Results 21 to 30 of about 1,587,985 (297)

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

Determination of Ecdysterone in Dietary Supplements and Spinach by Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry

open access: yesSeparations, 2021
Ecdysterone is a naturally occurring steroid hormone of the ecdysteroid class. This group is widely marketed to athletes in dietary supplements as a “natural anabolic agent”, advertised to increase strength and muscle mass during resistance training ...
Krzysztof Grucza   +3 more
doaj   +1 more source

Relationship between sleep quality, mood state, and performance of elite air-rifle shooters

open access: yesBMC Sports Science, Medicine and Rehabilitation, 2022
Background To evaluate the impact of pre-competition sleep quality on the mood and performance of elite air-rifle shooters. Methods Elite shooters who participated in an air-rifle shooting-competition from April 2019 to October 2019 were evaluated using ...
Jiaojiao Lu, Yan An, Jun Qiu
doaj   +1 more source

Derivatization-Enhanced Analysis of Glucocorticoids for Structural Characterization by Gas Chromatography-Orbitrap High-Resolution Mass Spectrometry

open access: yesMolecules, 2023
Glucocorticoids are classified in section S9 of the Prohibited List of the World Anti-Doping Agency, due to a potential risk to improving physical performance and causing harm to the health of athletes.
Yuqi Ge   +3 more
doaj   +1 more source

Anti-doping analysis [PDF]

open access: yesAnalytical and Bioanalytical Chemistry, 2011
Sports drug testing has become a complex discipline facing numerous challenges, for example, the detection of prohibited drugs, the identification of prohibited methods, the discovery of manipulation, the assessment of analyte stability, etc. Because of the great variety of potential doping practices, doping-control laboratories utilize a broad ...
openaire   +2 more sources

Athlete support personnel and anti-doping: knowledge, attitudes, and ethical stance [PDF]

open access: yes, 2014
Athlete support personnel (ASP) failing to meet responsibilities under the World Anti-Doping Code risk sanction. It is unclear whether the poor knowledge of responsibilities seen in sports physicians and coaches applies to other ASP (e.g., administrators,
Mazanov, J   +9 more
core   +1 more source

Risk and enabling environments in sport: Systematic doping as harm reduction [PDF]

open access: yes, 2021
Doping and the use of performance enhancing drugs (PEDs) are often considered and discussed as a separate issue from other types of substance use, by sporting bodies, politicians, the media, and athletes who use drugs themselves. However, perceptions and
Andreasson, Jesper   +8 more
core   +1 more source

Precipitating or prohibiting factor: Coaches’ perceptions of their role and actions in anti-doping [PDF]

open access: yes, 2017
Coaches are frequently cited as potentially precipitating or preventing athletes’ engagement in doping. However, little is known about coaches’ perspectives.
Rhiannon Morris   +7 more
core   +1 more source

Quantitative determination of major nandrolone metabolite in human urine by gas chromatography/mass spectrometry

open access: yesЖурнал Белорусского государственного университета: Химия, 2019
Nandrolone is an anabolic androgenic steroid. The use of this substance is prohibited by World Anti-Doping Agency (WADA). In National Anti-Doping Laboratory, we have developed method for quantitative determination of major nandrolone metabolite – 19 ...
Pavel G. Shahoika   +5 more
doaj   +1 more source

Generic Pharmaceuticals as a Source of Diuretic Contamination in Athletes Subject to Sport Drug Testing

open access: yesFrontiers in Sports and Active Living, 2021
This paper describes nine instances of positive anti-doping tests that could be accounted for by the use of permitted generic prescription drugs contaminated with diuretics, which are prohibited in sport at all times under the WADA Prohibited List.
Amy Eichner   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy