Fig. 2

Exercise parameters over the course of cardiac rehabilitation. HIIT high-intensity interval training, MICT moderate-intensity continuous training. a Average heart rate during training. HIIT vs. MICT, 2-weeks: 110 vs. 96 bpm, P = .04; 4-weeks: 113 vs. 96 bpm, P = .008; 8-weeks: 116 vs. 98 bpm, P = .009; 12-weeks: 116 vs. 102 bpm, P = .003, respectively. There was no evidence of a difference across groups over time (P = .81). b Average intensity. 2-weeks: 3.2 vs. 2.6 METs, P = .01; 4-weeks: 3.3 vs. 2.5 METs, P = .01; 8-weeks: 3.5 vs. 2.9 METs, P = .02; 12-weeks: 3.8 vs. 3.2 METs, P = .03, respectively. Evidence of a difference across groups over time was noted (P = .40). c Duration of exercise. 2-weeks: 31 vs. 25 min, P = .03; 4-weeks: 33 vs. 27 min, P = .008; 8-weeks: 35 vs. 27 min, P = .007; 12-weeks: 34 vs. 30 min, P = .39, respectively. There was no evidence of a difference across groups over time (P = .68). d Energy expenditure per session. 2-weeks: 143 vs. 98 kcal, P = .09; 4-weeks: 152 vs. 100 kcal, P = .01; 8-weeks: 161 vs. 124 kcal, P = .05; 12-weeks: 163 vs. 143 kcal, P = .41, respectively. There was no evidence of a difference across groups over time (P = .37). Results presented are mean and 95% confidence limits based on repeated measures ANOVA. Comparisons at each time point are adjusted for multiple comparisons using the method of Scheffe