Performance Optimisation

Block Periodisation After 40: Modifying the Model for Masters Athletes

Masters athletes (40+) show measurably slower neuromuscular recovery, blunted anabolic hormone response, and increased connective tissue vulnerability. Standard 4-week accumulation blocks routinely exceed recovery capacity. Modified block periodisation with shorter mesocycles and higher deload frequency addresses these constraints.

5 min read · 2026-10-13

Post-Exercise Hypotension: The 22-Hour Blood Pressure Drop

Post-exercise hypotension (PEH) reduces systolic blood pressure by 5–20 mmHg for up to 22 hours after a single session. The vasodilatory mechanism is well-characterised — producing effects comparable to low-dose antihypertensive medication.

5 min read · 2026-10-13

Power Nap for Performance: The 26-Minute NASA Recovery Window

Discover the NASA-validated 26-minute nap protocol that boosts athletic alertness, reaction time, and motor performance without disrupting night sleep.

5 min read · 2026-10-13

NMN and NR for NAD+: Does It Improve Athletic Performance?

NAD+ precursors NMN and NR are trending in sports science. Here's what the actual research says about aerobic capacity, mitochondrial function and recovery.

5 min read · 2026-10-06

Open Water Swimmers Are Not Drowning From Hypothermia — They're Dying From Cold Shock. Here's the Difference.

Cold shock — not hypothermia — is the leading cause of open water drowning. Understanding the autonomic response, cold incapacitation, and SIPE gives athletes the knowledge to stay safe.

5 min read · 2026-10-06

Overtraining Syndrome vs Functional Overreaching: How to Tell Them Apart

Overtraining syndrome (OTS) and functional overreaching (FOR) produce similar symptoms but require opposite responses. Misclassifying FOR as OTS — and reducing load when more recovery alone is insufficient — delays diagnosis and extends impairment.

5 min read · 2026-10-06

Paleo Diet and Athletic Performance: What Paleolithic Athletes Really Ate

The paleo diet's evolutionary logic is genuinely interesting. Its application to trained athletes — who have carbohydrate demands that hunter-gatherers matched through entirely different food sources — is more complex than the popular framing suggests.

5 min read · 2026-10-06

Menstrual Cycle Training: Follicular vs Luteal Phase Programming

Oestrogen and progesterone fluctuations across the menstrual cycle measurably alter strength, aerobic performance, thermoregulation, injury risk, and recovery timelines. Phase-based training periodisation adapts training intensity and volume to hormonal context rather than applying a uniform weekly structure.

5 min read · 2026-09-29

Mental Fatigue and Performance: The Psychobiological Model Explained

Mental fatigue from work, screens, or decision-making reduces endurance performance by 11–15% via RPE — not by impairing muscles. Here's the mechanism.

5 min read · 2026-09-29

Nasal Breathing and CO₂ Tolerance: The Performance Evidence

The nose filters, humidifies, and — critically — produces nitric oxide that dilates airways and vasculature. Mouth breathing during submaximal exercise bypasses this system entirely, raising the anaerobic threshold earlier than necessary.

5 min read · 2026-09-29

L-Citrulline Malate for Cycling: The Nitric Oxide Evidence

Why L-citrulline outperforms L-arginine for nitric oxide production in cyclists — the eNOS pathway, urea cycle bypass, and 8g dosing protocol backed by Pérez-Guisado 2010.

5 min read · 2026-09-15

Macro Timing and Distribution: How Daily Spread Changes the Outcome

Meeting daily macro targets is the floor, not the ceiling. How protein, carbohydrate, and fat are distributed across meals directly influences muscle protein balance, glycogen replenishment, and training adaptation.

5 min read · 2026-09-15

Exogenous Ketones: What the Evidence Actually Shows for Athletic Performance

Ketone esters and salts are marketed as a fourth fuel source for athletes. The evidence is mixed, nuanced, and training-status dependent. Here is what Cox, Holdsworth and Dearlove actually found.

5 min read · 2026-08-25

Your Natural Muscle Ceiling Is Not Where You Think It Is — The Science of Genetic Potential

Every lifter eventually hits a progress plateau and wonders if they've reached their genetic ceiling. FFMI gives you an objective reference point — and most athletes are nowhere near it.

