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Cognition Intervention Study Dortmund

NCT ID: NCT01401153

Last Updated: 2012-11-09

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

105 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-05-31

Study Completion Date

2011-07-31

Brief Summary

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Major aim of this study is to add scientifically proven insights into cognitive effects of meals to the existing recommendations for school meals in Germany. As a first step the short-term effects of skipping lunch on children's cognitive functioning in the afternoon will be examined in a cross-over trial. The study is conducted in a large comprehensive school in Gelsenkirchen (Germany) including about 150 children.

Detailed Description

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Because of cerebral particularities, children may react sensitive to short-term variations of nutrient supply. Therefore, an optimised composition of meals at nutritionally favourable mealtime should be considered for optimal cognitive performance. The increasing implementation of all-day schools in Germany requires the children's catering at school. However, also the number of 'meal skippers' is increasing among children. Thus, the effect of skipping of the midday meal 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 morning is standardized. The intervention is integrated in the usual 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 only a non-caloric beverage (intervention of 'skipping meal'), 12.45 p.m. to 1.15 p.m. regular lunch break, 1.15 p.m. computerized tests of cognitive functioning, 2 p.m. lunch for the 'skipping meal'-group.

Parameters of cognition with relevance to everyday school life are measured by a computerized test battery of the 'Wiener Testsystem'. Usual eating behaviour, sleep behaviour, physical activity, parental education and migration background are determined as control variables by questionnaires for children, parents and teachers. Beside the Body Mass Index, the individual IQ is measured by a paper-pencil-test.

Conditions

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Cognition - Other

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Blinding Strategy

NONE

Study Groups

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Having lunch/skipping lunch

Lunch ad libitum on test day 1 and no lunch on test day 2. Water available on both days.

Group Type EXPERIMENTAL

Skipping lunch

Intervention Type OTHER

Just water.

Skipping lunch/having lunch

No lunch on test day 1 and lunch ad libitum on test day 2. Water available on both days.

Group Type EXPERIMENTAL

Skipping lunch

Intervention Type OTHER

Just water.

Interventions

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Skipping lunch

Just water.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* All sixth grade students of Gesamtschule Berger Feld with the consent of parents and child

Exclusion Criteria

* Metabolic diseases or special diet
Minimum Eligible Age

10 Years

Maximum Eligible Age

15 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Research Institute of Child Nutrition, Dortmund

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Mathilde Kersting, Prof. Dr.

Role: STUDY_DIRECTOR

Research Institute of Child Nutrition, Dortmund

Other Identifiers

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03MT110527328495

Identifier Type: OTHER_GRANT

Identifier Source: secondary_id

COG0611DO

Identifier Type: -

Identifier Source: org_study_id