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Home-based versus hospital-based high-intensity interval training in cardiac rehabilitation : a randomized study . BACKGROUND High-intensity interval training ( HIT ) as exercise therapy is gradually implemented in cardiac rehabilitation as the cardiovascular benefits from exercise is intensity dependent . However , in previous studies , HIT has been performed with strict supervision . The aim of the study was to assess the feasibility and effectiveness of different modes of HIT in cardiac rehabilitation . DESIGN a randomized clinical study . METHODS Ninety participants with coronary artery disease ( 80 men/10 women , mean age 57 ± 8 years ) were randomly assigned to one of three exercise modes : group exercise ( GE ) , treadmill exercise ( TE ) , or home-based exercise ( HE ) . HIT was performed twice a week for 12 weeks with an exercise intensity of 85-95 % of peak heart rate . The primary outcome measure was change in peak oxygen uptake ( peak VO2 ) . RESULTS Eighty-three participants ( 92 % ) completed the intervention without any severe adverse events . Peak VO2 increased from 34.7 ± 7.3 to 39.0 ± 8.0 ml/kg/min , 32.7 ± 6.5 to 36.0 ± 6.2 ml/kg/min , and 34.4 ± 4.8 to 37.2 ± 5.2 ml/kg/min in TE , GE , and HE , respectively . Mean group difference for TE vs . HE was 1.6 ml/kg/min ( 95 % confidence interval , CI , 0.7 to 3.1 , p = 0.02 ) , TE vs. GE 1.1 ml/kg/min ( 95 % CI-0.5 to 2.5 , p = 0.27 ) , and GE vs . HE 0.6 ml/kg/min ( 95 % CI -1.0 to 2.1 , p = 1 ) . However , on-treatment analysis showed no significant difference between groups . CONCLUSION HIT was efficiently performed in three settings of cardiac rehabilitation , with respect to target exercise intensity , exercise attendance , and increase in peak VO2 . Exercise mode was not essential for exercise capacity .
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Intervention_Educational
Home-based versus hospital-based high-intensity interval training
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Intervention_Educational
cardiac rehabilitation :
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Intervention_Educational
High-intensity interval training ( HIT )
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Participant_Condition
cardiac rehabilitation :
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Participant_Sample-size
Ninety
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Participant_Condition
coronary artery disease
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Participant_Sample-size
80
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Participant_Sex
men/10 women
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Participant_Age
age 57 ± 8 years
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Participant_Sample-size
Eighty-three