Understand why your clients move differently.
Squat, deadlift, pulls, presses: LevierMap helps you connect your clients’ body proportions to their exercise selection, limitations, and natural strengths.
Fewer random adjustments. More consistency in your recommendations.
What is LevierMap?
LevierMap is an analysis tool based on the body’s segmental proportions.
It helps you understand why some movements naturally suit a client, while others require more technical adaptation.
You identify natural leverage advantages
You quickly identify profiles that are better suited to squats, deadlifts, pulls, or presses.
You adapt exercise selection
You can choose variations, ranges of motion, angles, and technical priorities more easily.
You reinforce your professional expertise
Your recommendations become clearer, easier to justify, and more professional.
LevierMap quick reading
Coach objective: use the ratios as a compass to choose variations, ranges of motion, angles, and technical priorities.
A low, neutral, or high ratio does not classify the client. It indicates a likely mechanical tendency, which must be validated through movement observation.
Push / pull
Range of motion
Stance
Grip
Joint tolerance
What are segmental ratios used for?
Segmental ratios compare the relative lengths of different body segments.
Torso / Femur
Wingspan / Height
Humerus / Forearm
Clavicle / Humerus
These ratios help explain why a squat feels natural for one client and more restrictive for another, why some clients progress quickly on pulling movements but stall on presses, or how to guide programming from the first sessions.
Important: these are mechanical indicators. They are not judgments of potential.
Check measurement landmarks
To obtain a usable reading, measurements must be taken under simple, stable, and repeatable conditions.
The goal is not medical-level precision, but a sufficiently consistent baseline to guide exercise selection, variations, and technical adjustments.
Height
The client stands against a wall, barefoot, heels on the floor, eyes looking straight ahead. The heels, glutes, and upper back should stay as close to the wall as possible.
Measure from the floor to the top of the head. Use a stable horizontal reference to avoid an angled measurement.
Wingspan
The client extends the arms horizontally, palms facing forward or against a wall, without shrugging the shoulders.
Measure the distance between the fingertips of one hand and the fingertips of the other hand.
Femur
Measure the distance between the hip, at the level of the greater trochanter, and the knee.
The landmark must remain consistent between clients so the tibia / femur ratio remains usable.
Tibia
Measure from the area below the knee to the ankle.
The goal is to compare the relative length of the tibia with the femur to better understand squat mechanics.
Torso
Measure from the top of the sternum to the pelvis, with the client standing in a neutral posture, without intentional extension.
This measurement allows you to compare torso length with femur length, especially to interpret relative tolerance between squat and hip hinge patterns.
Humerus
Measure from the shoulder to the elbow, with the arm relaxed or slightly positioned to make the landmarks easier to identify.
This measurement helps interpret movement paths, presses, pulls, and certain joint constraints.
Forearm
Measure from the elbow to the wrist, without including the hand.
This data is useful for comparing the forearm to the humerus and better understanding certain advantages or constraints in pulls, curls, and presses.
Clavicle
Measure from one shoulder to the other, at the level of the acromioclavicular landmarks.
This measurement gives an indication of relative shoulder width and can help interpret profiles that may be better suited to pressing movements.
Understanding each ratio
Each ratio gives an analysis direction. It does not replace movement observation, but it helps explain why certain exercises may naturally suit one client better than another.
Tibia / Femur
This ratio strongly influences squat mechanics. It helps explain the distribution between the quadriceps, glutes, posterior chain, and torso angle.
A relatively long tibia often supports a more upright position and a more natural squat. A relatively long femur may require more adaptation: stance width, torso angle, range of motion, variation, or exercise selection.
Torso / Femur
This ratio influences stability under load, natural torso angle, and relative tolerance between squat and deadlift patterns.
A relatively long torso can make a more upright squat posture easier. A long femur combined with a shorter torso may point more toward hip hinge movements, such as the deadlift or its variations.
Wingspan / Height
This ratio compares total arm length to the client’s height. It influences the relationship between pulls, presses, deadlifts, and certain sports requiring reach.
