>Cross Training>Strength Train legs?
Dad on the run.
My legs may not be huge but this is my 5th 5K and only my second since I have been cross training and I can say when I was done I felt no leg fatigue or pain. All I do is body weight workouts.
one legged squats
romanian dead lifts (think that's the correct name)
My parents said I could be anything when I grew up, so I decided to be Awesome!