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The Effects of Different Exercise Intensities on Glucoregulatory Response

Pietras, Angela
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1418222823

Abstract Details

2014, Master of Science, University of Toledo, Exercise Science.
An improvement in insulin action and glycemic regulation has been associated with traditional endurance training, but many individuals state a lack of time as a barrier to exercise. High intensity interval training (HIIT) is an approach to attempt physiological adjustments that are similar to those of endurance training. There is evidence that HIIT improves glucose regulation. It is still not known how glucose responses change before, during, and after HIIT compared to moderate intensity endurance training. PURPOSE: The purpose of this study is to demonstrate blood glucose responses before, during, and after an exercise session in healthy individuals and to identify any potential differences in blood glucose responses between a moderate intensity endurance training exercise session and a high intensity interval training exercise session. METHODS: Five healthy adults (age=23.6 ±1.8 years, height = 169.7 ± 10.5 cm, mass = 73.3 ± 19.2 kg) participated in a moderate intensity endurance training exercise session and a high intensity interval training (HIIT) exercise session. The subjects wore a continuous glucose monitor (CGM) during the duration of the study. One session of moderate intensity consisting of 50% of the participants peak watts for 30 minutes and one session of HIIT (85% of the participants peak watts) consisting of a three minute warm up at 50% of the participants peak watts followed by high-intensity intervals following a pattern of one minute cycling at the high intensity followed by one minute rest in which the subject will cycle at 30 Watts ten times. Each high intensity interval was set to a work rate ranging from 50% to 120% of their submaximal work rate. During each of the session the participant’s instantaneous interstitial glucose was recorded. The data was collected before, during, and after completing both exercise trails. RESULTS: To determine the potential differences in glucose response between the HIIT exercise session and the moderate intensity endurance training exercise session relative change ratios for blood glucose pre, during, and post training were recorded using the glucose values during training compared to baseline. When expressed as a ratio, there was no difference in the mean values among the different types of exercise (P=0.862). There was no difference in the blood glucose ratios between type of exercise within end of exercise (moderate: 3.7 ± 0.5 mmol/l, HIIT: 4.0 ± 0.6 mmol/l). There is not a statistically significant interaction between the type of exercise and time (P= 0.966). There were noticeable differences when comparing blood glucose levels pre training to post training in both the moderate intensity endurance training exercise session and the high intensity interval training exercise session. CONCLUSION: It was concluded that blood glucose responses before, during, and after a HIIT exercise session were similar to that of a moderate intensity endurance training exercise session.
Suzanne Wambold (Committee Chair)
Barry Scheuermann (Committee Member)
Janet Simon (Committee Member)
Kinesiology
glucose; HIIT; Continuous glucose monitors

Recommended Citations

Citations

  • Pietras, A. (2014). The Effects of Different Exercise Intensities on Glucoregulatory Response [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1418222823

    APA Style (7th edition)

  • Pietras, Angela. The Effects of Different Exercise Intensities on Glucoregulatory Response. 2014. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1418222823.

    MLA Style (8th edition)

  • Pietras, Angela. "The Effects of Different Exercise Intensities on Glucoregulatory Response." Master's thesis, University of Toledo, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1418222823

    Chicago Manual of Style (17th edition)

toledo1418222823
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This open access ETD is published by University of Toledo and OhioLINK.