Results 91 to 100 of about 796,839 (263)

Effects of Caffeine on Maximum Bench Press Repetitions [PDF]

, 2011
The purpose of this research is to study the effects of caffeine on the maximum amount bench press repetitions performed. Blood pressure and heart rate will also be measured. This research is important because of the popular use of caffeine among college
Soller, Alex
core   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

Carbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang, Chunxu Xue, Yutong Chen, Yujie Qiang, Seeram Ramakrishna   +4 more
wiley   +1 more source

Biosynthesis and Identification of Clenbuterol Metabolites in Urine and In Vitro Microsome Incubation Samples Using UHPLC‐Q‐Exactive Orbitrap Mass Spectrometry: A Comparison Between Human and Bovine Metabolism

Drug Testing and Analysis, EarlyView.
Clenbuterol metabolism was studied in bovine and human urine using LC‐Q‐Exactive‐Orbitrap MS; eight metabolites were identified in human and bovine samples as well as a novel N‐methylated form. Four urinary metabolites specific to cattle were detected and identified.
Anuar Gómez‐Tagle, Claudia Bressan, Rosa Ventura, Alan Álvarez‐Sanchez, Enrique Cardenas‐Yong, Benjamín Velasco‐Bejarano   +5 more
wiley   +1 more source

Vitamin D deficiency in student athletes in Thailand

, 2019
D. Buakwa, Nuttaset Manimmanakorn, Ratana Vichiansiri, Apiwan Manimmanakorn, Michael J. Hamlin   +4 more
openalex   +2 more sources

Identification of Candidate Blood Biomarkers of Recombinant Human Erythropoietin Administration Using Targeted Polar Metabolomics by HILIC‐MS/MS

Drug Testing and Analysis, EarlyView.
Using targeted HILIC‐MS/MS metabolomics, inosine and hypoxanthine were identified as potential biomarkers of EPO administration. Their consistent and sensitive plasma responses highlight their promise for inclusion in the Athlete Biological Passport (ABP), warranting further investigation to enhance anti‐doping detection strategies. ABSTRACT Increasing
Olivier Salamin, Lejla Ramic, Raul Nicoli, Serge Rudaz, Davy Guillarme, Tiia Kuuranne   +5 more
wiley   +1 more source

Water balance in Japanese male kendo college athletes during training: a pilot study assessing seasonal differences with adjusted energy expenditure

, 2022
Goichiro Yoshida, Akira TOKUMARU, Shigeki Maesaka, Kentaro Takenaka, Mika Shimokawa, Akiyo Higashionna, Takahide Matsumoto, Yutaka YOSHITAKE   +7 more
openalex   +1 more source

Detection of Anabolic Androgenic Steroids and Steroid Esters—Comparing Dried Blood Spots Collection Devices and Urine Samples

Drug Testing and Analysis, EarlyView.
DBS (Capitainer‐B50 and Tasso‐M20) enabled detection of testosterone esters in all participants, whereas urine testing (T/E) missed cases including potential UGT2B17 del/del carriers and individuals with testosterone prescription. More AAS and steroid‐esters could be detected in Capitainer‐B50 versus Tasso‐M20.
Tina Suominen, Jeanette von Walden, Laura Harju, Anton Pohanka, Jenny Schulze, Mikael Lehtihet, Lena Ekström   +6 more
wiley   +1 more source

Prevalence of AAS‐Positive Samples at Drug Abuse Laboratory Sweden Between 2014 and 2023 and Sub‐Study of Dual Use of AAS and Narcotics

Drug Testing and Analysis, EarlyView.
Throughout 2014–2023, over 20,000 AAS analyses have been conducted at the drug of abuse laboratory, Karolinska University Hospital. Approximately 20% and 2% of the samples have been positive for AAS, with no trends of increase or decrease. Around 50% of the AAS‐positive samples were also positive for narcotics (year 2022–2023), with gender differences;
Kim Petterson Bohlin, Tomas Villén, Oscar Hopcraft, Anton Pohanka, Lena Ekström   +4 more
wiley   +1 more source

CERA Detection and Stability in Blood Versus Urine

Drug Testing and Analysis, EarlyView.
This study presents comparative data on CERA detection in serum and urine samples, highlighting adverse analytical findings (AAFs) in serum that were undetected in corresponding urine samples. This shift would significantly improve the efficiency and sensitivity of CERA detection in doping control, ensuring more effective doping control programs ...
Olivier Salamin, Joséphine Chappuis, Lasse V. Bækken, Tiia Kuuranne, Nicolas Leuenberger   +4 more
wiley   +1 more source

The Effect of Neurofeedback on the Reaction Time and Cognitive Performance of Athletes: A Systematic Review and Meta-Analysis [PDF]

, 2022
Michele Andrade de Brito, José Raimundo Fernandes, Natã Sant'Anna Esteves, Vanessa Teixeira Müller, Daniella Brito Alexandria, Diego Ignácio Valenzuela Pérez, Maamer Slimani, Ciro José Brito, Nicola Luigi Bragazzi, Bianca Miarka   +9 more
openalex   +1 more source