This preprint is under consideration at Journal of the International Society of Sports Nutrition. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
Research article
Anna Skarpańska - Stejnborn
Faculty of Physical Culture in Gorzów Wlkp.
Corresponding Author
ORCiD: https://orcid.org/0000-0002-7795-3550
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
The intensive physical exercise in which athletes take part in competitive sports can negatively affect the pro-oxidative–antioxidant balance. The use of compounds with high antioxidant potential, which certainly should include chokeberry, can prevent these adverse changes.
Methods
The study was conducted on a group of football players aged 16–17 years, who underwent 7 weeks of supplementation with 200 ml chokeberry juice per day. Before and after supplementation, the participants performed an intensive physical exercise test (beep test). At rest, immediately after exercise and after 3 and 24 h of rest, venous blood was taken from the subjects, in which levels of thiobarbituric acid reactive products (TBARS), hydroxy-2'-deoxyguanosine (8-OHdG), total antioxidant capacity (TAC), iron (Fe), hepcidin, ferritin, myoglobin, albumin and morphological parameters were examined.
Results
There was a significant impact of the intervention in response to the physical exercise test in the studied groups on parameter dynamics: 8-OHdG (t = 3.56, p = 0.0005), albumin (t = 1.98, p = 0.049), TBARS (t = 4.33, p = 0.00003), hepcidin (t = 2.21, p = 0.03), and Mono level (t = 2.14, p = 0.04) and percentage (t = 2.27, p = 0.03). The post-hoc test showed no effect of chokeberry juice supply on any of the morphological, biochemical or performance parameters analysed.
Conclusions
The supplementation applied to footballers showed no effects under the influence of the applied exercise stress test. Such results may be the result of both the players’ adaptation to the applied exercise loads and the insufficient antioxidant capacity of the supplement used.
Keywords
total antioxidant capacity, radical oxygen species, exercise, diet supplement, football players
Loading...
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
The most recent version of this article is available here.
No community comments so far
Review #2 received
Received 25 Feb, 2021
Editorial decision: Minor revision
On 25 Feb, 2021
Review #1 received
Received 20 Feb, 2021
Reviewer #2 agreed
On 05 Feb, 2021
Reviewer #1 agreed
On 02 Feb, 2021
Reviewers invited
Invitations sent on 01 Feb, 2021
Editor assigned
On 01 Feb, 2021
Submission checks complete
On 01 Feb, 2021
Editor invited
On 01 Feb, 2021
Version 1
Posted 25 Jun, 2020
No comments provided
Editorial decision: Major revision
On 13 Nov, 2020
Review #2 received
Received 12 Nov, 2020
Reviewer #2 agreed
On 29 Sep, 2020
Review #1 received
Received 28 Sep, 2020
Reviewer #1 agreed
On 19 Aug, 2020
Reviewers invited
Invitations sent on 24 Jun, 2020
Editor assigned
On 22 Jun, 2020
Submission checks complete
On 21 Jun, 2020
Editor invited
On 21 Jun, 2020
First submitted
On 19 Jun, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Learn more about our company.
A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
This preprint is under consideration at Journal of the International Society of Sports Nutrition. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Anna Skarpańska - Stejnborn
Faculty of Physical Culture in Gorzów Wlkp.
Corresponding Author
ORCiD: https://orcid.org/0000-0002-7795-3550
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
The most recent version of this article is available here.
No community comments so far
Review #2 received
Received 25 Feb, 2021
Editorial decision: Minor revision
On 25 Feb, 2021
Review #1 received
Received 20 Feb, 2021
Reviewer #2 agreed
On 05 Feb, 2021
Reviewer #1 agreed
On 02 Feb, 2021
Reviewers invited
Invitations sent on 01 Feb, 2021
Editor assigned
On 01 Feb, 2021
Submission checks complete
On 01 Feb, 2021
Editor invited
On 01 Feb, 2021
Version 1
Posted 25 Jun, 2020
No comments provided
Editorial decision: Major revision
On 13 Nov, 2020
Review #2 received
Received 12 Nov, 2020
Reviewer #2 agreed
On 29 Sep, 2020
Review #1 received
Received 28 Sep, 2020
Reviewer #1 agreed
On 19 Aug, 2020
Reviewers invited
Invitations sent on 24 Jun, 2020
Editor assigned
On 22 Jun, 2020
Submission checks complete
On 21 Jun, 2020
Editor invited
On 21 Jun, 2020
First submitted
On 19 Jun, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The most recent version of this article is available here.
Background
The intensive physical exercise in which athletes take part in competitive sports can negatively affect the pro-oxidative–antioxidant balance. The use of compounds with high antioxidant potential, which certainly should include chokeberry, can prevent these adverse changes.
Methods
The study was conducted on a group of football players aged 16–17 years, who underwent 7 weeks of supplementation with 200 ml chokeberry juice per day. Before and after supplementation, the participants performed an intensive physical exercise test (beep test). At rest, immediately after exercise and after 3 and 24 h of rest, venous blood was taken from the subjects, in which levels of thiobarbituric acid reactive products (TBARS), hydroxy-2'-deoxyguanosine (8-OHdG), total antioxidant capacity (TAC), iron (Fe), hepcidin, ferritin, myoglobin, albumin and morphological parameters were examined.
Results
There was a significant impact of the intervention in response to the physical exercise test in the studied groups on parameter dynamics: 8-OHdG (t = 3.56, p = 0.0005), albumin (t = 1.98, p = 0.049), TBARS (t = 4.33, p = 0.00003), hepcidin (t = 2.21, p = 0.03), and Mono level (t = 2.14, p = 0.04) and percentage (t = 2.27, p = 0.03). The post-hoc test showed no effect of chokeberry juice supply on any of the morphological, biochemical or performance parameters analysed.
Conclusions
The supplementation applied to footballers showed no effects under the influence of the applied exercise stress test. Such results may be the result of both the players’ adaptation to the applied exercise loads and the insufficient antioxidant capacity of the supplement used.
Loading...