He also appears to have played quite a bit of tennis during his trips down to Livadia. I'm not certain if chopping and sawing wood was a hobby for him as Tsar (I rather think he didn't have the time to spare to engage in such an activity) but he certainly did a lot of it during captivity. Imprisonment did not afford him his long walks, and probably cut down on his aerobic endurance, but it seems likely he was as strong and muscular as ever in this months leading up to his death.