Good luck to everyone this weekend running the Boston Marathon. Check out the video for a brick workout without the biking. You can incorporate it on you long run. The key is to add a series of squats interspersed throughout your long run. I prefer Hindu Squats, but any type will work. Expect to feel the burn for sure!
Workout for a 2 Hour Run
Start 100-200 Squats
Every 15 minutes of the run do 100 Squats
When you finish do as many Squats as you can and then recovery drink.