Works by Stajer, Valdemar

Results: 63

Food Creatine and DXA-Derived Body Composition in Boys and Girls Aged 8 to 19 Years.

Published in:

Nutrition & Metabolic Insights, 2021, p. 1, doi. 10.1177/11786388211059368

By:

Korovljev, Darinka;
Todorovic, Nikola;
Stajer, Valdemar;
Ostojic, Sergej M

Publication type:

Article

Food Creatine and DXA-Derived Body Composition in Boys and Girls Aged 8 to 19 Years.

Published in:

Nutrition & Metabolic Insights, 2021, p. 1, doi. 10.1177/11786388211059368

By:

Korovljev, Darinka;
Todorovic, Nikola;
Stajer, Valdemar;
Ostojic, Sergej M

Publication type:

Article

Correlation between Serum FGF21 and Cognition in Men and Women Over 60 Years of Age.

Published in:

International Journal of Gerontology, 2021, v. 15, n. 1, p. 30, doi. 10.6890/IJGE.202101_15(1).0006

By:

Zanini, Dragana;
Seper, Vesna;
Javorac, Dejan;
Stajer, Valdemar;
Cvetkovic, Milan;
Batez, Maja;
Scepanovic, Tijana;
Korovljev, Darinka;
Vasic, Goran;
Maksimovic, Nebojsa;
Ostojic, Sergej M.

Publication type:

Article

Short-Term H<sub>2</sub> Inhalation Improves Cognitive Function in Older Women: A Pilot Study.

Published in:

International Journal of Gerontology, 2020, v. 14, n. 2, p. 149, doi. 10.6890/IJGE.202005_14(2).0013

By:

Korovljev, Darinka;
Trivic, Tatjana;
Štajer, Valdemar;
Drid, Patrik;
Sato, Bunpei;
Ostojic, Sergej

Publication type:

Article

Post-marketing surveilance study of creatine-guanidinoacetic acid safety in healthy adults.

Published in:

Frontiers in Nutrition, 2024, p. 01, doi. 10.3389/fnut.2024.1414308

By:

Ranisavljev, Marijana;
Todorovic, Nikola;
Stajer, Valdemar;
Ostojic, Sergej M.

Publication type:

Article

Serum creatine is not a reliable marker of muscular fitness in young adults.

Published in:

Biomarkers, 2018, v. 23, n. 5, p. 422, doi. 10.1080/1354750X.2018.1438514

By:

Stajer, Valdemar;
Vranes, Milan;
Kocic, Vladan;
Ostojic, Sergej M.

Publication type:

Article

A single session of exhaustive exercise markedly decreases circulating levels of guanidinoacetic acid in healthy men and women.

Published in:

Applied Physiology, Nutrition & Metabolism, 2016, v. 41, n. 10, p. 1100, doi. 10.1139/apnm-2016-0102

By:

Stajer, Valdemar;
Trivic, Tatjana;
Drid, Patrik;
Vranes, Milan;
Ostojic, Sergej M.

Publication type:

Article

Short-term H<sub>2</sub> inhalation improves running performance and torso strength in healthy adults.

Published in:

Biology of Sport, 2019, v. 36, n. 4, p. 333, doi. 10.5114/biolsport.2019.88756

By:

Javorac, Dejan;
Stajer, Valdemar;
Ratgeber, Laszlo;
Betlehem, Jozsef;
Ostojic, Sergej

Publication type:

Article

Hydrogen-rich water alleviates inflammation and fatigue in COVID-19: A pilot study.

Published in:

2022

By:

Milovancev, Aleksandra;
Avakumovic, Jovana;
Drid, Patrik;
Todorovic, Nikola;
Stajer, Valdemar;
Ostojic, Sergej M

Publication type:

Letter

Hydrogen-rich water alleviates inflammation and fatigue in COVID-19: A pilot study.

