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2nd Edition: Diabetes in Sports and Exercise Medicine

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Guest Editor
Department of Health & Sport Sciences, University of Louisville, Louisville, KY 40292, USA
Interests: clinical exercise physiology; accelerometry; community-based interventions; metabolic syndrome
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Special Issue Information

Dear Colleagues,

Thank you for your great support of our last Special Issue on “Diabetes in Sports and Exercise Medicine” (https://www.mdpi.com/journal/ijerph/special_issues/Diabetes_Sport_Medicine). Considering its importance, the journal requested the organization of a second edition of this topic.

In this Special Issue, we aim to maintain the focus on exercise and physical activity in diabetes, and welcome papers covering a broad overview of exercise-related topics. These range from short-term effects of exercise to using daily activity measurements as vital signs in diabetes care centers, the health and fitness benefits of resistance and aerobic exercise training, exercise prescription as a form of complementary medicine, as well as the challenges faced by children and/or adults regarding exercise programming at the community level. Our goal is to cover a broad range of diabetes research, including all forms of diabetes mellitus across all life spans.

Dr. Jason R. Jaggers
Guest Editor

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Keywords

  • clinical exercise physiology
  • fitness
  • pediatric endocrinology
  • accelerometry
  • sport medicine
  • prediabetes
  • type 1 diabetes
  • type 2 diabetes
  • alternative therapy
  • exercise prescription

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Related Special Issue

Published Papers (5 papers)

