Science & Mechanisms

How creatine works at the molecular level. ATP resynthesis, phosphocreatine, cell volumization, and more. 20 articles.

• Creatine and ATP Resynthesis: The 10-Second Energy Window — Quantitative analysis of creatine's role in ATP resynthesis: turnover rates, phosphocreatine contribution during maximal effort, the 10-second window,...
• Creatine and Brain Function: The Cognitive Benefits of Supplementation — Review of creatine's effects on brain function and cognition. Evidence on cognitive performance under stress and sleep deprivation, neuroprotective...
• Creatine and Cell Volumization: The Water Retention Question Explained — Scientific explanation of creatine-induced cell volumization. Covers intracellular vs extracellular water distribution, osmotic mechanisms, cell swelling as...
• Creatine and Glycogen Supercompensation: The Dual Fuel System — Research analysis of how creatine supplementation enhances muscle glycogen storage, the effects of carbohydrate co-ingestion, and practical implications for...
• Creatine and Mitochondrial Function: The Energy Shuttle Hypothesis — In-depth analysis of the phosphocreatine shuttle between mitochondria and myofibrils, mitochondrial creatine kinase function, and the implications of...
• Creatine and Muscle Growth: What the Research Actually Shows — Comprehensive review of creatine's effects on lean mass and muscle hypertrophy. Meta-analytic data on effect sizes, mechanisms including cell...
• Creatine and Recovery: How It Reduces Muscle Damage and Inflammation — Evidence review of creatine's effects on exercise recovery. Analysis of muscle damage markers (CK, LDH), inflammatory cytokines, glycogen replenishment,...
• Creatine and Strength: Systematic Review of Performance Outcomes — Systematic review of creatine's effects on muscular strength. Analysis of 1RM improvements, upper vs lower body gains, trained vs untrained populations,...
• Creatine and Testosterone: What the Studies Actually Measured — Examining the evidence linking creatine supplementation to testosterone and DHT levels. Detailed analysis of the van der Merwe 2009 study, its limitations,...
• Creatine for Aging Adults: Sarcopenia, Bone Density, and Cognitive Decline — Research on creatine supplementation in older adults. Evidence for combating sarcopenia, preserving bone mineral density, supporting cognitive function, and...
• Creatine for Endurance Athletes: When It Helps and When It Doesn't — Analysis of creatine supplementation for endurance performance. Evidence on energy system contributions, high-intensity intervals within endurance events,...
• Creatine for Women: Hormonal Considerations and Research Gaps — Evidence on creatine supplementation in women. Sex-based differences in creatine metabolism, menstrual cycle interactions, pregnancy research,...
• How Creatine Works: ATP, Phosphocreatine, and Energy Production — A detailed explanation of how creatine functions in the body through the creatine kinase system, phosphocreatine shuttle, and ATP resynthesis. Fully cited...
• How Your Body Makes Creatine: Endogenous Synthesis from Arginine, Glycine, and Methionine — Detailed explanation of endogenous creatine synthesis. The AGAT and GAMT enzymes, the kidney-liver axis, synthesis rate of approximately 1 g/day, dietary...
• Muscle Creatine Saturation: How Your Body Stores and Uses Creatine — Research-grade analysis of muscle creatine saturation: baseline stores, upper storage limits, loading vs. slow supplementation, individual variation, and...
• The Complete Guide to Creatine Mechanisms: A Research Summary — Comprehensive research summary of all known creatine mechanisms including ATP resynthesis, cell volumization, satellite cell activation, protein synthesis,...
• The Creatine Transporter (SLC6A8): How Creatine Gets Into Muscle Cells — Detailed examination of the SLC6A8 creatine transporter, its sodium and chloride dependence, tissue distribution, downregulation mechanisms, and the role of...
• The History of Creatine Research: From 1832 to Today — A comprehensive timeline of creatine research from Chevreul's 1832 discovery through Harris et al.'s 1992 breakthrough to modern ISSN position...
• The Phosphocreatine System: Why Your Muscles Run Out of Energy — An in-depth analysis of the phosphocreatine energy system: PCr depletion kinetics, energy system contributions, fiber type differences, and implications for...
• What Is Creatine Monohydrate? The Complete Scientific Guide — A research-grade explanation of creatine monohydrate: its chemical structure, endogenous synthesis, dietary sources, and the science behind supplementation....