Published in:

European Journal of Inflammation, 2022, v. 20, p. 1, doi. 10.1177/1721727X221094197

By:

Milovancev, Aleksandra;
Avakumovic, Jovana;
Drid, Patrik;
Todorovic, Nikola;
Stajer, Valdemar;
Ostojic, Sergej M.

Publication type:

Article

A single-dose nitrate-producing dietary supplement affects cardiorespiratory endurance and muscular fitness in healthy men: A randomized controlled pilot trial.

Published in:

SAGE Open Medicine, 2021, v. 9, p. 1, doi. 10.1177/20503121211036119

By:

Todorovic, Nikola;
Stajer, Valdemar;
Ratgeber, Laszlo;
Betlehem, Jozsef;
Acs, Pongrac;
Maksimovic, Nebojsa;
Ostojic, Sergej M

Publication type:

Article

A single-dose nitrate-producing dietary supplement affects cardiorespiratory endurance and muscular fitness in healthy men: A randomized controlled pilot trial.

Published in:

SAGE Open Medicine, 2021, v. 9, p. 1, doi. 10.1177/20503121211036119

By:

Todorovic, Nikola;
Stajer, Valdemar;
Ratgeber, Laszlo;
Betlehem, Jozsef;
Acs, Pongrac;
Maksimovic, Nebojsa;
Ostojic, Sergej M

Publication type:

Article

Motivation Profile of Youth Greco-Roman Wrestlers; Differences According to Performance Quality.

Published in:

Sports (2075-4663), 2023, v. 11, n. 2, p. 43, doi. 10.3390/sports11020043

By:

Skugor, Kreso;
Gilic, Barbara;
Mladenovic, Marijana;
Stajer, Valdemar;
Roklicer, Roberto;
Slacanac, Kristijan;
Bagaric, Domagoj;
Karnincic, Hrvoje

Publication type:

Article

Patterns of rapid weight loss in elite sambo athletes.

Published in:

BMC Sports Science, Medicine & Rehabilitation, 2021, v. 13, n. 1, p. 1, doi. 10.1186/s13102-021-00267-3

By:

Drid, Patrik;
Figlioli, Flavia;
Lakicevic, Nemanja;
Gentile, Ambra;
Stajer, Valdemar;
Raskovic, Bojan;
Vojvodic, Nina;
Roklicer, Roberto;
Trivic, Tatjana;
Tabakov, Sergey;
Eliseev, Sergey;
Bianco, Antonino

Publication type:

Article

MORPHOLOGICAL CHARACTERISTICS OF YOUNGER SCHOOL AGE GIRLS DEFFERENT PHISICAL INVOLVEMENT.

Published in:

Research in Physical Education, Sport & Health, 2014, v. 3, n. 2, p. 99

By:

Popović, Boris;
Madić, Dejan;
Spasić, Aleksandra;
Radanović, Danilo;
Štajer, Valdemar;
Aleksić-Veljković, Aleksandra

Publication type:

Article

MORPHOLOGICAL CHARACTERISTICS OF YOUNGER SCHOOL AGE GIRLS DEFFERENT PHISICAL INVOLVEMENT.

Published in:

Research in Physical Education, Sport & Health, 2014, v. 3, n. 1, p. 73

By:

Popović, Boris;
Madić, Dejan;
Spasić, Aleksandra;
Radanović, Danilo;
Štajer, Valdemar;
Aleksić-Veljković, Aleksandra

Publication type:

Article

Effects of six‐month creatine supplementation on patient‐ and clinician‐reported outcomes, and tissue creatine levels in patients with post‐COVID‐19 fatigue syndrome.

Published in:

Food Science & Nutrition, 2023, v. 11, n. 11, p. 6899, doi. 10.1002/fsn3.3597

By:

Slankamenac, Jelena;
Ranisavljev, Marijana;
Todorovic, Nikola;
Ostojic, Jelena;
Stajer, Valdemar;
Ostojic, Sergej M.

Publication type:

Article

Creatine consumption and liver disease manifestations in individuals aged 12 years and over.

