In reply to willdcc:
Road running (ie to the gym and back) is going to impact on your joints. plus with the dark nights your chances of becoming "road-kill" will increase !!!
You could buy a cheap pair of football boots and do training drills on a local field. During my footballing days as a yoof I used to train by doing the following:
Warm up
Lap 1: around the pitch at gentle jogging pace
Lap 2: 1/2 pace along the length of the pitch and then 3/4 pace along the dead ball (goal) line.
30 second rest
Lap 3: repeat lap 2.
Cardio:
goal line to 6 yard line and back at sprint
goal line to 18 yard line and back 1/2 pace
goal line to halfway at 3/4 pace back at 1/2 pace
full length of the pitch and back at jogging pace
1 minute rest then repeat as many times as you feel comfortable.
finish with a nice warm bath !!!!!