The weekend before last I ran the Big Sur Half Marathon at Monterey Bay. It was a beautiful day. The sun was shining down through the clear blue sky. There was a gorgeous sunrise as we waited for the race to start. I had awoken three hours before the race to eat and allow the insulin to wear off prior to the start of the run. At the start I was at an ideal 140 mg/dL, right where I wanted to be just before a race.
The race started off well. I kept my pace as we wound through downtown Monterey and out towards the Pacific. I was cruising along, feeling good, until at about mile five I felt my OmniPod coming off. It was on my right hip and when I reached down to check it, it had lost its attachment in front and was only being held on by the combination of the glue near the rear of the device and the pressure from my shirt. As anyone who has used an OmniPod knows, the cannula is located at the front, so the tubing had also come out. This meant that I was no longer getting any insulin and had no way to get any more insulin until the conclusion of the race.
When I run I wear an SPI Belt containing some gels in case I need sugar as well as my Dexcom CGM receiver so I can always see what my blood sugar is. In my normal day to day routine, I would have the OmniPod PDM with an extra OmniPod nearby, but for obvious reasons I didn't.
I still had eight miles to run, and knew it would take me a bit over an hour. My blood sugar at this point was 80 mg/dL and I knew the insulin that was already in my body would last approximately two more hours. With all of that in mind, I kept going and was able to finish the race. My finishing blood sugar was 101 mg/dL after eating a gel to bring me up from 80 mg/dL.
Needless to say I got a new OmniPod in as quickly as I could afterwards. However, with the delay at the finishers tent I still spiked up above 300 mg/dL before it was all said and done.
As a result, I'm going to experiment with different OmniPod positioning to see if another location would be less likely to fall off while running long distances. Another option would be to find something to apply consistent pressure on top of the OmniPod, such as a tight undershirt or an armband depending on where the site is. However, in the meantime, I'm going to revert back to using Lantus on race days and having a Humalog pen on me for any corrections as I did for the Calgary Ironman 70.3 earlier this year.