Fig. 2

Individual values of peak oxygen uptake (l/min) pre- and post-12 weeks of aerobic interval training for the training groups with high adherence (A), low adherence (B) and controls (C). High adherence was set as completion of ≥ 70% of training sessions per protocol (n = 7) and low adherence as ≤ 70% of training sessions per protocol (n = 9). Values reported are mean and standard error. Used with permission from Brobakken et al. [13].