Sore Legs

As the first month of this calendar year reaches its end, I'm still 100% compliant with my intended treadmill performance, adding three minutes to the duration and 0.1 mph to the speed.  Two days on, one day off.  Unfortunately my legs can attest to the extra effort.  Still two more sessions to go, same time, same speed.  When doing less, at the turn of a 31 day month, I would do three consecutive days on.  May not be a real good idea this month.  One day may not be enough to recover legs with exertion driven improvement in their function.  I think it better to modify this to two days off as we move to next month.