Frequent Interruptions with Light-intensity Calisthenics Reduced Postprandial Hyperglycemia during Prolonged Sitting
AbstractIndividuals with high levels of sedentary time may have significantly increased the relative riskof diabetes, cardiovascular events, cardiovascular mortality, and all-cause mortality,respectively. This study examined the acute effects of interrupting prolonged sitting with lightintensity calisthenics on postprandial hyperglycemia in healthy adults. Thirty normoglycemicuniversity students participated in this research. Each participant consumed standard 75-gramsglucose. The treatment was divided into two trials. First, the control trial, the participants wereinstructed to sit for five straight hours. The profile of changes in blood glucose was taken at aninterval of 30 minutes from minutes 0, 30, 90, 120, 180, 240, and 300. Second, theexperimental trial was the same with the control trial except that the participants did lightintensity calisthenics for 3 minutes then sit for 27 minutes, repeating this activity at the 30-minute intervals. Data were analyzed using a paired T-test. The baseline data between trialswere not significantly different in some points of blood glucose recording. There was adecrease in the blood glucose level of the experimental group. However, those decrementswere not significant statistically. This study found that interrupting sitting time with shortbouts of light-intensity calisthenics reduced postprandial hyperglycemia. However, this lightintensity activity reduced the postprandial hyperglycemia although not at a significant level.Given these positive effects observed in healthy participants, it seems prudent to regularlybreak periods of prolonged sitting with brief bouts of activity. Further study is recommendedon more frequent light-intensity bouts of exercise and shorter periods of uninterrupted sittingand at a higher intensity.
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