . We aim ed at a minimum of 22 training units during 4 weeks . RESULTS Both groups improved in the lung function at rest ( FEV1 + 11 % versus + 12 % in the controls ) . Only for the training group we found a statistically significant improvement in maximum exercise capacity ( O2 uptake + 286.4 ml vs. + 72.4 ml , maximum workrate + 20.0 watts vs. + 5.7 W ) , of the anaerobic threshold ( AT improved by 8.4 watts vs. 5.1 W ) as well as in the metabolic load ( lactate decreased by 1.3 mmol vs. 0.2 mmol , ventilation decreased by 3.8 l/min vs. 2.3 l/min ) . In most subscales of the SF-36 question naire quality of living improved more clearly in the training group , whereas the LAQ question naire showed no group-specific differences and no improvement after training . CONCLUSION We conclude from the result that a high intensity training program can be recommended as a useful and low-risk component in pulmonary rehabilitation programs
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 .