Issues in building stamina

Hey man, I'm definitely not a doctor, but shouldn't your weight be a little higher? How tall are you exactly? The ideal weight for your height isn't always perfect for everyone, but your eating habits may cause problems. For example, I had a few days of watery stool after working out, but when I made sure to eat more over the next couple of days, I stopped having this problem. Once again, not a doctor, but that at least was my experience before.

 

The key to get more stamina is to get out there most days and run. I am an avid runner and stamina is built with more running volume and less on intensity. As you get stronger, you will get faster.

 

I can't run outside anymore bc of the pounding my knees take...I could run on a track just not street. So for now I'm running on a treadmill and I try to do interval running. Try and run one lap at 7.0 miles per hour then the next at like 9 mph and so forth. You can build up lung capacity this way. And try and run 2 or 3 miles per day.

 

have you gone through exam ?

 

for 144 ?

 

How is your nutrition?

 

If it helps:

First, run on grass/soil, not on pavement. There’s some cushion if you run on gravel/soil and your knees will enjoy it better. Go to a park even if it’s 5-10 mins walk.

Second, shoes. I assume you got the right shoes, but anyways here goes: If you run in AirMax you’ll probably not treat your legs too well, and your knees and feet will hate you dearly. Lunarlite or any shoe made specifically for running should be fine.

Third, heart rate / stamina. 1 mile in 8 mins is quite fast indeed, that’s 13km/h or 8.5 mph. Here’s the thing: What you want is to run as fast as possible with as low heart rate as possible. Fix the heart rate to 160bpm and run the mile. Tomorrow, same max heart rate, run the mile. It’s likely to see an improvement in your running time.

If you shoot straight up to 200bpm to get 1 mile in 8mins, your body will try to conserve energy by shutting down bodily functions, resulting in runners diarrhea.

Hope it will help!