55–62 mL/kg/min
Elite VO2 max
150 kg+ / 130 kg+
Elite male clean / snatch
Sub-2:30
Elite Fran benchmark
16–20 mmol/L
Post-Fran blood lactate
Biomechanical Analysis
What your body
needs to excel.
Athlete Profile assesses the specific biomechanical traits that predict elite performance in CrossFit. These aren't generic fitness metrics - they're sport-specific physiological signatures.
Phosphagen-to-Glycolytic Transition Tolerance
The first 90 seconds of every workout
A typical CrossFit metcon opens with 10–20 seconds of ATP-PCr-driven barbell cycling - thrusters at 60% 1RM, snatches at 70% 1RM - before the phosphocreatine pool depletes and glycolysis takes over, dumping H+ ions into the muscle by the second minute. Elite athletes tolerate blood lactate rising past 14 mmol/L while still cycling barbells at sub-3-second reps. Sluggish lactate buffering shows up as a stall on rep 12 of a 15-rep set, where the hip-drive timing breaks down and the bar grinds out of the rack position.
Triple-Extension Power for the Olympic Lifts
Snatch, clean, and jerk under fatigue
The second pull on a snatch generates peak vertical ground reaction forces of 2.8–3.2× bodyweight inside 0.15 seconds, driven by simultaneous ankle plantarflexion, knee extension, and hip extension through gluteus maximus and biceps femoris. Games athletes execute 15-rep touch-and-go cleans at 100 kg with cycle times under 2.5 seconds per rep - a rate of force development metric that collapses fast when posterior-chain symmetry drifts past 8%. Our CMJ profile catches the eccentric-to-concentric transition deficit before it shows up on the platform.
Glenohumeral Stability Under Kipping Cycles
Pull-ups, toes-to-bar, muscle-ups, handstand push-ups
Kipping gymnastics drive the glenohumeral joint through repeated end-range flexion-to-extension arcs while the rotator cuff - supraspinatus, infraspinatus, subscapularis - fires reactively to keep the humeral head centred. A 30-rep bar muscle-up set exposes the labrum and long head of biceps tendon to 120+ end-range loading cycles. Posterior labral SLAP tears and biceps tendinopathy track directly with deficient scapular upward-rotation timing, which our balance and symmetry composite isolates before the kip pattern grooves the dysfunction.
Anti-Flexion Spinal Bracing Under Mixed Loads
Holding the lumbar arch from deadlift to wall-ball
A typical Open workout pairs heavy deadlifts at 100–142 kg with high-rep wall-balls and box jumps, demanding that the erector spinae, quadratus lumborum, and transverse abdominis maintain neutral lumbar lordosis through hundreds of hip hinges in a fatigued state. Trunk endurance below the McGill side-bridge benchmark of 90 s is associated in observed cohorts with the late-workout posture collapse that drives lumbar disc herniation at L4-L5 and L5-S1. Symmetry asymmetries above 12% on isokinetic trunk extension flag the athletes most exposed.
What Athlete Profile Measures
Your CrossFit
assessment report.
Three-Energy-System Workout Architecture
The Open's signature events stack a 1RM lift, a 5–10 minute lactic metcon, and a 20+ minute aerobic chipper into a single weekend. Athletes who medal at the Games hold VO2 max above 55 mL/kg/min while still benching 1.5× bodyweight and back-squatting 2.4× bodyweight - a combination almost no other sport selects for. Our profile identifies which of the three systems is the rate-limiter so programming weights the deficit instead of the strength.
Lactate Tolerance for the Sub-2:30 Fran
The benchmark workout Fran (21-15-9 thrusters at 43 kg / pull-ups) is the canonical lactate-tolerance test: elite times below 2:30 produce post-workout blood lactate of 16–20 mmol/L with respiratory exchange ratios above 1.15. Athletes who break sets in the round of 15 are not undertrained on thrusters - they have hit the H+ buffering ceiling of their Type IIa fibers. We baseline this through repeat-effort decrement on the lateral shuffle.
Open-Event Athlete Profiling
The Open scores athletes across 3–4 workouts that are deliberately constructed to expose the worst modality in their portfolio - heavy lifts paired with monostructural cardio, gymnastics paired with a barbell. Our composite ranking on power, endurance, coordination, and symmetry is associated in observed cohorts with which week of the Open will rank an athlete the lowest, so off-season programming closes the specific gap rather than adding volume to existing strengths.
Phosphagen Recovery Between Events
On Games-day three- and four-event formats, ATP-PCr resynthesis between events drives whether the second workout opens at full barbell-cycling speed or four reps slower. Recovery to 90% phosphocreatine takes 4–6 minutes in trained athletes, but heat stress and prior glycolytic load extend the window past 10 minutes. Our coordination-under-fatigue battery isolates the athletes whose neuromuscular drive returns fastest after a maximal session.
Sample CrossFit Fit Report
What you'll receive after your assessment
Sport Fit Score
55–62 mL/kg/min
Percentile-ranked against age + sex-matched athletes
Biomechanical Grade
A–F
Per-trait scoring across all 5 assessment dimensions
Loading Patterns Observed
6 described
Sport-specific loading patterns from published cohort literature with corrective movement suggestions
Common loading patterns observed in CrossFit
Drawn from published cohort literature for elite competitors in this sport. Descriptive only - not predictive, not diagnostic, and not specific to any individual athlete. Consult a qualified healthcare professional for any medical concern.