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Cognition Intervention Study Dortmund- Glycemic Index (CogniDo GI) (CogniDo-GI)

3 maja 2016 zaktualizowane przez: Research Institute of Child Nutrition, Dortmund
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 The Cognition Intervention Study Dortmund Continued (Coco) connected 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. The present study the Cognition Intervention Study Dortmund- Glycemic Index (CogniDo GI) examines the influence of the gylcemic index of lunch on cognitive performance of school children in the afternoon.

Przegląd badań

Szczegółowy opis

Glucose is the main fuel of the human brain. However, which impact the glycemic index of lunch has on cognitive performance is not clear. A recently published review by Philippou and Constantinou suggested cautiously that a low-GI meal may favor cognitive functions in adults, but note that their findings are inconclusive due to differences in study design, study sample (e.g. size, age), time of testing and the cognitive domain being examined. Because of cerebral particularities, children may react highly sensitive to variations of glycose 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.

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. lunch with a high GI-rice or a low GI-rice and a water beverage, 12.45 p.m. to 13.15 p.m. regular lunch break, 13.15 p.m. computerized tests of executive cognitive and basal (alertness) functioning.

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.

Typ studiów

Interwencyjne

Zapisy (Oczekiwany)

200

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

      • Dortmund, Niemcy, 44225
        • Rekrutacyjny
        • Germany Research Institute of Child Nutrition
        • Kontakt:

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

10 lat do 14 lat (Dziecko)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Opis

Inclusion Criteria:

  • all fifth and sixth grade students of Gesamtschule Berger Feld with the consent of parents and child

Exclusion Criteria:

  • Metabolic diseases or special diet

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Przydział: Randomizowane
  • Model interwencyjny: Zadanie krzyżowe
  • Maskowanie: Brak (otwarta etykieta)

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Dietary: high GI lunch
High GI-rice lunch ad libitum on test day 1 and low GI-rice lunch on test day 2. Water at libitum was constantly available on both days.
High GI: High-GI rice lunch ad libitum on test day 1 and low GI-rice lunch on test day 2. Water at libitum was constantly available on both days.
Eksperymentalny: Dietary: low GI lunch
Low GI-rice lunch ad libitum on test day 1 and high GI-rice lunch on test day 2. Water at libitum was constantly available on both days.
Low-GI: Low GI-rice lunch ad libitum on test day 1 and high GI-rice lunch on test day 2. Water at libitum was constantly available on both days.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Shifting: Change of total reaction time for a) [ms]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out

Measuring global task-switching costs by a three-part computer trial.

a. Non-switch: digits from 1 to 26 in random order are to put in order. b. Non-switch: Same as a) with letters from A to Z c. switch: digits 1 to 13 and letters A to M in random order to put in altering ascending order (digit, letter)

participants were tested on two test days (T1 and T2) with one week wash out
Shifting: Change of total reaction time for b) [ms
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out

Measuring global task-switching costs by a three-part computer trial.

a. Non-switch: digits from 1 to 26 in random order are to put in order. b. Non-switch: Same as a) with letters from A to Z c. switch: digits 1 to 13 and letters A to M in random order to put in altering ascending order (digit, letter)

participants were tested on two test days (T1 and T2) with one week wash out
Shifting: Change of total switch-costs [ms
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out

Measuring global task-switching costs by a three-part computer trial.

a. Non-switch: digits from 1 to 26 in random order are to put in order. b. Non-switch: Same as a) with letters from A to Z c. switch: digits 1 to 13 and letters A to M in random order to put in altering ascending order (digit, letter)

participants were tested on two test days (T1 and T2) with one week wash out
updating: change of ratio of missing [%]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out
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.
participants were tested on two test days (T1 and T2) with one week wash out
updating: change of ratio of false alarms [%]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out
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.
participants were tested on two test days (T1 and T2) with one week wash out
updating: change of mean reaction time [ms]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out
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.
participants were tested on two test days (T1 and T2) with one week wash out
tonic alertness: change of mean reaction time [ms]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out
measures the level of alertness in response to a simple visual stimulus. Mean reaction time
participants were tested on two test days (T1 and T2) with one week wash out
tonic alertness: change of deviation of reaction time [ms]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out
measures the level of alertness in response to a simple visual stimulus. Deviation of reaction time
participants were tested on two test days (T1 and T2) with one week wash out
tonic alertness:change of numbers of omission errors [n]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out
measures the level of alertness in response to a simple visual stimulus. subsidiary outcome is the numbers of omission errors.
participants were tested on two test days (T1 and T2) with one week wash out
tonic alertness:change of numbers of commission errors [n]
Ramy czasowe: participants were tested on two test days (T1 and T2) with one week wash out
measures the level of alertness in response to a simple visual stimulus. subsidiary outcome is the numbers of comission errors.
participants were tested on two test days (T1 and T2) with one week wash out

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Śledczy

  • Krzesło do nauki: Mathilde Kersting, Prof, Research Institut of Child Nutrition

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów

1 kwietnia 2016

Zakończenie podstawowe (Oczekiwany)

1 czerwca 2016

Ukończenie studiów (Oczekiwany)

1 grudnia 2016

Daty rejestracji na studia

Pierwszy przesłany

28 kwietnia 2016

Pierwszy przesłany, który spełnia kryteria kontroli jakości

3 maja 2016

Pierwszy wysłany (Oszacować)

5 maja 2016

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Oszacować)

5 maja 2016

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

3 maja 2016

Ostatnia weryfikacja

1 maja 2016

Więcej informacji

Terminy związane z tym badaniem

Słowa kluczowe

Inne numery identyfikacyjne badania

  • COG0416DO

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

Nie

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

produkt wyprodukowany i wyeksportowany z USA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

Badania kliniczne na Funkcja poznawcza

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