Effects of Exercise Duration and Intensity on Maximal Exercise Capacity Over 6 Months in Coronary Heart Disease and Type 2 Diabetes—A Secondary Analysis of the LeIKD Trial

Figures

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  FIGURE 1. Change in peak oxygen consumption compared between patients classified as adherent to the exercise intervention and non‐adherent patients. The R function ‘jitter’ has been used to reduce overplotting. Adherence was defined as having performed ≥ 66.7% of the overall recommended training duration and reaching the prescribed training duration in ≥ 50% of the weeks, based on the training recordings of the LeIKD smartphone application without considering additional documentation.

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  FIGURE 2. Association of minutes of recorded endurance exercise with change in peak oxygen consumption between baseline and the 6‐month re‐examination. The red line represents the linear regression model showing the association between average exercise duration per week (in minutes) and the change in V̇O2peak (mL/kg/min) between baseline and the 6‐month re‐examination. The shaded gray area indicates the 95% confidence interval of the regression slope. The dark blue points depict individual participants' data, with variations in color intensity due to overlapping points (transparency has been applied to reduce overplotting). Participants with 0 min of recorded exercise: N = 46.

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  FIGURE 3. Association between the ratio of recorded versus prescribed training duration within the first two training weeks and between the third training week 3 and the 6‐month examination. The red‐dashed lines indicate the pre‐defined adherence cutoff of the main study (66.7%). Fulfillment of the second adherence criteria between week 3 and the 6‐month evaluation (reaching the prescribed training duration in ≥ 50% of the intervention weeks) is depicted via green circles (yes) or red crosses (no). The blue line shows the line of equality between the x‐ and the y‐axis. The R function ‘jitter’ has been used to reduce overplotting. Furthermore, outliers > 400% were plotted as 401% (n = 31).