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How Does Exercise Affect The Level Of Blood Sugar?

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Blood Sugar Balancing Act: How Exercise Tips The Scales

Difficulty Time Required Long (2-4 weeks) Prerequisites Informed consent must be obtained from participants in this experiment (parental consent must be granted for minors). The experimental design (including consent forms) must be approved by your fair's Scientific Review Committee (SRC). Material Availability A blood glucose monitoring system is required to do this science project. See the Materials list for details. Cost Average ($40 - $80) Safety Follow all safety precautions when using the blood glucose monitoring kit and when handling blood, as described in the Procedure. If somebody who has diabetes wants to participate in this science project, review the safety notes at the beginning of the Procedure before starting. Abstract You are probably very familiar with the fact that over time, exercise changes your muscles, your lungs, your bones, and even your mindset; but did you know it has an immediate effect on your body's biochemistry? You can see this in the amount of glucose (a type of sugar your body uses for fuel) circulating in your blood. Blood glucose levels change as you exercise. For most people, this is not a big deal. But for top-level athletes in the middle of int Continue reading >>

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Popular Questions

  1. Jenna Dodge

    Does anybody know what kind of an effect exercise has on your fasting blood glucose levels? Specifically, I mean, what if you were to do a crossfit workout and then 20 minutes later get your blood drawn for a lipid analysis and fasting glucose level test. Would your blood glucose be higher (I'm thinking that your body is metabolizing lipids AND glucose to fuel the workout and there could be some extra glucose still floating around in the blood stream.)
    Also, what happens if you fast for say, 9 hours, instead of 12? Are the levels likely to be that much higher, do you think?

  2. Jay Cohen

    Quote:

    Originally Posted by Jenna Rettenmayer
    Does anybody know what kind of an effect exercise has on your fasting blood glucose levels? Specifically, I mean, what if you were to do a crossfit workout and then 20 minutes later get your blood drawn for a lipid analysis and fasting glucose level test. Would your blood glucose be higher (I'm thinking that your body is metabolizing lipids AND glucose to fuel the workout and there could be some extra glucose still floating around in the blood stream.)
    Also, what happens if you fast for say, 9 hours, instead of 12? Are the levels likely to be that much higher, do you think?
    Jena;
    Consider cross posting this question on the PM boards

  3. Tim Luby

    Many factors involved. Diabetic? If so, type 1 or type 2. On insulin?
    In nondiabetics glucose levels can remain fairly constant. Type 1s (or type 2s taking insulin) may have an increased risk of exercise-induced hypoglycemia.
    Basically, during exercise (up to around the first 25-30 minutes), the body decreases insulin secretion and increases glycogen breakdown into glucose to meet the increased energy demands.
    The problem with insulin-dependent diabetics is that since they are injecting insulin, the body has no way of downregulating insulin secretion. This means less glycogen is broken down into glucose. The result? Low blood sugar or possibly hypoglycemia.

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