RUNNING BACK DRILLS

Question
Next fall i am going to highschool and i wanna play runnerback. I played for my middle school team and i played r guard. 40 yard dash, i got 6.12 seconds.I am 5'4 and 146 pounds. I wanna know what i have to do to become conditioned for a high school runnerback. I have a gym membership and a HUGE backyard.Thanx

Answer
Dear Devere,
Here are a few drills that will help.

http://www.youtube.com/watch?v=UG1hGEBRvrk

http://www.youtube.com/watch?v=0jt2bJSqG5o

http://www.youtube.com/watch?v=nLrLM3xlc5w

http://www.youtube.com/watch?v=1ZcZbHA7OHs

http://www.youtube.com/watch?v=D6YOVmtqDQw

Your friend,
Louis