Long arms can favor pulls, pull-ups, rows, and certain deadlifts. Shorter arms can reduce the range of motion on presses, especially the bench press.
Humerus / Forearm
This ratio influences movement paths, joint comfort, and the mechanics of curls, pulls, push-ups, dips, and presses.
A relatively long forearm can create advantages on certain pulls and grips. A relatively long humerus may require more attention on pressing movements, especially range of motion, elbow angle, and shoulder stability.
Clavicle / Humerus
This ratio gives an indication of relative shoulder width and potential pressing mechanics.
Long clavicles can offer a mechanical advantage on certain pushing movements. Shorter clavicles or a long humerus may require more attention to loading, movement path, and joint tolerance.
Advanced reading of LevierMap ratios
This section helps deepen ratio interpretation after calculation. It complements the tool without replacing your technical observation.
Go deeper: Tibia / Femur
What this ratio measures
The Tibia / Femur ratio compares tibia length to femur length. It influences torso uprightness in the squat, quad / hip dominance, and comfort in deep squats.
Quick reading
- < 0.75: proportionally long femur, squat often more forward-leaning.
- 0.75–0.83: neutral zone, versatile profile.
- > 0.83: proportionally long tibia, more upright squat.
Sports & favored profiles
- Long femur: deadlift, strongman, sprinting, horizontal jumps, hip power.
- Neutral: CrossFit, general fitness, team sports.
- Long tibia: weightlifting, deep squats, jump landings.
Coach recommendations
- Long femur: front squat, box squat, goblet squat, split squat, hip thrust, deadlift.
- Neutral: back squat, front squat, lunges, Bulgarian split squat.
- Long tibia: high-bar squat, front squat, hack squat, leg press, step-ups.
Coaching caution: do not force an upright squat on a long-femur profile. Conversely, with a highly quad-dominant profile, monitor patellar tolerance, load progression, and total knee-flexion volume.
Go deeper: Torso / Femur
What this ratio measures
The Torso / Femur ratio compares torso length to femur length. It influences the ability to stay braced and upright in the squat, as well as comfort in deadlift patterns.
Quick reading
- < 1.20: long femur / short torso, deadlift often favored.
- 1.20–1.35: neutral zone, good potential on both patterns.
- > 1.35: long torso, more upright squat.
Sports & favored profiles
- Long femur / short torso: heavy deadlift, strongman, sprinting, explosive movements.
- Neutral: CrossFit, team sports, general strength & conditioning.
- Long torso: weightlifting, back squat, martial arts, grappling.
Coach recommendations
- Long femur / short torso: adapted stance, controlled range of motion, controlled tempo, hip hinge, RDL (Romanian deadlift).
- Neutral: alternate squat and deadlift blocks, use pause squats, deficit deadlifts, or block pulls.
- Long torso: back squat and front squat as key lifts, anti-extension core work.
Coaching caution: with a long-femur / short-torso profile, monitor lumbar rounding and forced depth. With a long-torso profile, deadlifting is still possible, but very high volumes may increase lower-back fatigue.
Go deeper: Wingspan / Height
What this ratio measures
The Wingspan / Height ratio compares total arm length to height. It influences pulls, bench press, dips, deadlift, and reach in certain sports.
Quick reading
- < 1.00: relatively short arms, pressing often favored.
- 1.00–1.03: neutral zone, good push / pull balance.
- > 1.03: long arms, pulling often favored.
Sports & favored profiles
- Short arms: bench press, dips, gymnastics, powerlifting.
- Neutral: CrossFit, team sports, general fitness.
- Long arms: swimming, combat sports, climbing, pull-ups, rows.
Coach recommendations
- Short arms: take advantage of heavy bench work, while maintaining sufficient pulling volume.
- Neutral: balanced push / pull work, alternating strength cycles.
- Long arms: prioritize pull-ups, rows, and back work; on the bench press, adjust grip, tempo, and range of motion.
Coaching caution: for long-armed clients, the bench press is often more demanding: monitor the shoulder at the bottom of the movement and avoid forcing a painful range of motion. For short-armed clients, avoid neglecting back work just because presses progress quickly.
