hello!!! 
well basically i am trying to get into the army, and i thought that it would be best if i aimed high and went for the Parachute regiment, which involves me to do a 1.5 mile run in under 9 mins and 15 secs.
thing is, is that i aint done any work on my legs for a long time, nor my lungs, and whenever i go out for a run i dont last very long, i can run constantly for about 0.6 of a mile before i start to slow down, its mainly to do with my lungs, my legs dont get tired but i just get out of breath too quickly, im just wondering if there are any tips to being able to do this run in 9.15.
at the moment im just running untill i cant run anymore and then i walk, and then burst back into a run when i feel i can, but i need to be running contstantly to do it in time. should i maybe keep doing this once in the morning and once at night every day for a month? will that be addiquate enough to get into shape?
also is it worth getting a heart rate monitor? or is there an cheaper way?

well basically i am trying to get into the army, and i thought that it would be best if i aimed high and went for the Parachute regiment, which involves me to do a 1.5 mile run in under 9 mins and 15 secs.
thing is, is that i aint done any work on my legs for a long time, nor my lungs, and whenever i go out for a run i dont last very long, i can run constantly for about 0.6 of a mile before i start to slow down, its mainly to do with my lungs, my legs dont get tired but i just get out of breath too quickly, im just wondering if there are any tips to being able to do this run in 9.15.
at the moment im just running untill i cant run anymore and then i walk, and then burst back into a run when i feel i can, but i need to be running contstantly to do it in time. should i maybe keep doing this once in the morning and once at night every day for a month? will that be addiquate enough to get into shape?
also is it worth getting a heart rate monitor? or is there an cheaper way?