Do you think my heart could keep up or that's a stupid thing to do?

[Love_is_in_the_air]

I run with a normal speed for 4 min then I switch to sprint for 30 sec and I do that for 10 kilometres. What I want to achieve is to do one min normal run and one min sprint for 10 kilometres. I am planing to increase my sprinting time by 10 sec while I reduce the normal speed time by one min, every month, until I reach one min sprint and one min normal. Do you think that's possible?

[aMuse]

There's marathon runners doing 26.2 miles (42.16 km) at an average of 6 min miles. =) So sure, it's possible with the right conditioning. If you put in the work it will come with time.

[Anonymous]

Check the record books to see if its possible. Improvement is never bad though.

[swiftsaver602]

I'd say it's possible. It'll just take a lot of time to condition yourself.