How's your salt intake? Try drinking a bouillon cube about an hour before you got out walking.

I'm having a deja vu moment here:
http://community.myfitnesspal.com/en/discussion/10556308/fasting-issue#latest

Are you still trying to walk while fasted?

I too suggest sodium if you are feeling like you are running out of steam. Are you still getting a hit of sodium, pre walk?

I'm reminded of your medical diagnosis. Have you spoken with your doc regarding "hardly able to move" after a certain point? Did you get any recommendations or suggestions other than rest?

In regards to the current thread: I walk off and on. Usually 3-4 miles at a time. Occassionally I will go 4-6 miles. On the occasion I feel as if I am running out of steam, a salty boullion cube helps immensely. I carry them in my backpack. I've never "carbed up" for energy prior to or during a walk.

Technically the body has NO minimum requirement for carbs, as glucose can be provided for the brain through gluconeogenesis - it is not like essential amino acids (protein) or essential fatty acids (fats). Diabetic ketoacisosis ('diabetic coma') is not the same as ketosis.
BUT I do agree that it would be good to consult with another health provider (perhaps a sports physio if you think your psoas is a problem).
Good luck Bob!
Keep us updated.

Kerrist, you're going on vacation, not a marathon! Take it easy, enjoy the scenery and quit thinking about speed vs intake, nutrition vs ability.... Hang loose have fun and relax!

(Is my take....)

OOOPS! I obviously need more sleep and less multitasking. Apologies to all readers/posters! Thanks Ralflott for correcting the booboo.

Maybe try stopping and stretching every 20 min? Particularly if you think it may be a muscle issue. Or try strengthening that muscle with other exercises to see if that helps build your walking endurance.

Exercise will only require carbs if you are not adapted to using fat for fuel. The body must build new mitochondria for the muscles to use to burn ketones instead of carbs/glucose. If you have an impairment in this process (including not enough time, health issues, etc.), it could be why your body seems to hit a wall and require recuperation time.

MurpleCat wrote: »

Its probably good to get screened for diabetes, just to be safe.

Hypoglycemia is low blood sugar, and will make you feel shaky, dizzy, tunnel-vision.
DKA is related to high blood sugar, and can be accompanied by muscle weakness, fatigue, and rapid weight loss over time. When acute, it will present as thirst, vomiting, etc. That is, in fact, how I found out I was T1D, after an initial T2 diagnosis. It got to the point where I couldn't dry my hair in the morning because my arms were too tired to hold the hairdryer up.

Its worth checking out before it becomes acute -- I had an acute DKA in September, went to the ER, and that's when they figured out, oh wait, she's just not making enough insulin. That's T1D. A few weeks on insulin and I was feeling much better. Stamina returned eventually & I'm playing tennis 3x a week now YMMV, especially if you've never played tennis before.

How old were you when you were diagnosed as T1D?

KnitOrMiss wrote: »

@RalfLott - Not the person in question, but a coworker I just met for the first time about 2 weeks ago, she was diagnosed as LADA T1D in her 50's.

Wow.... I hope her docs were on the ball enough to get her diagnosed quickly.

Bob314159 wrote: »

MurpleCat wrote: »

Its probably good to get screened for diabetes, just to be safe. - Last blood tests were totally normal

Hypoglycemia is low blood sugar, and will make you feel shaky, dizzy, tunnel-vision.
DKA is related to high blood sugar, and can be accompanied by muscle weakness, fatigue, and rapid weight loss over time. When acute, it will present as thirst, vomiting, etc. That is, in fact, how I found out I was T1D, after an initial T2 diagnosis. It got to the point where I couldn't dry my hair in the morning because my arms were too tired to hold the hairdryer up.

No dizziness, shaking, tunnel-vision, muscle pain - just not able to walk fast after 30 minutes - feels more like I would expect after 2 hours of walking

Hey man, keep up the walking and working towards your goals. Let me be super HONEST here and sorry if it gets you a little mad at me. Dont look for ways to sabotage your progress. Now that said I am assuming you are on the LCHF community because you want to be low carb. Otherwise you would be somewhere else. So that said you are probably seeing other posts of the LCHF successes or you are experiencing them for yourself. For me I lost a ton of weight, sleep better, more energy than I have had in 20 years, no more acid reflux etc... I want the same for you!!! So do not look for reasons to bring more carbs in, look for all the reasons to minimize/eliminate them. I run for an hour on the treadmill burn 1,000 calories, but choose a salad with olive oil to eat for me. Man do I see pizza, bread, sometimes and say that looks soo good. But then I realize it was those items that got me into trouble to start with and I am in weight loss mode, 10-15 more pounds to go! I wont let those things sabotage my goals!

Good luck to you!

RalfLott wrote: »

KnitOrMiss wrote: »

@RalfLott - Not the person in question, but a coworker I just met for the first time about 2 weeks ago, she was diagnosed as LADA T1D in her 50's.

Wow.... I hope her docs were on the ball enough to get her diagnosed quickly.

Unfortunately, she had to pass out in Walmart in the middle of trying to shove food down her gullet because she'd have huge drops over nothing...as her pancreas was stuttering to a slow and painful death. She'd been testing her blood sugars and would have HUGE swings.... 300 to 45, etc. She was just telling me about it early last week.