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Pre-exercise Insulin and Carbohydrate Strategies in the Exercising T1DM Individual

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Type 1 Diabetes

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Abstract

This chapter will examine the evidence that currently exists for the use of pre-exercise strategies comprised of changes in exogenous insulin administration and carbohydrate ingestion to improve post-exercise glycemia. Physical exercise is a complex metabolic stressor, the magnitude of which is determined by its duration, intensity, mode, and frequency. Pre-exercise reductions in exogenous insulin and/or carbohydrate consumption improve glycemia and may improve performance especially when considering endurance exercise. However, the exact determinants of the strategy, namely, the degree of rapid-acting insulin reduction and the amount, type, and timing of carbohydrate, still remain to be determined. With an increase in the use of basal-bolus routines and knowledge of “carbohydrate counting,” more confidence can be gleaned from research examining manipulations of these insulins combined with ingestion of different carbohydrates in type 1 individuals. Additionally, detailed knowledge of the effects of exercise in the T1DM individual offers more potential to avoid post-exercise hypoglycemia.

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Authors and Affiliations

  1. Health and Sport Science, College of Engineering, Swansea University, Singleton Park, Swansea, SA2 8PP, UK

    Richard M. Bracken B.Sc., M.Sc., PGCert, Ph.D.

  2. Department of Sport and Exercise, Northumbria University, Northumberland Street, Newcastle upon Tyne, Tyne and Wear, NE1 8ST, UK

    Daniel J. West B.Sc., Ph.D.

  3. Institute of Life Sciences, College of Medicine, Swansea University, Singleton Park, Swansea, Wales, SA2 8PP, UK

    Stephen C. Bain M.A., M.D., FRCP

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  1. Richard M. Bracken B.Sc., M.Sc., PGCert, Ph.D.
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  3. Stephen C. Bain M.A., M.D., FRCP
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Correspondence to Richard M. Bracken B.Sc., M.Sc., PGCert, Ph.D. .

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Bracken, R.M., West, D.J., Bain, S.C. (2012). Pre-exercise Insulin and Carbohydrate Strategies in the Exercising T1DM Individual. In: Type 1 Diabetes. Springer, London. https://doi.org/10.1007/978-0-85729-754-9_3

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  • DOI: https://doi.org/10.1007/978-0-85729-754-9_3

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