Baseline characteristics for the entire cohort and the subgroup completing the exercise protocol.

a WALK  =  Low intensity walking, AIT  =  Aerobic interval training, MVIT  =  Maximal volitional intensity training.
b ITT (intention to treat) includes all 49 randomized participants, PP (per protocol) includes the 32 participants who completed >70% of their exercise prescription (see text for more detail).
c A positive response indicates possible health problems, with the recommendation that a medical screen is undertaken prior to increased physical activity.