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<blockquote data-quote="velofan" data-source="post: 2675487" data-attributes="member: 508427"><p>I haven't read the entire thread yet, but as an active prediabetic cyclist (audax, touring rather than racing, hene the username!) and orienteer (racing), I have some empathy!</p><p>I spent 2 weeks in the autumn running a CGM, and during that time my highest levels (by some way) were when racing (orienteering). Not surprising really on reflection - it's the adrenaline. I'd be more worried if I didn't get such a reaction. I found that it tended to peak after 30 mins or so, and at the end of the race (around an hour or so) it would, if it hadn't already, come rapidly down to normal.</p><p>TBH, I would reckon you would want a high amount of glucose in the blood stream - how are your muscles going to get enough fuel it if isn't being transported to them? Having talked this over with a number of orienteering diabetics, high BG levels when racing are not uncommon (and the T1s I've talked to are more worried about going hypo than hyper).</p><p>I've not found gels or jelly babies (my go to when orienteering!) creating spikes during exercise - although it does seem that they help keep the level high once it is a that level.</p><p>I tried going keto, but simply couldn't make it work. It was fine for audax/touring, and could cycle 200k happily on next to no food other than some nuts, but as soon as the intensity rose (especially orienteering/running), I couldn't last more than 30-35 mins. I now follow a low carb (<100g) diet, and spot use carbs for racing days - which has transformed my performance, and has still enabled me to control my blood sugar levels. (BTW, do a fair work with sequencing food etc to keep curves under control when eating carby food - which is generally limited to pulses, some of the more carby veg - not potatoes! - and the occasional treat sourdough wholemeal bread - the one carb food I miss! I don't eat porridge etc any more sadly - it's a disaster area curve-wise even when using all the hacks to control it).</p></blockquote><p></p>
[QUOTE="velofan, post: 2675487, member: 508427"] I haven't read the entire thread yet, but as an active prediabetic cyclist (audax, touring rather than racing, hene the username!) and orienteer (racing), I have some empathy! I spent 2 weeks in the autumn running a CGM, and during that time my highest levels (by some way) were when racing (orienteering). Not surprising really on reflection - it's the adrenaline. I'd be more worried if I didn't get such a reaction. I found that it tended to peak after 30 mins or so, and at the end of the race (around an hour or so) it would, if it hadn't already, come rapidly down to normal. TBH, I would reckon you would want a high amount of glucose in the blood stream - how are your muscles going to get enough fuel it if isn't being transported to them? Having talked this over with a number of orienteering diabetics, high BG levels when racing are not uncommon (and the T1s I've talked to are more worried about going hypo than hyper). I've not found gels or jelly babies (my go to when orienteering!) creating spikes during exercise - although it does seem that they help keep the level high once it is a that level. I tried going keto, but simply couldn't make it work. It was fine for audax/touring, and could cycle 200k happily on next to no food other than some nuts, but as soon as the intensity rose (especially orienteering/running), I couldn't last more than 30-35 mins. I now follow a low carb (<100g) diet, and spot use carbs for racing days - which has transformed my performance, and has still enabled me to control my blood sugar levels. (BTW, do a fair work with sequencing food etc to keep curves under control when eating carby food - which is generally limited to pulses, some of the more carby veg - not potatoes! - and the occasional treat sourdough wholemeal bread - the one carb food I miss! I don't eat porridge etc any more sadly - it's a disaster area curve-wise even when using all the hacks to control it). [/QUOTE]
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