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标题：What is the Optimal FIT of Sedentary InterruptionBouts to Improve Cardiometabolic Health?
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作者：Shawn M. Keeling ; Shawn M. Keeling ; Christina A. Buchanan 等
期刊名称：Journal of exercise physiology online
印刷版ISSN：1097-9751
出版年度：2018
卷号：21
期号：2
页码：1-18
语种：English
出版社：American Society of Exercise Physiologists
摘要：Keeling SM, Buchanan CA, Dalleck LC. What is the Optimal FIT ofSedentary Interruption Bouts to Improve Cardiometabolic Health?JEPonline 2018;21(2):1-18. The purpose of this study was toquantify differences in markers of cardiometabolic health withdifferent frequency, intensity, and time (FIT) parameters to reducesedentary behavior. The subjects consisted of 7 men and 6 women(with a mean age ± SD of 74.2 ± 7.8 yrs >6 hrs of sedentarybehavior per day) who performed 4 treatments of sedentaryinterruption bouts (SIB) lasting one week each. The FIT of the SIBdiffered across each program. There were 1-wk long washout/controlperiods between each of the SIB treatments. Cardiometabolic riskfactors were measured weekly. The subjects performed a consistentexercise training program throughout the intervention to permitexamination of the independent effect of reducing sedentarybehavior through different SIB programs on cardiometabolic health.SIB1 (every 60 min, 2 METs, 5 min) elicited a significant increase(P<0.05) in plasma HDL by 21.2%, decrease in plasma triglycerideby 24.6%, and decrease in blood glucose by 6.1%, compared to thecontrol. SIB4 (every 120 min, 2 METs, 10 min) resulted in asignificant increase (P<0.05) in plasma HDL by 18.4%, decrease inplasma triglyceride by 23.0%, and a decrease in blood glucose by7.8%, compared to the control. Lastly, SIB2 (every 120 min, 2 METs,5 min) and SIB3 (every 120 min, 3 METs, 5 min) elicited nosignificant (P>0.05) cardiometabolic changes when compared to thecontrol. More frequent bouts of SIB (every 60 min) is most beneficialto cardiometabolic health. If the SIB is less frequent (such as >60min), a longer duration of interruption bout activities (i.e., 10 min) ismore likely to be favorable to cardiometabolic health.
关键词：Metabolic Syndrome;Risk Factor;Sitting Time