Sandberg 2018.

Study characteristics
Methods	Aim of study: effect of a home‐based exercise training programme on fitness and HRQoL Study design: RCT No. of centres: 1 Country: Sweden
Participants	N randomised total: 26; intervention: 16; comparator: 10 N analysed total: 23; intervention: 13; comparator: 10 Severity of condition: intervention:  severe = 13  comparator:  severe = 10  Age (median (IQR)) total: 30.1 (22.9 to 36.6); intervention: 31.3 (26.9 to 36.6); comparator: 26.3 (22.9 to 35.6) Percentage male total: 52; intervention: 62; comparator: 40 Inclusion criteria: complex ConHD e.g. Fontan, TGA ToF > 18yrs old Exclusion criteria: the exclusion criteria were present exercise training > times/week aimed at increasing or sustaining exercise capacity, arrhythmia or other adverse events (e.g. important symptoms, drop in blood pressure) at CPET, clinically relevant arrhythmia, intellectual disability or mental illness affecting independent decision making, extracardiac disease affecting physical activity, peak VO2 > 30ml/kg/min at run‐in CPET, or no internet access.
Interventions	Description: home‐based cycling intervention Setting: home Supervision: semi‐supervised Detail of exercise: Modality:  cycling Intensity: training heart rate (THR) was calculated according to the Karvonen method and to achieve BORG 15 to 16. Resistance training included? No 1 ‐ Length of session:  12 weeks 2 ‐ Frequency/no. of sessions a week: 3 3 ‐ Duration of session: 31 mins (avg interval of 3.5 min and including work and rest unloaded intervals) Dose of exercise: 1*2*3 = 1116 (individualised)
Outcomes	Cardiorespiratory fitness Health‐related quality of life
Notes	Compliance 79% (median 83%, 47% to 100%). Range of session completed 17 to 36. Comparator: usual care