Development of Pre-Packaged Pulse-Based Meals to Ameliorate the Negative Health Consequences of Sedentary Behavior
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 26
- 试验地点
- 2
- 主要终点
- Insulin sensitivity
研究概览
简要总结
The hypothesis is that consumption of pulse-based foods (i.e. containing chickpeas, lentils, and split peas) during the workday will improve insulin sensitivity, glucose tolerance, blood lipids, body composition, and blood pressure in sedentary office workers.One-hundred office workers from a university campus will participate in a cross-over study where they will be randomized (i.e. assigned by chance) to receive pre-packaged pulse-based lunches and snacks to replace their usual lunches/snacks during the work day OR to continue consuming their usual diets for two months. After the first dietary intervention, they will undergo a 1-month "wash-out" and then participate in two months of the opposite dietary intervention. The main outcome to be assessed is change in glucose and insulin (i.e. blood sugar control) determined during an oral glucose tolerance test. Secondary outcomes include changes in body composition, lipids, and blood pressure.
During the pulse-based diet phases, participants will be supplied with a ready-to-eat lunch and two snacks to eat during each workday. These will contain a total of 150g/d dry weight (250g/d wet weight) pulses
详细描述
Sedentary behaviour has been deemed the "new smoking" based on multiple and potent negative impacts on health. Moreover, sedentary behaviour is a strong predictor of type 2 diabetes risk and cardiovascular disease. Previous studies have show that pulse-based meals derived from lentils, beans, chickpeas, and peas are effective for alleviating risk factors associated with diabetes and cardiovascular disease in clinical populations including older adults, overweight and obese individuals, and women with polycystic ovary syndrome; however, to date, there have been no nutrition-based interventions for alleviating risk factors for diabetes specifically targeting office workers exposed to long periods of sitting. Although people are aware of the health benefits of pulses, a major barrier to increased consumption continues to be a lack of knowledge on how to prepare pulse-based meals. This proposed study is designed to overcome this barrier. The main goal of this research study is to determine whether improvements in cardio-metabolic health can be realized by giving people pulse-based lunches and snacks to replace their regular workplace lunches and snacks. In this randomized controlled trial, 100 office workers from the University of Saskatchewan will participate in a cross-over study where they will be randomized into one of two diets for 2 months: Receive pre-packaged pulse-based lunches and snacks to replace their usual lunches/snacks during the work day OR to continue consuming their usual diets for two months. After a one-month washout, they will cross-over to the other condition. The primary outcome measure, Matsuda Index (determined by blood glucose and insulin responses to an oral glucose tolerance test), will be assessed before each diet phase and at the end (i.e. two months) of each diet phase. Secondary outcome measures (body composition, waist girth, lipids, blood pressure will also be assessed.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Prevention
- 盲法
- Double (Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Men and Women
- •18y or older
- •Engaged in >5 hours per day sitting
排除标准
- •Diagnosed with diabetes
- •taking glucose or lipid-lowering medication
- •Regular consumers of pulses (1.5 cups (250g) or greater of pulses per week)
- •Engaged in 60 minutes or greater of physical activity per day
结局指标
主要结局
Insulin sensitivity
时间窗: Change from baseline to 8 weeks
Matsuda Index determined by glucose and insulin response to oral glucose tolerance test
次要结局
- Fasting glucose(Change from baseline to 8 weeks)
- Low-density lipoprotein cholesterol(Change from baseline to 8 weeks)
- Lean tissue mass(Change from baseline to 8 weeks)
- Insulin area under the curve(Change from baseline to 8 weeks)
- Fat mass(Change from baseline to 8 weeks)
- High-density lipoprotein cholesterol(Change from baseline to 8 weeks)
- Glucose area under the curve(Change from baseline to 8 weeks)
- Fasting insulin(Change from baseline to 8 weeks)
- Total cholesterol(Change from baseline to 8 weeks.)
- Triglycerides(Change from baseline to 8 weeks)
- Waist Girth(Change from baseline to 8 weeks)
- Systolic blood pressure(Change from baseline to 8 weeks)
- Diastolic blood pressure(Change from baseline to 8 weeks)
研究者
Phil Chilibeck
Professor
University of Saskatchewan