MyMacroFit
Dr. James Okonkwo

Strength & Performance Specialist

Dr. James Okonkwo

PhD Exercise Science · CSCS

PhD in Exercise Science and CSCS-certified strength coach. Former D1 athletic performance coach, now writes on muscle, strength, and sport science.

7 articles published

About Dr.

Dr. James Okonkwo holds a PhD in Exercise Science from Loughborough University, where his doctoral research focused on neuromuscular adaptations to resistance training. He is a Certified Strength and Conditioning Specialist (CSCS) with the NSCA.

Before moving into research and writing, James spent six years as a performance coach in collegiate athletics, working with D1 track & field and rugby programs. His coaching philosophy centres on individualisation — the same periodisation model that works for a 20-year-old sprinter rarely applies unchanged to a 40-year-old desk worker trying to add muscle.

James writes the performance and strength content at MyMacroFit. His articles consistently drill into the science: what the mechanisms are, which studies matter, and what the actual practical takeaway looks like. He has a particular interest in 1RM programming, hypertrophy periodisation, VO2 max development, and the physiology of body recomposition.

He is also a competitive powerlifter and has totalled over 600kg in competition.

Areas of Expertise

  • Strength & powerlifting programming
  • Hypertrophy & muscle physiology
  • Athletic performance & periodisation
  • VO2 max & cardiovascular conditioning
  • Body recomposition science
  • 1RM testing & load prescription

Gallery

Dr. James Okonkwo — photo 1
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Articles by Dr.

All articles
Health11 min read

The Complete Body Composition Guide: BMI, Body Fat, and What to Actually Track

A comprehensive guide to understanding body composition — what it is, how to measure it, what BMI gets wrong, healthy body fat ranges, and what metrics actually matter for health and fitness.

Muscle16 min read

The Complete Muscle Building Guide: Training, Nutrition, and Recovery

Everything you need to build muscle — how muscle growth works, protein targets, calorie surplus, training principles, progressive overload, and recovery. Start here.

Fitness10 min read

Strength Training for Weight Loss: Why Lifting Beats Cardio Long Term

Why strength training produces better long-term fat loss than cardio — covering muscle and resting metabolism, EPOC, body recomposition, and a practical starter programme.

Health8 min read

BMI vs Body Fat Percentage: Which One Actually Matters?

BMI vs body fat percentage — what each actually measures, the limitations of BMI, the skinny fat problem, and which metric you should be tracking for health and fitness.

Muscle11 min read

How to Build Muscle as a Woman: The Complete Guide (No Bulk, Just Tone)

How women can build muscle without getting bulky — covering progressive overload, protein needs, overcoming calorie surplus fear, and a realistic month-by-month timeline.

Muscle7 min read

Lean Bulking: How to Build Muscle Without Gaining Fat

The complete guide to lean bulking — the right calorie surplus, macro targets, training approach, and how to monitor progress so you gain muscle with minimal fat.

Health6 min read

Body Fat Percentage: What's Healthy and How to Lower It

What body fat percentage means, what's actually healthy for men and women, how to measure it accurately, and proven strategies to reduce it.