Entry #020: Methodological Variance in Lactate Threshold Determination
Insane. What a journey so far already. 20 Entries and so much community engagement! It has been an absolute pleasure
Snippet #017: Polygenic Scoring Identifies General Endurance Predisposition
The Mechanism
Genetic Endurance Prediction Scores (GES) aggregate the weighted influence of multiple single nucleotide polymorphisms (SNPs) to estimate athletic
Entry #019: The influence of humidity on sports performance
Scope and Context
This overview is for endurance coaches and athletes preparing for performance in hot, humid environments. It specifically
Introducing Gradescale: An Endurance Analytics Platform That Shows Its Work
A contribution to the science-curious end of the endurance community
Over the past few months, this corner of the
Snippet #016: Explosive Training Accelerates Neural Drive for Faster Force Production
The Mechanism
Explosive-strength training involves moving moderate loads (40–79% of 1RM) with maximal intended acceleration. This specific stimulus
Entry #018: Top supplements for longevity and ahtletic performance
The traditional demarcation between performance enhancement and longevity medicine is dissolving. Emerging data from 2024 and 2025 indicate that the
Introducing the Calculator Library: 29 Peer-Reviewed Tools, One Transparent Workbench
The Scientist's Notebook is releasing what I believe is the largest free, source-cited collection of endurance calculators
Snippet #015: Gut Microbiota Adapt to Metabolize Systemic Lactate During Endurance Efforts
Current research identifies the intestinal microbiome as a responsive metabolic organ rather than a static passenger during physical exertion. During
Entry #017: Autonomic Regulation and HRV-Guided Training Architecture
The quantification of recovery remains the most elusive variable in endurance periodization. While external load—measured in watts or pace—
Snippet #014: Autonomic Competition at the Sinoatrial Node Drives HRV
The Mechanism
Heart rate variability (HRV) emerges from the dynamic interplay between sympathetic and parasympathetic signaling at the sinoatrial node,
