[IP] Temperature Restricts Pump
Every Sunday morning I ride my bicycle with the Arizona Bicycle Club,
which I have belonged to for 25 years. The rides are anywhere between
20 and 35 miles. We start at 6:30 in the summer and 7:30 in the winter.
We always ride to a restaurant and have breakfast before returning to
the starting point. It usually takes about 3.5 hours.
The max temperature forecast for today is 113 degrees F (45 C), which
is more than a little bit above the upper limit of 86 F for Humalog. I
didn't expect to be riding when the temperature hit the max, but I did
note that on Saturday the temperature reached 100 F at 10:00 am before
reaching the max of 112F later in the day. Relative humidity on
Saturday ranged from 24% at the low temperatures to 4% at the max
temperature. So I decided that I should finish my ride about 8:00.
I wear my MM508 clipped to the waistline of my bicycle shorts, and I
have found that I need a temp basal of 0.2 unit/hr (which is 0.1 unit
delivered every 0.5 hour) for the duration of the ride (compared to 0.7
unit/hr on non-ride days), so leaving the pump at home wasn't really an
option. I doubt whether a Frio pump wallet would be practical to clip
to the waistline of the shorts.
I left home on my bicycle at 5:45 so I would arrive at the starting
point for the club ride at 6:00. Between 6 and 6:30 I helped with
getting all the riders (50-60) to sign the insurance waiver, which we
have to do every week. We split into five groups, all heading for the
same restaurant (but different every week). I decided I would ride with
my usual group until we reached the freeway underpass, which is about
half way to this week's restaurant. There I headed back to the starting
point via a different route, and then home, getting there about 8:00.
This just shows that it's necessary to make special arrangements in
dealing with temperature extremes. Most of you don't run into extremes
like we have in Arizona.
dx 12/1942, 506 1995, 508 2000
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