5 min read · 2026-08-25

Genetic Potential and Trainability: What the HERITAGE Study Found

The HERITAGE Family Study trained 481 subjects identically for 20 weeks. VO2max gains ranged from 0% to 100%. The reason is gene-environment interaction — and it changes how we think about genetic potential.

5 min read · 2026-08-25

Nordic Hamstring Curl: The Eccentric Exercise That Cuts Injury Risk 51%

The Nordic hamstring curl reduces hamstring strain injury by 51%. Here is the eccentric overload science and how to integrate it into any strength programme.

5 min read · 2026-08-18

Dehydration and Strength: 2% Body Weight Loss Costs Up to 8%

Dehydration of 1.5–2% body weight reduces muscular strength by 4–8% and endurance capacity by more. Here is the neuromuscular physiology and hydration protocol.

5 min read · 2026-08-11

Muscle Memory and Myonuclei: The Cellular Mechanism of Retraining

Muscle fibres that have previously hypertrophied retain extra myonuclei even after atrophy from detraining. These persistent nuclei — the cellular basis of muscle memory — allow trained athletes to regain lost mass significantly faster than untrained individuals building from zero.

5 min read · 2026-08-11

Chronotype and Optimal Training Time: 6am vs 6pm Hormonal Profiles

Chronotype determines when your hormonal, neuromuscular, and cardiovascular systems peak. Learn how diurnal variation affects strength output, VO2max, and injury risk — and how to align your training schedule with your biological performance window.

5 min read · 2026-07-21

Cluster Sets: Intraset Rest for More Volume at a Higher Load

Cluster sets use intraset rest intervals to maintain bar velocity and neural drive at heavy loads. Here's how this method outperforms traditional straight sets for strength development.

5 min read · 2026-07-21

Cold Water Immersion Recovers You Faster. It Also Blunts Hypertrophy. Here's When Each Outcome Matters.

Cold water immersion reduces DOMS and accelerates perceived recovery — but suppresses myofibrillar protein synthesis for up to 48 hours post-immersion. The decision to use CWI is a context-dependent trade-off, not a universal recovery tool.

5 min read · 2026-07-21

Carb Cycling: Training-Day vs Rest-Day Nutrition for Athletes

Carbohydrate cycling — varying carbohydrate intake based on daily training demand — optimises muscle glycogen on high-output days while improving fat oxidation on low-output days. The mechanism is GLUT4 translocation and post-exercise insulin sensitivity.

5 min read · 2026-07-14

Box Breathing and HRV: Training Your Resonance Frequency

Breathing at 0.1 Hz resonance frequency dramatically amplifies baroreflex sensitivity and HRV. Here's the protocol athletes are using to regulate pre-competition arousal.

5 min read · 2026-07-07

Building Muscle at 20% of Your 1RM: The Physiology Behind Blood Flow Restriction Training.

Blood flow restriction (BFR) training produces equivalent hypertrophic stimulus to heavy resistance training at 20–40% of 1RM loads. The mechanism — cell swelling, metabolic stress, and mTORC1 activation — explains why every elite rehabilitation programme now includes it.

5 min read · 2026-06-30

Active Recovery at 35–40% VO₂max Clears Lactate Three Times Faster Than Rest. Here Is Why It Works.

Active recovery at low intensity clears blood lactate 3× faster than passive rest. Here is the physiology and how to structure inter-session and between-bout recovery.

5 min read · 2026-06-16

Alcohol Clearance: How Long After Drinking Is It Safe to Train?

The body eliminates alcohol at approximately 0.015% BAC per hour — a fixed enzymatic ceiling that caffeine, water, exercise, and sleep cannot accelerate. Understanding the Widmark elimination model tells an athlete exactly when their physiology is ready to train again.

5 min read · 2026-06-16

Alcohol and Athletic Performance: What a Few Drinks Do to Recovery

Most athletes know alcohol isn't ideal for recovery. Few understand the specific mechanisms — or how little it takes to measurably impair the adaptations from a hard training session.

5 min read · 2026-06-16

VO₂max by Age: Complete Chart, Norms, and What Your Score Means

10 min read · 2026-04-05

Sleep Cycles Per Night: How Many You Need and Why It Matters

9 min read · 2026-04-04

Caffeine Half-Life: Exactly How Long Caffeine Stays in Your System

8 min read · 2026-04-03