Clinical Trial Details
— Status: Active, not recruiting
Administrative data
| NCT number |
NCT05982860 |
| Other study ID # |
BARTU 01 |
| Secondary ID |
|
| Status |
Active, not recruiting |
| Phase |
N/A
|
| First received |
|
| Last updated |
|
| Start date |
June 23, 2023 |
| Est. completion date |
September 3, 2024 |
Study information
| Verified date |
October 2023 |
| Source |
Duzce University |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Interventional
|
Clinical Trial Summary
American football is a high-contact sport, also known as a collision sport. American football
players are exposed to various magnitudes and frequencies of head impacts throughout the
season. Accordingly, during the American football season, there is an increase in biomarkers
that may be associated with brain damage and the risk of developing neurodegenerative
diseases later in life. In addition, oxidative stress and inflammation can also increase in
athletes during the American football season. This study was planned with the thought that
the MIND diet, which is beneficial for brain health with its antioxidant and
anti-inflammatory effects, may have positive effects on oxidative stress, inflammation and
neurodegenerative risk biomarkers in American football players.
The goal of this clinical trial is to examine the effects of the MIND diet on oxidative
stress, inflammation and neurodegenerative risk biomarkers in American football players. The
main question it aims to answer are:
• [Question] Does the MIND diet lowers or reduce the levels of oxidative stress, inflammation
and neurodegenerative risk biomarkers in American football players?
Participants will be randomized into 2 groups MIND diet and control group. The current diet
of the players in the control group will not be interfered with during the competition
period, but the current nutrition of the players in the MIND diet group will be adapted to
the MIND diet according to the food groups in the MIND diet components and their consumption
frequencies.
The players in the MIND diet group will be asked to include the food groups in the MIND diet
in their diet in accordance with their consumption frequency.
Researchers will compare the MIND diet and control groups to see if the MIND diet improves
oxidative stress, inflammation and neurodegenerative risk biomarkers.
Description:
American football is one of the contact sports with the highest risk in terms of exposure to
repeated head impacts and the formation of neurodegenerative diseases that negatively affect
the quality of life in the later stage of life. According to studies conducted in recent
years, these athletes have a high risk of developing neurodegenerative diseases such as
Alzheimer's, amyotrophic lateral sclerosis (ALS) and chronic traumatic encephalopathy (CTE)
later in life. It has been reported that there are increases in the levels of oxidative
stress, inflammation and neurodegenerative risk biomarkers and that some other biomarkers
(such as BDNF, zonulin, telomere length, etc.) that may be associated with these may be
adversely affected in American football players. It is necessary to develop new approaches to
determine the preventive factors against the risk of neurodegenerative diseases that may
occur in the later years of life due to contact sports such as American football. The
Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet has antioxidant
(vitamins, flavonoids, phytosterols, minerals, terpenes and phenols) and anti-inflammatory
(oleic acid, polyphenols and unsaturated fatty acids) properties that are thought to be
effective in improving oxidative stress, inflammation and neurodegenerative risk biomarkers.
The MIND diet can also reduce intestinal permeability with its abundant fiber content
(prebiotic effect). It has been reported that the supplementation of some nutrients
(docosahexaenoic acid, eicosapentaenoic acid, etc.) that have an important place in the
composition of the MIND diet in this group of athletes has a positive effect on some of these
biomarkers. However, the studies in the literature are limited, and there is no study
involving the MIND diet in American football players. This study was planned considering that
the MIND diet may have positive effects on oxidative stress, inflammation, and
neurodegenerative risk biomarkers in American football players, who are exposed to repetitive
head impacts as a nature of this contact sport.
American football players playing in the pro league will be included in this study. The
sample size was calculated using the G*Power V. 3.1.9.6 program. This study will include two
groups and two measurements. Accordingly, a total of 30 athletes, 15 in each group, with 95%
confidence (1-α), 95% test power (1-β) and f=0.6 effect size; with 80% confidence (1-α), 80%
test power (1-β) and f=0.6 effect size, a total of 20 athletes, 10 in each group, should be
included.
At the beginning of the research, a face-to-face questionnaire will be used to question the
athletes' American football history and player positions, socio-demographics, general health
and nutritional habits. Before the start of the study, a 7-day food consumption record will
be taken from the athletes. MIND scores will be questioned before the study and every week
till the end of the study according to the frequency of food consumption in the MIND
composition scale. It will be used to assess participants' adherence to the MIND diet.
Accordingly, the MIND diet components include ten food groups (green leafy vegetables, other
vegetables, nuts, berries, bean types, whole grains, seafood, poultry, olive oil, and wine)
that are healthy for the brain. There are also five food groups (red meat, butter and
margarine, cheese, pastries and sweets and fried / fast food / fast food) that are considered
unhealthy. Frequencies of food consumption (daily, weekly, monthly) are questioned according
to whether these 10 food groups specified in the template are preferred based on portion and
meal or as primary, and as a result, scoring is made as 0, 0.5 and 1 points for each food
group. The highest score is 15 points. Because the MIND diet template does not have specific
scores for diet adherence, below the median score (7.5) will be considered low adherence.
According to the MIND diet composition scale, those with a MIND diet score of <7.5 points
will be included in the study, while those with a score of ≥7.5 will be excluded from the
study. At the beginning of the study, body composition measurements (anthropometric
measurements and bioelectrical impedance analysis) will be taken from the athletes along with
the Pittsburgh sleep quality index scale scores, diet inflammatory index, and the World
Health Organization quality of life scale-short form. Oxidative stress, inflammation,
neurodegenerative risk and other associated biomarkers will be analyzed in blood samples.
Athletes will be randomized into two groups; MIND diet and control group. The players in the
control group will sustain their habitual nutrition, while the current nutrition of the
players in the MIND diet group will be adapted to the MIND diet according to the food groups
in the MIND diet components and their consumption frequencies. In this context, the players
will be informed about the general characteristics of the MIND diet and its importance in
terms of their health. To help the participants in this regard, information will be given
about the changes in the size and amount of foods and their portions in general with the
"Meal and Food Photo Catalogue". As a result of the interviews with the coaches and
experienced players, it was learned that the majority of the players did not consume/can't
access the foods such as wine, berries, and fish included in the MIND diet template.
Therefore, these foods, which are the main components of the MIND diet, will be provided by
the researcher/project by the recommended frequencies. However, since wine consumption is not
frequently preferred in our country due to religious and socio-cultural reasons,
''hardaliye'' (100 mL/day), which is easy to consume and has similar nutritional values to
wine (resveratrol and ORAC), will be provided. Red forest fruits will be supplied in 2
portions/week, and fish (tons) in 1 portion/week. Before the study, participants assigned to
the MIND diet group were provided with brochures, information, presentations, etc. so that
they could adapt to the MIND diet. Participants in this group will be supported during the
study period to increase their adherence to the MIND diet with information and suggestions
via phone, mail, WhatsApp groups, etc. Those in the MIND diet group with an overall mean MIND
score of <7.5 at mid- or end-of-study will be excluded from the study. Athletes in the
control group with an overall mean MIND score of ≥7.5 at the mid- or end-of-study will be
excluded from the study. Since all teams will participate in the same number of competitions
and the group matches will last approximately nine weeks, the follow-up time has been
determined as nine weeks. At the end of the nine-week follow-up, all parameters evaluated at
the beginning of the study will be taken again, and the last values will be compared with the
previous values.
