pauly7582

We all eventually will have to make a choice between career and training. If I were you I'd just aim to maintain mass and keep kcals high and when your PT comittments are less get stuck into some mass building.

you on cycle at present? If so, personally speaking I can get away with quite a lot of cardio whilst still adding size. As Hacks said before diet is key. Mind, we're all different.

pauly7582

Unless your striving to maintain quite a lot of muscle mass then running would burn more total kcals of which more total kcals would come from fat, though I would consider that running is high impact and mixing with other modes of exercise would be beneficial too. Also, BMR would stay elevated for longer after the higher intensity exercise.

Lower intensities would use a greater % of fat kcals over glycogen though burn fewer total fat kcals. Imo walking only has benefits only for i) the lesser trained individual ii) the dieting BBer low on carbs and maybe also using thyroid meds and GH which shift the fuel focus more heavily towards fat.

The main disadvantage for our man here is that he will use a little protein as fuel during the two runs (cortisol is released triggering gluconeogenisis). This is likely to come from muscle tissue.