INFLUENCE OF ATHLETIC COMPETITION STRESS ON GLYCEMIC RESPONSE IN RECREATIONAL ATHLETES WITH TYPE 1 DIABETES

Session Type
ORAL PRESENTATION SESSION
Date
22.02.2020, Saturday
Session Time
08:30 - 10:00
Channel
London
Lecture Time
09:20 - 09:30
Presenter
  • Nicole Hobbs, United States of America
Authors
  • Nicole Hobbs, United States of America
  • Mert Sevil, United States of America
  • Lauretta Quinn, United States of America
  • Ali Cinar, United States of America

Abstract

Background and Aims

People with type 1 diabetes (T1D) have personal strategies for maintaining euglycemia while exercising which will serve them well during training. Their strategy often yields wildly differing results during a competition. The influence of competition stress (notably, epinephrine causing prompt elevations in glucose) and high-intensity and/or long-duration efforts can yield dysglycemia.

Methods

Recreational athletes with T1D were recruited for the study. A total of 5 runners (2M/3F) with 9 races have been studied to date. Participants completed an exercise stress test, an athletic competition, and a training run at the same pace as the athletic competition for a shorter duration and without the stress of the race. The carbohydrate and insulin intake prior to the athletic competition and the non-competitive race-intensity run were matched.

Results

The observed competition glucose trends are similar or elevated compared to the non-competition glucose trends of the same intensity at all distances studied. Within competitions for the same individual, in some cases the elevation observed during competition is not consistent despite reports of a similar level of stress in both competitions. When comparing these two cases, elevated heart rate in the race compared with the training session was correlated with elevated glucose in some individuals. Fewer hypoglycemic events were observed during athletic competitions than in non-competitive exercise sessions.

Conclusions

Competition stress may lead to an elevated glucose trend. Perceived stress level as reported by the individual is insufficient for determination of glycemia whereas an elevated heart rate may indicate an increase in glycemia at same running pace.

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