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Research

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12 pages, 306 KiB  
Article
Knowledge, Attitudes, and Practice Regarding Physical Exercise in Type 2 Diabetic and Non-Diabetic Staff at a Tertiary Institution
by Mbuso Sibazo and Takshita Sookan-Kassie
Int. J. Environ. Res. Public Health 2024, 21(12), 1707; https://doi.org/10.3390/ijerph21121707 - 22 Dec 2024
Viewed by 597
Abstract
Type 2 diabetes mellitus (T2DM) has become a global epidemic, where increasing urbanization encourages sedentary lifestyles. Persistent physical inactivity can lead to T2DM and increase the risk of T2DM in the general population. Therefore, the aim of this study was to explore the [...] Read more.
Type 2 diabetes mellitus (T2DM) has become a global epidemic, where increasing urbanization encourages sedentary lifestyles. Persistent physical inactivity can lead to T2DM and increase the risk of T2DM in the general population. Therefore, the aim of this study was to explore the knowledge, attitudes, and practices (KAP) regarding exercise amongst T2DM and non-diabetic (ND) staff at a tertiary institution in KwaZulu Natal South Africa. A total of 166 responses were received: a total of 16 responses (9.6%) were T2DM, and 150 responses (90.0%) were non-diabetic (ND). The demographics included 66.3% females and 33.7% males who consented to taking part, 62.7% were black, 18.7% were Indian, 12% were white, 5.4% were colored, and 1.2% were other. A cross-sectional descriptive survey design, utilizing a modified validated online knowledge, attitudes, and practice questionnaire, was used to collect data. Descriptive statistics were used for the analysis: inferential statistics; the ordinal (1–5) Likert scale; t-tests; and chi-square tests. The level of statistical significance was set at p ≤ 0.05. No significant differences were found between the T2DM and ND groups except in their attitude towards exercise, which showed three items with significant differences. The ND group agreed significantly more than the T2DM group that they looked forward to exercising (p = 0.002), and even without company, they exercised regularly (p = 0.042). The T2DM group agreed significantly more with the statement that they had asked their doctor if there was medicine available to make them better without doing any exercise (p = 0.002). The overall KAP results of the current study found that both participants diagnosed with T2DM and those in the ND group know about exercise and have a good attitude toward exercise. However, both groups still have poor practice regarding physical activity. Full article
(This article belongs to the Special Issue 2nd Edition: Diabetes in Sports and Exercise Medicine)
9 pages, 554 KiB  
Article
Diabetes-Related Knowledge, Attitude, and Practice Towards Exercise and Its Benefits Among Individuals with Type 2 Diabetes Mellitus
by Nokuthula Mtshali and Takshita Sookan-Kassie
Int. J. Environ. Res. Public Health 2024, 21(11), 1529; https://doi.org/10.3390/ijerph21111529 - 18 Nov 2024
Cited by 1 | Viewed by 1100
Abstract
Regular exercise has been shown to have a positive effect on the health outcomes of individuals with type 2 diabetes mellitus (T2DM); however, it is still underutilized in developing countries. This study investigated diabetes-related knowledge, attitudes, and practice toward exercise and its benefits [...] Read more.
Regular exercise has been shown to have a positive effect on the health outcomes of individuals with type 2 diabetes mellitus (T2DM); however, it is still underutilized in developing countries. This study investigated diabetes-related knowledge, attitudes, and practice toward exercise and its benefits among individuals with T2DM. A total of one hundred and ninety-nine participants (male = 21.6% and female = 78.4%) with T2DM, aged between 18 and 75, (43.77 SD± 14.78) years, participated in the study. A validated diabetes-related knowledge, attitude, and practice questionnaire, evaluated by true/false or unsure, was utilized in the study. Descriptive and inferential statistics analysis was used to analyze data with the significance set at p < 0.05. The results demonstrated poor diabetes-related knowledge of exercise (p < 0.001). The majority of the study participants, 163 (81.90%) with T2DM, did not know that physical activity and exercise are different. About 158 (70.40%) of the study participants felt that their regular work was an adequate substitution for exercise. More than 50% of the study participants demonstrated a positive practice towards exercise and its benefits towards T2DM (p < 0.001). The majority of the study participants reported poor knowledge and a negative attitude toward diabetes. However, their diabetes-related practices were satisfactory. Full article
(This article belongs to the Special Issue 2nd Edition: Diabetes in Sports and Exercise Medicine)
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15 pages, 2164 KiB  
Article
The Effect of Starting Blood Glucose Levels on Serum Electrolyte Concentrations during and after Exercise in Type 1 Diabetes
by Zeinab Momeni, Normand G. Boulé, Carla M. Prado, Heather A. Hinz and Jane E. Yardley
Int. J. Environ. Res. Public Health 2023, 20(3), 2109; https://doi.org/10.3390/ijerph20032109 - 24 Jan 2023
Viewed by 2254
Abstract
Fear of hypoglycemia is a major exercise barrier for people with type 1 diabetes (PWT1D). Consequently, although guidelines recommend starting exercise with blood glucose (BG) concentration at 7–10 mmol/L, PWT1D often start higher, potentially affecting hydration and serum electrolyte concentrations. To test this, [...] Read more.
Fear of hypoglycemia is a major exercise barrier for people with type 1 diabetes (PWT1D). Consequently, although guidelines recommend starting exercise with blood glucose (BG) concentration at 7–10 mmol/L, PWT1D often start higher, potentially affecting hydration and serum electrolyte concentrations. To test this, we examined serum and urine electrolyte concentrations during aerobic exercise (cycling 45 min at 60%VO2peak) in 12 PWT1D (10F/2M, mean ± SEM: age 29 ± 2.3 years, VO2peak 37.9 ± 2.2 mL·kg−1·min−1) with starting BG levels: 8–10 (MOD), and 12–14 (HI) mmol/L. Age, sex, and fitness-matched controls without diabetes (CON) completed one exercise session with BG in the normal physiological range. Serum glucose was significantly higher during exercise and recovery in HI versus MOD (p = 0.0002 and p < 0.0001, respectively) and in MOD versus CON (p < 0.0001). During exercise and recovery, MOD and HI were not significantly different in serum insulin (p = 0.59 and p = 0.63), sodium (p = 0.058 and p = 0.08), potassium (p = 0.17 and p = 0.16), calcium (p = 0.75 and 0.19), and magnesium p = 0.24 and p = 0.09). Our findings suggest that exercise of moderate intensity and duration with higher BG levels may not pose an immediate risk to hydration or serum electrolyte concentrations for PWT1D. Full article
(This article belongs to the Special Issue 2nd Edition: Diabetes in Sports and Exercise Medicine)
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9 pages, 639 KiB  
Article
Association between Intensity Levels of Physical Activity and Glucose Variability among Children and Adolescents with Type 1 Diabetes
by Jason R. Jaggers, Kristi M. King, Timothy McKay, Ryan J. Dyess, Bradly J. Thrasher and Kupper A. Wintergerst
Int. J. Environ. Res. Public Health 2023, 20(2), 1623; https://doi.org/10.3390/ijerph20021623 - 16 Jan 2023
Cited by 4 | Viewed by 2483
Abstract
Studies would indicate a reduction in hemoglobin A1c levels following moderate and/or vigorous physical activity (PA) for people managing diabetes. However, prior investigations rarely looked at glucose variability in an adolescent population. Purpose: The purpose of this investigation was to test the relationship [...] Read more.
Studies would indicate a reduction in hemoglobin A1c levels following moderate and/or vigorous physical activity (PA) for people managing diabetes. However, prior investigations rarely looked at glucose variability in an adolescent population. Purpose: The purpose of this investigation was to test the relationship between physical activity intensity levels and glucose variability in a sample of adolescents with type 1 diabetes mellitus, and if the amount of time accumulated for each intensity level is predictive of changes in glucose variability. Methods: Glucose variability was determined using continuous glucose monitor data and physical activity intensity time was retrieved through Fitabase®. Both glucose and physical activity data were collected over a two-week timeframe. Data analysis was completed using Pearson’s correlation and a simple linear regression with a p-value of 0.05 to determine significance. Results: A significant inverse relationship was observed (p = 0.04) between glucose variability and average minutes of daily moderate-intensity activity (r = −0.59), as well as moderate and vigorous physical activity (MVPA) combined (r = −0.86; p = 0.03). A simple linear regression indicated that only MVPA was a significant predictor of glucose variability (β = −0.12; 95% CI: −0.23–−0.01, p = 0.03). Conclusion: These data demonstrated that the total amount of daily physical activity is important when properly managing type 1 diabetes mellitus, but time spent in MVPA over two weeks may have an inverse relationship with glucose variability in children and adolescents over a span of two weeks. Full article
(This article belongs to the Special Issue 2nd Edition: Diabetes in Sports and Exercise Medicine)
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Review

