I never ran before. I'm a 5'11" man and have a healthy bmi.
I ran today and it was hard. I had to stop numerous times to catch my breath. My legs never got tired, it was just my lungs burning and a cramp in my side.
What happened? Does it get better? I managed to run 2kms under 10 minutes which I think is too fast and I need to slow down?
Yes, it gets better and the cramp is normal for people who don't run that often. Take it slow and easy and build up to it.
Holy shit no. Cramps are from fatigue almost 100% of the time. Rarely from dehydration if you hydrate properly. Tbh fam it's probably dehydration and fatigue.
Potassium and cramps is a debunked myth.
Same with me when I started a few years ago, basically yes, you just need to git gud so keep at it. This is how a lot of people feel starting out. Keep running, focus on controlling your breath, and make sure you are running with good form or you'll end up with shin splints like I did.
Also check out this guy's videos, helped me a lot when I first started out and was having cramps:
What the shit are you talking about?
Yea it gets better, your heart is a muscle, if you've never worked it before it's not going to perform very well the first time. Eventually your body fails before your heart. I ran a marathon a few weeks ago and ran the first 22 miles at 8:10 mile pace without breathing heavy until my knees gave out and I had to walk the rest. Its just like any other muscle, it adapts and calms the f down
I wouldn't say I'm that out of shape. Just been lost in life and haven't exercised as much as I should have. I row and spin bike sometimes - but yeah still generally out of shape.
I will do what you say. I have to do a bike/run race next summer. I have to. Or a triathlon. I have to learn how to swim. Lol. Or maybe I will stick to the duathalon
This is good for some and not for others. Everyone falls into discipline a little differently.
Back when I would try to follow strict plans I would very often feel unmotivated and skip days. Then I had a friend tell me "just go out and run a bit", and that worked for me. No plans at first, just run a little every day, no matter what. Even if it's just up and down the street. Some day you'll feel like running for a bit longer and so you should.
Once you build a little bit of stamina and fall into the habit of running at least little everyday, then maybe look into starting a tried and true progress plan like c25k.
Op says he Isn't fat or really out of shape. Couch 2 5k is for fat slobs that can't run for more than a minute. I think op should probably slow down at first, but the important thing is to keep at it.