My BJJ class with David Boehme, was scheduled for the morning today, so I couldn’t eat breakfast at my normal time. Since I didn’t want to throw up or start burping in Dave’s face during the class, I decided to just go without eating anything.
With my prior experience I knew that since I’m ketoadapted (my AM ketones today were 1.0 mmol), I wouldn’t bonk out from hypoglycemia, so I felt pretty comfortable going in a fasted state.
We had good training with some reviewing of techniques, position specific drilling, and some light rolling. It was a good hour of full body activity (which is one of the reasons I love BJJ), where I worked up a good sweat and got my heart rate up.
On a scale of 1-10 in terms of intensity, I would give it a 6. We both didn’t want to push it too hard because we’re both a little banged up.
Right when I got home, about 45 minutes after class, I decided to check my ketones again… I wanted to see what effect my exercise had on these measurements.
According to Volek and Phinney, exercise can increase your ketone levels 0.25 – 0.5 mmol immediately afterwards.
Anyone want to hazard a guess as to what mine were?
My fasting ketones after waking up were 1 mmol, and now after 1 hour of activity they went down to 0.6 mmol. Not sure how to explain this… maybe I didn’t check them “immediately” enough.. I’ll have to try to look into this.
(I also checked my blood sugar again, 82, which just confirms that my body is good at keeping my blood sugars stable and that I’m not ask risk for hypoglycemia at least while in the ketoadapted state)