Valdemar Stajer
Novi Sad, VO, Serbia
Last Updated: 09/26/2026
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Found 64 publications
Comparative Effects of Guanidinoacetic Acid and Creatine on Body Composition, Muscle Strength, and Protein Metabolism Biomarkers in Older Adults: A Randomized Exploratory Pilot Trial.
Journal: Journal of nutritional science and vitaminology
Published: August 30, 2026
The effects of 8-week creatine supplementation with and without ubiquinol on sperm quality biomarkers in normospermic and oligospermic men: A randomized controlled pilot trial.
Journal: Nutrition and health
Published: October 06, 2025
The Effects of 8-Week Creatine Hydrochloride and Creatine Ethyl Ester Supplementation on Cognition, Clinical Outcomes, and Brain Creatine Levels in Perimenopausal and Menopausal Women (CONCRET-MENOPA): A Randomized Controlled Trial.
Journal: Journal of the American Nutrition Association
Published: August 25, 2025
The effects of drinking hydrogen-rich water for six weeks on exercise-related biomarkers in exercise-naïve men and women over 50 years following resistance training program: a randomized controlled pilot trial.
Journal: Research in sports medicine (Print)
Published: June 17, 2025
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.
Journal: European journal of nutrition
Published: February 01, 2025
Exercise affects salivary biomarkers of creatine metabolism in healthy adults.
Journal: Sports medicine and health science
Published: January 08, 2025
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.
Journal: European journal of nutrition
Published: July 06, 2024
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.
Journal: Journal of nutrition and metabolism
Published: May 27, 2024
Eight-Week Creatine-Glucose Supplementation Alleviates Clinical Features of Long COVID.
Journal: Journal of nutritional science and vitaminology
Published: April 29, 2024
Post-marketing surveilance study of creatine-guanidinoacetic acid safety in healthy adults.
Journal: Frontiers in nutrition
Published: April 08, 2024
The impact of six-week dihydrogen-pyrroloquinoline quinone supplementation on mitochondrial biomarkers, brain metabolism, and cognition in elderly individuals with mild cognitive impairment: a randomized controlled trial.
Journal: The journal of nutrition, health & aging
Published: March 13, 2024
Optimizing strength training protocols in young females: A comparative study of velocity-based and percentage-based training programs.
Journal: Heliyon
Published: January 13, 2024
Last Updated: 09/26/2026