Published in:

Food Science & Nutrition, 2023, v. 11, n. 2, p. 1134, doi. 10.1002/fsn3.3151

By:

Todorovic, Nikola;
Korovljev, Darinka;
Stajer, Valdemar;
Jorga, Jagoda;
Ostojic, Sergej M.

Publication type:

Article

Dietary intake of creatine and risk of medical conditions in U.S. older men and women: Data from the 2017–2018 National Health and Nutrition Examination Survey.

Published in:

Food Science & Nutrition, 2021, v. 9, n. 10, p. 5746, doi. 10.1002/fsn3.2543

By:

Ostojic, Sergej M.;
Korovljev, Darinka;
Stajer, Valdemar

Publication type:

Article

Hydrogen‐rich water and caffeine for alertness and brain metabolism in sleep‐deprived habitual coffee drinkers.

Published in:

Food Science & Nutrition, 2021, v. 9, n. 9, p. 5139, doi. 10.1002/fsn3.2480

By:

Todorovic, Nikola;
Zanini, Dragana;
Stajer, Valdemar;
Korovljev, Darinka;
Ostojic, Jelena;
Ostojic, Sergej M.

Publication type:

Article

Searching for a better formulation to enhance muscle bioenergetics: A randomized controlled trial of creatine nitrate plus creatinine vs. creatine nitrate vs. creatine monohydrate in healthy men.

Published in:

Food Science & Nutrition, 2019, v. 7, n. 11, p. 3766, doi. 10.1002/fsn3.1237

By:

Ostojic, Sergej M.;
Stajer, Valdemar;
Vranes, Milan;
Ostojic, Jelena

Publication type:

Article

The Applicability of Provocative Functional Tests in the Diagnosis of Rotator Cuff Muscle Injuries of the Best University Athletes.

Published in:

BioMed Research International, 2022, p. 1, doi. 10.1155/2022/7728277

By:

Ujsasi, Darijan;
Filipović, Karmela;
Zvekić-Svorcan, Jelena;
Nemet, Marko;
Đuričin, Aleksandar;
Jokšić-Mazinjanin, Radojka;
Pavlović, Slobodan;
Jovanović, Saša;
Popović, Boris;
Štajer, Valdemar;
Radanović, Danilo;
Marinković, Dragan;
Cvetković, Milan

Publication type:

Article

Serum GAA as a Possible Biomarker of Exhaustive Exercise?

Published in:

Frontiers in Physiology, 2019, v. 10, p. 1, doi. 10.3389/fphys.2019.01506

By:

Ostojic, Sergej M.;
Stajer, Valdemar;
Ratgeber, Laszlo;
Betlehem, Jozsef;
Acs, Pongras;
Olah, Andras

Publication type:

Article

Guanidinoacetate–creatine in secondary progressive multiple sclerosis: a case report.

Published in:

Journal of International Medical Research, 2022, v. 50, n. 1, p. 1, doi. 10.1177/03000605211073305

By:

Ostojic, Sergej M.;
Ostojic, Jelena;
Zanini, Dragana;
Jezdimirovic, Tatjana;
Stajer, Valdemar

Publication type:

Article

The effects of rapid weight loss on skeletal muscle in judo athletes.

Published in:

2020

By:

Roklicer, Roberto;
Lakicevic, Nemanja;
Stajer, Valdemar;
Trivic, Tatjana;
Bianco, Antonino;
Mani, Diba;
Milosevic, Zoran;
Maksimovic, Nebojsa;
Paoli, Antonio;
Drid, Patrik

Publication type:

journal article

Correction: The effects of 3-month supplementation with synbiotic on patient-reported outcomes, exercise tolerance, and brain and muscle metabolism in adult patients with post-COVID-19 chronic fatigue syndrome (STOP-FATIGUE): a randomized Placebo-controlled clinical trial.

Published in:

2025

By:

Ranisavljev, Marijana;
Stajer, Valdemar;
Todorovic, Nikola;
Ostojic, Jelena;
Cvejic, Jelena Helena;
Steinert, Robert E.;
Ostojic, Sergej M.

