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Psychological changes in athletes infected with Omicron after return to training: fatigue, sleep, and mood [PDF]

open access: yesPeerJ, 2023
Background This study aims to analyze the changes of approximately 1 month in fatigue, sleep, and mood in athletes after returning to training following infection with the COVID-19 Omicron strain and provide recommendations for returning to training ...
Chenhao Tan   +8 more
doaj   +2 more sources

Comparative Analysis of the Influence of Coaches' Beliefs on the Attitude of Athletes to the Use of Prohibited Substances

open access: yesBanber Erevani Hamalsarani. Sots'iologia, 2023
This study focuses on the beliefs and attitudes towards doping of Coaches and Athletes in Armenia, Georgia and Moldova, and on the similarities and differences between Armenia, Georgia and Moldova on these measures.
Areg Hovhannisyan   +5 more
doaj   +1 more source

Stable Isotope Labeling-Based Nontargeted Strategy for Characterization of the In Vitro Metabolic Profile of a Novel Doping BPC-157 in Doping Control by UHPLC-HRMS

open access: yesMolecules, 2023
Traditional strategies for the metabolic profiling of doping are limited by the unpredictable metabolic pathways and the numerous proportions of background and chemical noise that lead to inadequate metabolism knowledge, thereby affecting the selection ...
Tian Tian   +5 more
doaj   +1 more source

Chronotype characteristics of professional athletes in China: a comprehensive descriptive study

open access: yesJournal of Physiological Anthropology, 2023
Background Chronotype has gained recognition as a significant factor in enhancing athletic performance. This study aimed to deepen our understanding of athletes’ sleep chronotypes and provide a foundation for developing evidence-based training and ...
Chenhao Tan   +6 more
doaj   +1 more source

Untargeted Metabolomics Identifies a Novel Panel of Markers for Autologous Blood Transfusion

open access: yesMetabolites, 2022
Untargeted metabolomics was used to analyze serum and urine samples for biomarkers of autologous blood transfusion (ABT). Red blood cell concentrates from donated blood were stored for 35–36 days prior to reinfusion into the donors.
Amna Al-Nesf   +12 more
doaj   +1 more source

Development and validation of a method for analyzing the sialylated glycopeptides of recombinant erythropoietin in urine using LC–HRMS

open access: yesScientific Reports, 2023
Erythropoietin (EPO) is a glycoprotein hormone that stimulates red blood cell production. It is produced naturally in the body and is used to treat patients with anemia.
Yoondam Seo   +7 more
doaj   +1 more source

Reliability and validity of the Chinese version of the Athens insomnia scale for non-clinical application in Chinese athletes

open access: yesFrontiers in Psychology, 2023
PurposeThis study aimed to revise and examine the reliability and validity of the Chinese version of the Athens Insomnia Scale for Non-clinical Application (AIS-NCA) among Chinese athletes.
Chenhao Tan   +6 more
doaj   +1 more source

Variation of Sequential Ligandrol (LGD-4033) Metabolite Levels in Routine Anti-Doping Urine Samples Detected with or without Other Xenobiotics

open access: yesMolecules, 2023
Ligandrol, also known as LGD-4033, belongs to the group of selective androgen receptor modulators (SARMs). Ligandrol was first included in the WADA Prohibited List in 2018.
Dorota Kwiatkowska   +5 more
doaj   +1 more source

Doping in competition or doping in sport? [PDF]

open access: yesBritish Medical Bulletin, 2008
Since ancient times, competitive athletes have been familiar with the use of ergogenic aids and they will probably continue to use unfair and harmful substances in future, because their inclination to victory, along with the mirage of glory and money, will probably overcome health and legal risks.We searched PubMed using the term doping over the period
LIPPI, Giuseppe   +2 more
openaire   +3 more sources

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