Right iv been running on the treadmill 3 times a week, monday wednesday and friday and then on the saturday running outside to test my progress by timing my 1.5 mile run as i have got selection coming up soon, what id like to know is will treadmill training have any effect on on my final run time ?? As in say my run time is 12 mins could i get it down after 6 weeks treadmill training to say 11 mins ?? Thanks.