Tired Legs

Returned to Butts Park yesterday for my long run.  Ran about 12 miles in 2:30 hrs., which is a 12:30 pace.  Temp. was in the 60s and 70s during the run. Average HR was 133 and Max HR was 144.  My legs were really tired.  My right quad and hip flexor seemed to be giving me some problems.  They were sore and seemed to be a bit strained.  I did my lunge and leg swing series before running.  I think that the lunges and the 5 strides I did Friday may have contributed to the soreness and fatigue.  I'm thinking that I'm pushing too hard on the strides.  I'd give this run a 3.5 because I really enjoyed being back at Butts Park again.  The trails are tougher to run than the Ridgeland MB trails because Butts Park has many more roots.