The Effect of a Phospholipid Drink on Cognitive Performance Under Acute Stress
A Randomised, Double-blind, Parallel Groups, Placebo-controlled 6 Weeks Human Intervention Study Investigating the Effect of a Phospholipid Drink on Cognitive Performance
研究概览
详细说明
The study conforms to a randomised, double-blind, placebo controlled, parallel groups design examining cognitive performance and physiological/subjective stress responses after a psychosocial/physical stressor before and after a six week daily intake of an phospholipid containing drink vs. placebo.
The study will examine:
Cognitive performance following acute stress prior to, and following 6-weeks intake of a phospholipid containing drink or a placebo analogue.
Physiological and subjective stress responses following acute stress prior to, and following 6-weeks intake of a phospholipid containing drink or a placebo analogue
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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West Yorkshire
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Leeds、West Yorkshire、英国、LS29JT
- Human Appetite Research Unit, University of Leeds
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Male ≥18 years old
- Healthy (self-report health questionnaire)
- BMI <30 kg/m²
- Free from medication (prescribed and 'over-the-counter')
Exclusion Criteria:
- Current psychological affective/mood disorders
- Self-reported physical disorder/disease (significant cardiovascular, autoimmune, endocrine, gastrointestinal or neurological conditions, chronic pain, or sleep disorders)
- High chronic stress
- Smokers
- Recreational drug use (within the last month)
- Night shift work
- Hypertension (resting blood pressure exceeding 160/95 mmHg)
- Skin conditions (e.g. eczema) on hands
- Food allergies
- Participation in a clinical study within a month prior to screening or during participation
- Participation in any of our previous stress induction studies
学习计划
研究是如何设计的?
设计细节
- 主要用途:基础科学
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:四人间
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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有源比较器:Phospholipid drink
Participants will consume a phospholipid drink daily for 6 weeks
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Participant in an intervention parallel group will consume a drink with added phospholipids
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安慰剂比较:Placebo milk drink
Participants will consume a placebo drink (no added phospholipids) daily for 6 weeks
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Participant in an intervention parallel group will consume a drink without added phospholipids
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Cognitive performance change from baseline
大体时间:Week 1 (baseline) and week 6
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Performance on a cognitive test battery at baseline will be compared to performance at week 6
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Week 1 (baseline) and week 6
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Salivary cortisol change from baseline
大体时间:Week 1 (baseline) and week 6
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Salivettes will be used to collect salivary cortisol response across exposure to a laboratory stress protocol on two occasions separated by 6 weeks
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Week 1 (baseline) and week 6
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Blood pressure (systolic/diastolic) change from baseline
大体时间:Week 1 (baseline) and week 6
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An ambulatory blood pressure monitor will be used to collect blood pressure response profiles across exposure to a laboratory stress protocol on two occasions separated by 6 weeks
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Week 1 (baseline) and week 6
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Heart rate change from baseline
大体时间:Week 1 (baseline) and 6 weeks
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An ambulatory blood pressure monitor will be used to collect heart rate response profiles across exposure to a laboratory stress protocol on two occasions separated by 6 weeks
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Week 1 (baseline) and 6 weeks
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Subjective stress change from baseline
大体时间:Week 1 (baseline) and 6 weeks
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The Stress and Arousal Checklist (Mackay, 1978)will be used to collect subjective stress response profiles across exposure to a laboratory stress protocol on two occasions separated by 6 weeks
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Week 1 (baseline) and 6 weeks
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Subjective mood change from baseline
大体时间:Week 1 (baseline) and 6 weeks
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The Profile of Mood States (Mc Nair et al., 1971)will be used to collect subjective mood response profiles across exposure to a laboratory stress protocol on two occasions separated by 6 weeks
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Week 1 (baseline) and 6 weeks
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合作者和调查者
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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