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.
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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 as a double blinded randomized trial on a group of football players (mean age=15.8), who underwent 7 weeks of supplementation with 200 ml chokeberry juice per day. The players were randomly assigned to the experimental (supplemented, FP-S; n = 12) and control (placebo, FB-C; n = 8) groups. Before and after the supplementation period, participants performed an beep test . Venous blood was taken for serum isolation before, immediately after, 3 h, 24 h after the test Level of thiobarbituric acid reactive products (TBARS), hydroxy-2'-deoxyguanosine (8-OHdG), total antioxidant capacity (TAC), iron (Fe), hepcidin, ferritin, myoglobin, albumin and morphological parameters (RBC, HGB, HCT, MCV, MCH, MCHC and lactic acid) were measured.
Results: There were no significant impact of the supplementation intervention in response to the physical exercise test in the studied groups.. The post-hoc test showed no effect of chokeberry juice supply on any of the morphological, biochemical or performance parameters analysed.
Conclusions: The supplementation of Chokeberry juice shows no effects on measured parameters in studied populations. It may indicate Such results may indicate insufficient antioxidant capacity of the supplemented juice.
Keywords
total antioxidant capacity, radical oxygen species, exercise, diet supplement, football players
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CURRENT STATUS: Under Review
Version 2
Posted 09 Feb, 2021
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
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: ...
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A new preprint design is coming!
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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
Version 2
Posted 09 Feb, 2021
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
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
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 as a double blinded randomized trial on a group of football players (mean age=15.8), who underwent 7 weeks of supplementation with 200 ml chokeberry juice per day. The players were randomly assigned to the experimental (supplemented, FP-S; n = 12) and control (placebo, FB-C; n = 8) groups. Before and after the supplementation period, participants performed an beep test . Venous blood was taken for serum isolation before, immediately after, 3 h, 24 h after the test Level of thiobarbituric acid reactive products (TBARS), hydroxy-2'-deoxyguanosine (8-OHdG), total antioxidant capacity (TAC), iron (Fe), hepcidin, ferritin, myoglobin, albumin and morphological parameters (RBC, HGB, HCT, MCV, MCH, MCHC and lactic acid) were measured.
Results: There were no significant impact of the supplementation intervention in response to the physical exercise test in the studied groups.. The post-hoc test showed no effect of chokeberry juice supply on any of the morphological, biochemical or performance parameters analysed.
Conclusions: The supplementation of Chokeberry juice shows no effects on measured parameters in studied populations. It may indicate Such results may indicate insufficient antioxidant capacity of the supplemented juice.
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