I did a slightly modified version of the BBT. Let's set the stage a bit:
Planned exercise: 50 mile bike ride
Duration: 4 - 6 hours
Weather conditions: Temps in the mid 80s (F), 50% humidity, mostly sunny
I started by lowering my pump's basal rate to 10% (.04 U/hr), ate breakfast with a significantly lowered I:C ratio (1:32). I ate 30 minutes before the ride.
Testing was via my Aviva meter.
Initial test @ start of ride = 229 mg/dl (12.7 mmol)
2nd test (50 minutes later) = 151/8.4 (I dropped by basal to 0%)
3rd test (60 minutes later) = 58/3.2 (4 glucose tabs, 5 grapes)
4th test (50 minutes later) = 93/5.2 (2 glucose tabs)
5th test (50 minutes later) = 112/6.2 (LUNCH BREAK! Bolus 2U, basal @ 50% for 30 minutes, then back to 0%)
6th test (90 minutes later) = 81/4.5 (3 glucose tabs)
7th test (30 minutes later) = 107/5.9 (LAST TEST! reset basal to 100%)
Overall, pretty successful. I am trying to work on reducing the need for glucose tabs by experimenting with adding more protein into the meals before and during the ride.
Appreciate any comments