Go deeper: Humerus / Forearm
What this ratio measures
The Humerus / Forearm ratio describes the proportion between the upper arm and the forearm. It influences bench press paths, comfort during curls, pulling mechanics, and tension distribution between the upper arm and forearm.
Quick reading
- < 0.95: proportionally long forearm, pulls and curls often favored.
- 0.95–1.05: neutral zone, adaptable profile.
- > 1.05: proportionally long humerus, pressing movements require finer management.
Sports & favored profiles
- Long forearms: climbing, grappling, pulls, grip work.
- Neutral: general strength training, CrossFit, team sports.
- Long humerus: visual potential for the arms, but bench press and dips need individualization.
Coach recommendations
- Long forearms: pull-ups, heavy rows, farmer walks, supinated and neutral-grip curls.
- Neutral: classic curl, pulling, and pressing variations.
- Long humerus: scapular stability, elbow positioning, upper-back engagement, controlled range of motion.
Coaching caution: long forearms can create significant grip fatigue: manage pulling volume. With a long humerus, limit very deep dips if discomfort appears and secure pressing work with a strong upper-back position.
Go deeper: Clavicle / Humerus
What this ratio measures
The Clavicle / Humerus ratio reflects the relationship between skeletal shoulder width and arm length. It influences shoulder stability, pressing movements, visual width, and overhead work.
Quick reading
- < 0.95: relatively short clavicles, more compact profile.
- 0.95–1.05: neutral zone, good stability / mobility balance.
- > 1.05: relatively long clavicles, marked shoulder width.
Sports & favored profiles
- Short clavicles: gymnastics, calisthenics, close-range combat sports.
- Neutral: strength sports, power development, versatile strength & conditioning.
- Long clavicles: bodybuilding, volleyball, basketball, handball, overhead work.
Coach recommendations
- Short clavicles: prioritize upper back, rear delts, face pulls, Y/T/L raises.
- Neutral: classic push / pull / legs or upper / lower split, with volume adjusted to the goal.
- Long clavicles: develop bench press, incline press, and overhead press, with strict scapular control.
Coaching caution: long clavicles do not remove the need for scapular control. Short clavicles may require more caution with high pressing volumes if the anterior shoulder becomes sensitive.
Use these readings as a biomechanical compass: they guide your choices, but the final decision still depends on real technique, mobility, possible pain, and your coaching observation.
Simple profile examples
Squat-friendly
Long tibia, long torso. A profile often more comfortable with deep squats and quad-dominant work.
Deadlift-dominant
Long femur, short torso. A profile often favored for deadlifts, hip hinge patterns, and hip power.
Puller
Long arms, long forearms. A profile often well suited to pull-ups, rows, and grip-demanding efforts.
Presser
Short arms, broad clavicles. A profile often favored for bench press, dips, and pressing movements.
Mixed profile
Most clients combine several tendencies. The key is to prioritize the right adjustments.
Profile to observe
A ratio gives a direction, but real execution remains essential to validate your choices.
Limits and precautions
What the ratios show
- Natural mechanical leverage
- Performance tendencies
- Likely constraints on certain movements
- Useful guidance for programming
What they do not show
- The client’s actual technique
- Available mobility
- Asymmetries
- Injury history
- Actual training level
LevierMap never replaces your coaching eye. It gives you an analysis base, but movement observation, field experience, and technical adjustments remain essential.
Two clients with similar ratios may still require different approaches.
Access LevierMap
LevierMap is included in BodyMetrics. Access is therefore provided through BodyMetrics, giving you a complete environment to analyze, decide, and structure coaching follow-up.
If you first want to understand what BodyMetrics includes, start with the presentation page. If your choice is already made, you can go directly to registration.
LevierMap does not replace your expertise. It structures it.
You move from “I adjust based on feel” to “I understand why I adjust.”
With BodyMetrics, LevierMap becomes one part of a broader system: biomechanical analysis, body composition, cardio, energy, habits, chronotype, and follow-up preparation.