Programs that actually work.
Comprehensive, evidence-based training programs and guides for athletes at every level.
Throwing Readiness Benchmarks After Shoulder Dislocation: ROM, Strength, and Velocity Checkpoints
ROM, strength, and velocity checkpoints that tell you when a throwing shoulder is actually ready for volume after a dislocation, not just pain-free.
Snowboard Halfpipe Landing Load Testing: Why Trick Height Fades Late in a Run
Landing forces in halfpipe hit 3-5x bodyweight. Track that load hit-by-hit across a run and you'll see exactly why the closing trick lands short.
Syndesmosis High Ankle Sprain Return Readiness: External Rotation and Hop Endurance Criteria
A syndesmosis sprain heals slower than a lateral ankle sprain. External rotation staging and hop endurance testing show when it's actually ready.
Thumb UCL (Skier's Thumb) Return to Grip: Pinch and Grip Dynamometer Symmetry Criteria
Pain-free isn't grip-ready. Key pinch and power grip symmetry percentages that clear a thumb UCL sprain to hold a stick, crimp, or hook grip again.
Triathlon Brick Run Test: Measuring Cadence Collapse in the First Kilometer Off the Bike
Quantify transition weakness with a cadence/pace-drop protocol for the first kilometer off the bike, plus real research on why the run leg falls apart.
Triple Jump Phase Ratio: Finding Which of the Hop, Step, or Jump Is the Weak Link
Hop, step, and jump distances add up fine, but one phase is quietly costing you meters. Measure the split and find which leg is losing distance.
UCL Elbow (Tommy John) Return Benchmarks: Throwing Velocity and Load Stages
Pain-free isn't throw-ready. Long-toss distance, velocity-recovery percentages, and flexor-pronator strength checkpoints that clear a UCL elbow to pitch.
How Wrong Is Your Field-Test VO2max Estimate?
Cooper and beep test VO2max numbers carry real error bars. See the validation data behind both formulas and when the estimate misleads.
The 30-15 Intermittent Fitness Test: A Complete Guide to VIFT
One VIFT number hides more than it shows. See the validation research behind the 30-15 IFT and how it compares to Yo-Yo and beep tests.
Fixing CMJ Eccentric-Concentric Phase Split Errors From Arm Swing and Unweighting Drift
CMJ phase detection error skews RSI and power output when arm swing or fast unweighting move the eccentric-concentric split. Here's how to catch and fix it.
CMJ Numbers Dropped But the Athlete Doesn't Feel Fatigued? Here's How to Read It
Your CMJ height fell 6% but the athlete feels fine. Check movement time and force development first, not jump height, to tell real fatigue from noise.
Field-Based Anaerobic Capacity Test Options: Choosing by Accuracy, Equipment, and Sport Fit
Margaria-Kalamen, RAST, jump, and RSA shuttle tests compared by accuracy, equipment, and sport fit, with protocols, norms, and real validation studies.