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临床试验/ISRCTN29176549
ISRCTN29176549进行中(未招募)Unknown

Comparing the effects of acute versus chronic, flavanol-rich cocoa intake on cerebral haemodynamics, metabolism, and cognitive function in healthy young (18 to 40 year-old) and older (65 + year-old) adults

University of Birmingham0 个研究点目标入组 100 人开始时间: 2024年9月16日最近更新:
适应症

试验速览

阶段
Unknown
状态
进行中(未招募)
入组人数
100
主要终点
Prefrontal cortical concentrations of oxygenated and deoxygenated haemoglobin will be measured using broadband near-infrared spectroscopy (bNIRS) during rest and physiological stress (i.e., hypoxia simulated with 11% oxygen delivery) at the following time points: i) on day 1, before (0 hours) and 2 hours after supplementation with either low- or high-flavanol cocoa (acute effect); ii) on day 28 and day 56, before (0 hours) cocoa supplementation (chronic effect); and iii) on day 56, 2 hours after cocoa supplementation (acute within chronic effect).

研究概览

简要总结

暂无简介。

研究设计

研究类型
Interventional

入排标准

性别
All

入选标准

  • Healthy male or female
  • Aged between 18 to 40 years old OR above 65 years old

排除标准

  • Consumption of more than 21 units of alcohol per week
  • A history of cardiovascular, respiratory, metabolic, liver, inflammatory, or neurological diseases, including but not limited to hypertension (blood pressure >140/90 mmHg), diabetes mellitus, asthma, elevated cholesterol, anemia, immune conditions, and smoking
  • Use of prescribed or over-the-counter medications (except for oral contraception)
  • Allergies or intolerances to any ingredients in the dietary supplement
  • Currently following a weight-reducing dietary regimen
  • Use of any dietary supplements, including fatty acids and vitamins
  • Long-term medication use or use of antibiotics in the past 3 months
  • Current infection (e.g., cold)
  • Pregnancy or plans to become pregnant (for females of reproductive age)

结局指标

主要结局

Prefrontal cortical concentrations of oxygenated and deoxygenated haemoglobin will be measured using broadband near-infrared spectroscopy (bNIRS) during rest and physiological stress (i.e., hypoxia simulated with 11% oxygen delivery) at the following time points: i) on day 1, before (0 hours) and 2 hours after supplementation with either low- or high-flavanol cocoa (acute effect); ii) on day 28 and day 56, before (0 hours) cocoa supplementation (chronic effect); and iii) on day 56, 2 hours after cocoa supplementation (acute within chronic effect).

次要结局

未报告次要终点

研究者

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