Publication type:

Correction Notice

The effects of 3-month supplementation with synbiotic on patient-reported outcomes, exercise tolerance, and brain and muscle metabolism in adult patients with post-COVID-19 chronic fatigue syndrome (STOP-FATIGUE): a randomized Placebo-controlled clinical trial.

Published in:

European Journal of Nutrition, 2025, v. 64, n. 1, p. 1, doi. 10.1007/s00394-024-03546-0

By:

Ranisavljev, Marijana;
Stajer, Valdemar;
Todorovic, Nikola;
Ostojic, Jelena;
Cvejic, Jelena Helena;
Steinert, Robert E.;
Ostojic, Sergej M.

Publication type:

Article

PATTERNS OF RAPID WEIGHT LOSS IN ELITE SAMBO ATHLETES.

Published in:

Journal of Biological Research / Bollettino della Società Italiana di Biologia Sperimentale, 2021, v. 94, p. 33

By:

DRID, Patrik;
FIGLIOLI, Flavia;
LAKICEVIC, Nemanja;
GENTILE, Ambra;
STAJER, Valdemar;
RASKOVIC, Bojan;
VOJVODIC, Nina;
ROKLICER, Roberto;
TRIVIC, Tatjana;
TABAKOV, Sergey;
ELISEEV, Sergey;
BIANCO, Antonino

Publication type:

Article

The Impact of Short‐Term Supplementation With Guanidinoacetic Acid and Creatine Versus Creatine Alone on Body Composition Indices in Healthy Men and Women: Creatine‐Guanidinoacetic Acid Affects Body Composition.

Published in:

Journal of Nutrition & Metabolism, 2024, v. 2024, p. 1, doi. 10.1155/2024/7815807

By:

Baltic, Sonja;
Nedeljkovic, David;
Todorovic, Nikola;
Ratgeber, Laszlo;
Betlehem, Jozsef;
Acs, Pongrac;
Stajer, Valdemar;
Ostojic, Sergej M.;
Gumpricht, Eric

Publication type:

Article

Guanidinoacetic Acid Consumption via Regular Diet in Adults.

Published in:

2022

By:

Ostojic, Sergej M.;
Stajer, Valdemar;
Ratgeber, Laszlo;
Betlehem, Jozsef;
Acs, Pongrac

Publication type:

Letter to the Editor

Effect of Creatine and Guanidinoacetate Supplementation on Plasma Homocysteine in Metabolically Healthy Men and Women.

Published in:

Annals of Nutrition & Metabolism, 2021, v. 77, n. 5, p. 307, doi. 10.1159/000518126

By:

Ostojic, Sergej M.;
Todorovic, Nikola;
Stajer, Valdemar

Publication type:

Article

Guanidinoacetate-Creatine Supplementation Improves Functional Performance and Muscle and Brain Bioenergetics in the Elderly: A Pilot Study.

Published in:

Annals of Nutrition & Metabolism, 2021, v. 77, n. 4, p. 244, doi. 10.1159/000518499

By:

Seper, Vesna;
Korovljev, Darinka;
Todorovic, Nikola;
Stajer, Valdemar;
Ostojic, Jelena;
Nesic, Nebojsa;
Ostojic, Sergej M.

Publication type:

Article

Dietary Intake of Creatine in Children Aged 0–24 Months.

Published in:

Annals of Nutrition & Metabolism, 2021, v. 77, n. 3, p. 185, doi. 10.1159/000515917

By:

Korovljev, Darinka;
Todorovic, Nikola;
Stajer, Valdemar;
Ostojic, Sergej M.

Publication type:

Article

Effects of Guanidinoacetic Acid Loading on Biomarkers of Cardiometabolic Risk and Inflammation.

Published in:

2018

By:

Ostojic, Sergej M.;
Trivic, Tatjana;
Drid, Patrik;
Stajer, Valdemar;
Vranes, Milan

Publication type:

Letter to the Editor

Health and physical fitness profiling of working population: Sport4Health 2021.

Published in:

BMC Proceedings, 2021, v. 15, n. 6, p. 1, doi. 10.1186/s12919-021-00216-5

By:

Todorovic, Nikola;
Stajer, Valdemar;
Harrison, Bojana;
Korovljev, Darinka;
Maksimovic, Nebojsa;
van Heel, John;
Pintar, Damjan;
Ibric, Hasan;
Kralski, Milko;
Jukic, Igor;
Kekic, Sophie;
Ostojic, Sergej M.

Publication type:

Article

Advancing health-enhancing physical activity at workplace: Sport4Heath 2020 scientific forum.

Published in:

BMC Proceedings, 2020, v. 14, p. 1, doi. 10.1186/s12919-020-00196-y

By:

Todorovic, Nikola;
Stajer, Valdemar;
Harrison, Bojana;
Korovljev, Darinka;
Maksimovic, Neboja;
Ostojic, Sergej M.

Publication type:

Article

Does body fat percentage predict post-exercise heart rate response in non-obese children and adolescents?

Published in:

Journal of Pediatric Endocrinology & Metabolism, 2017, v. 30, n. 6, p. 629, doi. 10.1515/jpem-2016-0468

By:

Jezdimirovic, Tatjana;
Stajer, Valdemar;
Semeredi, Sasa;
Calleja-Gonzalez, Julio;
Ostojic, Sergej M.

Publication type:

Article

Principles of Rapid Weight Loss in Female Sambo Athletes.

Published in:

International Journal of Environmental Research & Public Health, 2021, v. 18, n. 21, p. 11356, doi. 10.3390/ijerph182111356

By:

Todorović, Nikola;
Ranisavljev, Marijana;
Tapavički, Borislav;
Zubnar, Andrea;
Kuzmanović, Jovan;
Štajer, Valdemar;
Sekulić, Damir;
Veršić, Šime;
Tabakov, Sergey;
Drid, Patrik

Publication type:

Article

Cardiorespiratory Fitness in Volleyball Athletes Following a COVID-19 Infection: A Cross-Sectional Study.

Published in:

International Journal of Environmental Research & Public Health, 2021, v. 18, n. 8, p. 4059, doi. 10.3390/ijerph18084059

By:

Milovancev, Aleksandra;
Avakumovic, Jovana;
Lakicevic, Nemanja;
Stajer, Valdemar;
Korovljev, Darinka;
Todorovic, Nikola;
Bianco, Antonino;
Maksimovic, Nebojsa;
Ostojic, Sergej;
Drid, Patrik

Publication type:

Article

What Determines the Competitive Success of Young Croatian Wrestlers: Anthropometric Indices, Generic or Specific Fitness Performance?

Published in:

Journal of Functional Morphology & Kinesiology, 2023, v. 8, n. 3, p. 90, doi. 10.3390/jfmk8030090

By:

Škugor, Krešo;
Gilić, Barbara;
Karninčić, Hrvoje;
Jokai, Matyas;
Babszky, Gergely;
Ranisavljev, Marijana;
Štajer, Valdemar;
Roklicer, Roberto;
Drid, Patrik

Publication type:

Article

The Effects of Hydrogen-Rich Water on Blood Lipid Profiles in Clinical Populations: A Systematic Review and Meta-Analysis.

Published in:

Pharmaceuticals (14248247), 2023, v. 16, n. 2, p. 142, doi. 10.3390/ph16020142

By:

Todorovic, Nikola;
Fernández-Landa, Julen;
Santibañez, Asier;
Kura, Branislav;
Stajer, Valdemar;
Korovljev, Darinka;
Ostojic, Sergej M.

Publication type:

Article

Sports event quality and athlete's behavioural intentions at the World Wrestling Championship.

Published in:

Management & Marketing, 2024, v. 19, n. 3, p. 419, doi. 10.2478/mmcks-2024-0019

By:

Matić, Radenko M.;
Todorović, Nikola;
Milovanović, Ivana M.;
Štajer, Valdemar;
Banjac, Brigita;
Popović, Stevo;
Manojlović, Marko

Publication type:

Article

Rapid Weight Loss Habits before a Competition in Sambo Athletes.

Published in:

Nutrients, 2021, v. 13, n. 4, p. 1063, doi. 10.3390/nu13041063

By:

Figlioli, Flavia;
Bianco, Antonino;
Thomas, Ewan;
Stajer, Valdemar;
Korovljev, Darinka;
Trivic, Tatjana;
Maksimovic, Nebojsa;
Drid, Patrik;
Saules, Karen K.

Publication type:

Article

Relationship between Dietary Creatine and Growth Indicators in Children and Adolescents Aged 2–19 Years: A Cross-Sectional Study.

Published in:

Nutrients, 2021, v. 13, n. 3, p. 1027, doi. 10.3390/nu13031027

By:

Korovljev, Darinka;
Stajer, Valdemar;
Ostojic, Sergej M.;
Nieman, David C.;
Kreider, Richard B.

Publication type:

Article

EFFECTS OF ACUTE B-ALANINE SUPPLEMENTATION ON COUNTERMOVEMENT JUMP PERFORMANCE AFTER A 4X400 M RUNNING FATIGUE PROTOCOL: A RANDOMIZED, DOUBLEBLIND, PLACEBO-CONTROLLED TRIAL.

Published in:

Kinesiology, 2022, v. 54, n. 2, p. 201, doi. 10.26582/k.54.2.1

By:

Todorovic, Nikola;
Santibañez-Gutierrez, Asier;
Milovanov, Djordje;
Stajer, Valdemar;
Ostojic, Sergej M.;
Ferna'ndez-Landa, Julen

Publication type:

Article

Hydrotherapy with hydrogen-rich water compared with RICE protocol following acute ankle sprain in professional athletes: a randomized non-inferiority pilot trial.

Published in:

Research in Sports Medicine, 2021, v. 29, n. 6, p. 517, doi. 10.1080/15438627.2020.1868468

By:

Javorac, Dejan;
Stajer, Valdemar;
Ratgeber, Laszlo;
Olah, Andras;
Betlehem, Jozsef;
Acs, Pongras;
Vukomanovic, Boris;
Ostojic, Sergej M.

Publication type:

Article

Correlation between biomarkers of creatine metabolism and serum indicators of peripheral muscle fatigue during exhaustive exercise in active men.

Published in:

Research in Sports Medicine, 2020, v. 28, n. 1, p. 147, doi. 10.1080/15438627.2018.1502185

By:

Stajer, Valdemar;
Vranes, Milan;
Ostojic, Sergej M.

Publication type:

Article

Generic and Specific Fitness Profile of Elite Youth Greco-Roman Wrestlers; Differences According to Quality and Weight Category.

Published in:

Sport Mont, 2023, v. 21, n. 1, p. 23, doi. 10.26773/smj.230204

By:

Skugor, Kreso;
Stajer, Valdemar;
Zugaj, Nenad;
Gilic, Barbara;
Karnincic, Hrvoje

Publication type:

Article

Differences in Motor Abilities of Younger School Children based on their Sex.

Published in:

Sport Mont, 2018, v. 16, n. 1, p. 25, doi. 10.26773/smj.180205

By:

Smajic, Miroslav;
Ivanov, Ana;
Cokorilo, Nebojsa;
Dimitric, Goran;
Stajer, Valdemar;
Tomic, Bogdan

Publication type:

Article

RAZLIKE IZMEĐU DEČAKA I DEVOJČICA UZRASTA 11-12 GODINA U USPEŠNOSTI USVAJANJA GIMNASTIČKIH VEŽBI.

Published in:

Sport Mont, 2013, v. 11, n. 37-39, p. 137

By:

Radanović, Danilo;
Štajer, Valdemar;
Popović, Boris;
Madić, Dejan

Publication type:

Article