ISAK Sport Anthropometry
Your Body Structure Determines How You Perform
At the elite level, small structural differences separate good from great.
Two athletes with identical body weight can produce completely different results on the field because of how their mass is distributed, how their frame is built, and how their proportions influence movement.
ISAK sport anthropometry maps the structure of your body to understand how you’re built for your sport—and how training and nutrition are shaping that structure over time.
What It Is
What ISAK Measures (And Why It Matters)
Bone Breadths – Your Structural Foundation
Your skeletal frame determines:
- How much muscle you can develop
- Your mechanical leverage for force production
- How your body tolerates load and impact
- Whether your structure suits your position
Bone structure doesn't change, but it defines the limits and potential of everything built on top of it.
Muscle Girths – Where Your Functional Mass Is
Girths show muscle development in specific regions, revealing:
- Whether mass gains are happening where they improve performance
- Asymmetries between left and right sides that affect movement quality
- If training is building the right adaptations for your sport
A larger thigh circumference means nothing if it's in the wrong place or creating imbalance.
Segment Lengths and Proportions – How You Move
Your proportions dictate:
- Stride length and acceleration mechanics
- How efficiently you change direction
- Where force is applied during sprinting, jumping, or contact
- Technical movement patterns specific to your sport
Two players with the same height can have completely different movement signatures based on leg-to-torso ratio.
Skinfolds – How Tissue Is Distributed
Subcutaneous tissue distribution affects:
- Power-to-weight ratio in acceleration and jumping
- Energy cost during high-intensity efforts
- Heat dissipation and recovery between efforts
This isn't about appearance. It's about whether your body composition supports or limits what you're trying to do on the field.
How It Works
What This Means for You
Structural Insight for Performance Decisions
Understand how your body is built relative to the demands of your sport and position. Identify whether your structure supports or limits specific performance qualities.
Track Real Adaptation, Not Noise
See how your body responds to training blocks, nutrition changes, and competition phases. ISAK data shows whether interventions are working or need adjustment.
Optimize Physique Without Guessing
Make informed decisions about mass gain, fat loss, or maintenance based on what your structure needs—not generic targets or guesswork.
Identify Imbalances Before They Become Problems
Side-to-side differences in muscle development or disproportionate loading patterns can signal compensation or injury risk. Early detection allows early intervention.
Build for Longevity, Not Short-Term Fixes
Support long-term development and career sustainability rather than chasing rapid changes that compromise performance or health.
“
Since I started to work with Synergy PRO Nutrition not only my performance and body composition improved immensely but I am much healthier and I feel great.
THIAGO SILVA
MMA Fighter
Why Use It?
Why ISAK, Not BIA or DEXA
BIA Devices (InBody, Tanita, etc.)
- Estimate body composition using electrical signals
- Highly affected by hydration, glycogen, recent training, and meal timing
- Provide total body numbers but no insight into structure, proportions, or distribution
- Not designed to assess how your body is built
DEXA Scan
- Measures bone density and regional lean mass
- Useful in research and clinical settings
- Expensive, not practical for regular monitoring
- Describes tissue quantity but not skeletal structure, proportions, or segmental symmetry
ISAK Anthropometry
- Directly measures your body using standardized, hands-on techniques
- Assesses structure, proportions, symmetry, and tissue distribution
- Fully repeatable across time, locations, and conditions
- Designed specifically for sport performance monitoring
ISAK doesn't guess. It measures. And because it's standardized internationally, changes over time reflect real adaptation, not device error or hydration fluctuations.
What To Expect
What Happens During an Assessment
All measurements are performed following official ISAK protocols using calibrated equipment.
The assessment includes:
- Skeletal breadths at key landmarks
- Muscle girths across major segments
- Skinfold measurements at standardized sites
- Lengths, heights, and proportional analysis
Results are interpreted in the context of your sport, position, and competitive level—not compared to generic population norms.
You receive a detailed profile of your anthropometric structure and how it relates to performance in your discipline.
Why Choose
Fight Fuel Nutritionist?
Tailored Sports and Performance Nutrition Plans:
I create customized performance nutrition strategies designed specifically for combat athletes. Each plan addresses your unique needs, from weight management to performance enhancement, recovery and health ensuring you’re ready for every bout.
Expert Guidance
With over 30 years of experience in performance nutrition, strength and conditioning and a background in combat sports and athletics, I not only know but understand the demands of your sport. My approach combines cutting-edge research with practical strategies to fuel your health, training and recovery.
Ongoing Support
My work doesn’t stop at providing a performance nutrition plan. I provide education on lifestyle interventions, sleep optimization, recipes, light therapy, stress reduction, I involve sport psychologists and sleep experts when necessary and offer continuous support and regular check-ins to adjust your program as needed, keeping you on track, improving your health, accelerating your recovery and performing at your best.
Proven Results
My athletes experience improved health, performance and faster recovery. I’ve successfully helped professional combat athletes optimize their health, performance and recovery through performance nutrition, recovery strategies, lifestyle interventions and light therapy.
Ready to Take Your Performance to the Next Level?
Let’s get started! Reach out to me today to schedule your initial consultation. Together, we’ll build a personalized performance nutrition plan that helps you achieve your goals and dominate in the ring, cage or mat.