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14 pages, 1049 KiB  
Review
Type 1 Diabetes and the Menstrual Cycle: Where/How Does Exercise Fit in?
by Saru Toor, Jane E. Yardley and Zeinab Momeni
Int. J. Environ. Res. Public Health 2023, 20(4), 2772; https://doi.org/10.3390/ijerph20042772 - 4 Feb 2023
Cited by 13 | Viewed by 6531
Abstract
Regular exercise is associated with substantial health benefits for individuals with type 1 diabetes (T1D). However, the fear of hypoglycemia (low blood glucose) due to activity-induced declines in blood glucose levels acts as a major barrier to partaking in exercise in this population. [...] Read more.
Regular exercise is associated with substantial health benefits for individuals with type 1 diabetes (T1D). However, the fear of hypoglycemia (low blood glucose) due to activity-induced declines in blood glucose levels acts as a major barrier to partaking in exercise in this population. For females with T1D, hormonal fluctuations during the menstrual cycle and their effects on blood glucose levels can act as an additional barrier. The impact that these cyclic changes may have on blood glucose and insulin needs and the consequent risk of hypoglycemia during or after exercise are still unknown in this population. Therefore, in this narrative review, we gathered existing knowledge about the menstrual cycle in T1D and the effects of different cyclic phases on substrate metabolism and glucose response to exercise in females with T1D to increase knowledge and understanding around exercise in this underrepresented population. This increased knowledge in such an understudied area can help to better inform exercise guidelines for females with T1D. It can also play an important role in eliminating a significant barrier to exercise in this population, which has the potential to increase activity, improve mental health and quality of life, and decrease the risk of diabetes-related complications. Full article
(This article belongs to the Special Issue 2nd Edition: Diabetes in Sports and Exercise Medicine)
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