I ride different types of session: steady ones, music rides with more pace, cooldowns. The obvious question: do they affect blood sugar differently?
What the data show
From my own sensor export.
How I calculated this
For each session I took the reading immediately before and the lowest reading in the ninety minutes afterwards. The difference is the decline.
This is a rough calculation. It does not account for what was eaten beforehand, how high the starting value was, or what came after.
The result
Steady sessions and music rides barely differ: nine against ten mg/dl on average. That is less than I expected — and the spread within each group is larger than the difference between them.
What stood out was the starting value: before the music rides it sat about ten points lower. That is probably because I ride those in the morning and the steady ones more often after a meal.
Eight and eleven sessions are too few for a comparison. With numbers that small a single outlier decides the average. For a reliable answer I would have to create the same starting conditions — same time of day, same meal beforehand — over many weeks.
What I take from it anyway
Both forms lower the reading. Which one I ride seems to matter less than whether I ride at all.
That matches what I see with the walk after meals: the biggest difference lies between movement and no movement, not between two kinds of movement.
Key points
- Eleven steady sessions, eight at higher pace.
- Average decline: nine against ten mg/dl.
- The spread within groups exceeded the difference between them.
- With so few sessions a single outlier decides the average.
- Whether I ride seems to matter more than what I ride.
Single observation, not a study.
The values in this article come from my own sensor (FreeStyle Libre 3) and are a single-case observation (n = 1) – they show a pattern in me, not a rule for you. Every statement is labelled as established, plausible or open, and proximity in time never counts as proof of a cause. How I handle time windows, sensor lag, influencing factors and approval is collected on one page. Read the methodology
Sources
This entry is based on my own sensor readings. Where studies are mentioned, they are linked in the text. Continuous glucose monitoring: FreeStyle Libre 3.
Recheck of ride classification
A new review of clearly labelled sessions provisionally found 14 steadier and 9 music- or intensity-led rides. Starting values and time of day differed substantially. The conclusion is therefore deliberately cautious: this dataset does not support a reliable ranking of ride types. Future comparisons need fixed selection rules, a common time window and exclusion of overlapping meals.