Table 2.
Relationship between sedentary behavior and physical activity with glycemic variability.
| Author (publication date) | Study design Number of participants |
Primary findings | Conclusion | Strengths and limitations |
|---|---|---|---|---|
| Non-diabetic | ||||
| Gude F et al. (2017)40 |
Cross-sectional; n = 622 |
No relationship found between physical activity status with any glycemic variability indices in non-diabetic adults. |
Physical activity status may not relate to glycemic variability indices in non-diabetic adults. |
Strengths: Large diverse sample of adults Limitations: Cross-sectional design; subjective assessment of physical activity status |
| Type 1 diabetes | ||||
| Martyn-Nemeth P et al. (2017)36 |
Prospective repeated-measures design; n = 35 |
Total physical activity minutes did not relate to glycemic variability assessed as the SD of the 24-h mean glucose concentration. |
Increases in total physical activity performed throughout the day may not relate to lower glycemic variability in type 1 diabetic adults. |
Strengths: Actigraphy-assessed physical activity Limitations: Small sample size; physical activity was not a primary outcome of this study |
| Type 2 diabetes | ||||
| Paing AC et al. (2018)37 | Cross-sectional; n = 37 | Sedentary time negatively and breaks in sedentary time positively associated with time spent in euglycemia. | Decreasing sedentary time, breaking up sedentary time, or a combination of these sedentary behaviors potentially influence time spent in euglycemia in type 2 diabetic adults. |
Strengths: Actigraphy-assessed sedentary time Limitations: Cross-sectional design; small sample size |
| Paing AC et al. (2020)38 | Longitudinal; n = 37 | Increased sedentary time positively associated with higher glucose concentrations and time spent in-range. | Reducing sedentary time and promoting breaks in sedentary time could improve glucose regulation in type 2 diabetes adults. |
Strengths: Actigraphy-assessed sedentary time Limitations: Cross-sectional design; small sample size |
| McMillan KA et al. (2020)39 | Longitudinal; n = 37 | No association between total sedentary time and mean glucose Sedentary bout duration was positively associated with mean glucose and glucose SD |
Sedentary bout duration but not sedentary time was associated with mean glucose and glucose variability. |
Strengths: Actigraphy-assessed sedentary time; individual level analysis Limitations: Cross-sectional design; small sample size |
Table 2 presents studies that provided information regarding the association between sedentary time and physical activity with glycemic control and glycemic variability in non-diabetic, as well as type 1 and type 2 diabetic adults.
The table includes: 1) author information; 2) study design; 3) findings related to the association between sedentary time and physical activity with glycemic control and glycemic variability; 4) conclusions derived from the findings between the relationship between sedentary time and physical activity with glycemic control and glycemic variability; 5) strength and limitations of each study.
SD = standard deviation; mg/dL = milligrams per deciliter.