Original StudyExercise Effects on Postprandial Glycemia, Mood, and Sympathovagal Balance in Type 2 Diabetes
Section snippets
Participants
A total of 12 persons (9 female, 3 male) with uncomplicated T2D treated with diet and/or oral antidiabetic medications participated in this investigation. Eleven of the participants were currently taking oral glucose-lowering drugs, and one was controlled with lifestyle only; none were using exogenous insulin. Only persons who were not using beta-blockers were allowed to participate due to that class of medications' potential impact on HRV measures. The study was approved by the university
Results
Characteristics of participants are presented in Table 2. Participants demonstrated a significantly greater quantity of motion during TM than CON (91%, P = .01) and TT (72%, P = .01) (Figure 1). Mean heart rate during TM (122.8 ± 5.4 bpm) was significantly higher than TT (96.9 ± 5.0, P = .05) and CON (69.1 ± 8.4, P = .001). The percentage of age-predicted maximum heart rate during TM (76.4 ± 0.0%) was also significantly higher than both CON (42.9 ± 0.0%) and TT (60.5 ± 0.0%) (P < .05).
Discussion
The present investigation examined the differential effects of 2 different types of physical activity following an identical dinner meal on postprandial glycemia, HRV, and mood state in individuals with type 2 diabetes. Postprandial walking resulted in a significant decrease in plasma glucose immediately following 30 minutes of exercise at a self-selected pace. This finding was, however, followed by a rebound increase in plasma glucose in the TM group 30 minutes after the cessation of exercise
Conclusions
The findings of the current study suggest that 30 minutes of self-paced walking following the dinner meal may be more effective at lowering postprandial glycemia in individuals with T2D than a similar duration of table tennis undertaken against a robot or no activity. We did not, however, find an acute impact of exercise on measures of heart rate variability, suggesting that chronic improvements in HRV found following exercise training do not result from a single bout, which may do little more
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Low intensity resistance exercise attenuates the relationship between glucose and autonomic nervous system indicators during 24 hours in women with type 2 diabetes
2018, Science and SportsCitation Excerpt :Although these authors have not investigated association with the autonomic nervous system, it is very likely that aerobic exercise at intensity below an anaerobic threshold [29] is also attenuating possible blood glucose correlations with autonomic cardiac variables. These results taken together with the findings of the present study (Fig. 4), can have important clinical application in cardiovascular health for the individual with T2D, which ones once reducing the hyperglycemia could attenuate the glycotoxic impact and consequent deleterious effect on the cardiac structure [3] and the autonomic nervous system [4–8], what would increase the risk of autonomic dysfunction [7,9]. The correlations evidenced in control sessions of the present study corroborate other studies confirming the possible deleterious effect of hyperglycemia on the cardiac autonomic modulation [8,14–16].
The Complexities of Diabetes in Older Persons
2016, Journal of the American Medical Directors AssociationClinical Update on Nursing Home Medicine: 2014
2014, Journal of the American Medical Directors AssociationCitation Excerpt :Caloric restriction and weight loss is not recommended, as it has been associated with increased mortality in diabetic individuals similar to the effects in other older persons.160–164 Exercise, particularly of the resistance type, has been as effective in older diabetic individuals as in other older persons.165–169 This is particularly important, as diabetic individuals have accelerated sarcopenia.170–172
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2014, Journal of the American Medical Directors AssociationThe Effect of Exercise on Cardiovascular Autonomic Nervous Function in Patients with Diabetes: A Systematic Review
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This investigation was funded by the Old Dominion University Office of Research in Norfolk, Virginia.
The authors declare no conflicts of interest.