Cognition Intervention Study Dortmund- Continued (Coco)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 154
- 试验地点
- 2
- 主要终点
- Shifting: Change of total switch-costs [ms]
研究概览
简要总结
The Cognition Intervention Study Dortmund (CogniDo) and the Cognition Intervention Study Dortmund PLUS (CogniDo PLUS) investigated the short-term effects of having school lunch versus skipping it on children's basal (CogniDo) and executive (CogniDo PLUS) cognitive functions in the afternoon. The present Coco study connect this two previous studies and investigates the effect of having school lunch versus skipping it on children's basal and executive cognitive functions later in the afternoon.
详细描述
Because of cerebral particularities, children may react highly sensitive to variations of nutrient supply. Therefore, an optimised composition of meals at favourable mealtime should be considered for optimal cognitive performance. The increasing implementation of all-day schools in Germany requires the children's catering for lunch at school. However, the number of 'meal skippers' is increasing among children and adolescents. Thus, the effect of skipping lunch at school on cognitive functioning is examined in this experimental cross-over trial. As prior intake of food can have an influence on the physiological effect of test meal, the children's dietary intake in the mid-morning is standardized. The intervention is integrated in everyday school life:
9.15 a.m. standardized snack within the frame of the regular break, 9.45 a.m. to 12.25 p.m. everyday school life, 12.25 p.m. either lunch (control) or water as a beverage (intervention of 'skipping meal'), 12.45 p.m. to 1.15 p.m. regular lunch break, 1.15 p.m. to 14.10 p.m. regular school lesson. 14.15 p.m. computerized tests of executive cognitive and basal (alertness) functioning, 3 p.m. lunch for the 'skipping meal'-group. Parameters of cognition with relevance to everyday school life are measured by a computerized test program developed by the Institute of Working Learning and Aging (ALA). Usual eating behaviour, sleep behaviour, physical activity and parental education were determined as control variables by questionnaires for children, parents.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 盲法
- None
入排标准
- 年龄范围
- 10 Years 至 14 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •All fifth and sixth grade students of Gesamtschule Berger Feld with the consent of parents and child
排除标准
- •Metabolic diseases or special diet
结局指标
主要结局
Shifting: Change of total switch-costs [ms]
时间窗: Participants were tested twice with one week wash out (1h after having/skipping lunch)
Measuring global task-switching costs by a three-part computer trial. 1. Non-switch: digits from 1 to 26 in random order are to put in order. 2. Non-switch: Same as a) with letters from A to Z 3. switch: digits 1 to 13 and letters A to M in random order to put in altering ascending order (digit, letter)
tonic alertness:change of numbers of omission and commission errors [n]
时间窗: Time Frame: Participants were tested twice with one week wash out (1h after having/skipping lunch)
measures the level of alertness in response to a simple visual stimulus. Mean reaction time and the deviation of reaction time; subsidiary outcomes are the numbers of omission and commission errors.
updating: change of ratio of false alarms [%]
时间窗: Time Frame: Participants were tested twice with one week wash out (1h after having/skipping lunch)
Continuous monitoring and quick addition or deletion of contents within the working memory A sequence of 106 items (pictures of fruit and vegetables) is shown to the participants. A reaction is required if the actual shown item was equal to the item shown in the second to last.
tonic alertness: change of deviation of reaction time [ms]
时间窗: Time Frame: Participants were tested twice with one week wash out (1h after having/skipping lunch)
measures the level of alertness in response to a simple visual stimulus. Mean reaction time and the deviation of reaction time; subsidiary outcomes are the numbers of omission and commission errors.
Shifting: Change of total reaction time for b) [ms]
时间窗: Participants were tested twice with one week wash out (1h after having/skipping lunch)
Measuring global task-switching costs by a three-part computer trial. 1. Non-switch: digits from 1 to 26 in random order are to put in order. 2. Non-switch: Same as a) with letters from A to Z 3. switch: digits 1 to 13 and letters A to M in random order to put in altering ascending order (digit, letter)
updating: change of ratio of missing [%]
时间窗: Time Frame: Participants were tested twice with one week wash out (1h after having/skipping lunch)
Continuous monitoring and quick addition or deletion of contents within the working memory A sequence of 106 items (pictures of fruit and vegetables) is shown to the participants. A reaction is required if the actual shown item was equal to the item shown in the second to last.
Shifting: Change of total reaction time for a) [ms]
时间窗: Participants were tested twice with one week wash out (1h after having/skipping lunch)
Measuring global task-switching costs by a three-part computer trial. 1. Non-switch: digits from 1 to 26 in random order are to put in order. 2. Non-switch: Same as a) with letters from A to Z 3. switch: digits 1 to 13 and letters A to M in random order to put in altering ascending order (digit, letter)
updating: change of mean reaction time [ms]
时间窗: Time Frame: Participants were tested twice with one week wash out (1h after having/skipping lunch)
Continuous monitoring and quick addition or deletion of contents within the working memory A sequence of 106 items (pictures of fruit and vegetables) is shown to the participants. A reaction is required if the actual shown item was equal to the item shown in the second to last.
tonic alertness: change of mean reaction time [ms]
时间窗: Time Frame: Participants were tested twice with one week wash out (1h after having/skipping lunch)
measures the level of alertness in response to a simple visual stimulus. Mean reaction time and the deviation of reaction time; subsidiary outcomes are the numbers of omission and commission errors.
次要结局
未报告次要终点