Maintaining glycemic control during exercise

A computer-implemented method for modifying insulin basal rate delivery to adapt to a user's exercise activity, comprising:

• receiving a first value corresponding to a first glucose concentration before an exercise activity of a user;
• receiving a second value corresponding to a second glucose concentration after the exercise activity of the user;
• determining a glucose concentration change based on a difference between the second value and the first value;
• modifying a basal rate based on a comparison of the glucose concentration change with a predetermined threshold value;
• advising the user to consume carbohydrates if the modified basal rate is insufficient to compensate for the exercise activity;
• determining a recommended amount of carbohydrates wherein the recommended amount of carbohydrates is determined by calculating:
• Carb=(RIactivity*CIR)−(tactivity*Basal′*CIR)
• wherein:
• Carb represents the recommended amount of carbohydrates,
• RIactivity represents the user's residual insulin at the exercise activity's initiation,
• CIR represents the user's carbohydrate to insulin ration,
• tactivity represents an exercise parameter associated with the exercise activity, and
• Basal′ represents the user's exercise basal rate;
• delivering insulin to the body of the user according to the modified basal rate;
• and
• wherein at least one of receiving the first value, receiving the second value, determining, advising, and modifying is performed by one or more computer processors.

A computer-implemented method for modifying insulin basal rate delivery to adapt to a user's exercise activity, comprising:

• receiving a first value corresponding to a first glucose concentration before an exercise activity of a user;
• receiving a second value corresponding to a second glucose concentration after the exercise activity of the user;
• determining a glucose concentration change based on a difference between the second value and the first value;
• modifying a basal rate based on a comparison of the glucose concentration change with a predetermined threshold value;
• advising the user to consume carbohydrates if the modified basal rate is insufficient to compensate for the exercise activity;
• determining a recommended amount of carbohydrates wherein the modified basal rate is set to a minimum, and the recommended amount of carbohydrates is determined by calculating:
• Carb=(RIactivity*CIR)−(tactivity*Basal′*CIR)+(tactivity*Basalmin*CIR)
• wherein:
• Carb represents the recommended amount of carbohydrates,
• RIactivity represents the user's residual insulin at the exercise activity's initiation,
• CIR represents the user's carbohydrate to insulin ration,
• tactivity represents an exercise parameter associated with the exercise activity,
• Basal′ represents the user's exercise basal rate, and
• Basalmin represents the minimum basal rate;
• delivering insulin to the body of the user according to the modified basal rate;
• and
• wherein at least one of receiving the first value, receiving the second value, determining, advising, and modifying is performed by one or more computer processors.