Step-by-step, no fluff.
Practical guides for improving athletic performance and training smarter with measurable data.
Rugby RHIE Test: The Tackle-Sprint-Tackle Protocol and How to Read the Decrement
A fast 20m sprint won't show tackle fatigue in the 60th minute. The tackle-sprint-tackle RHIE set, decrement formula, and position benchmarks rugby staff use.
The Sailing Hiking Endurance Test: Standardizing an Isometric Hold to Track Hiking Conditioning
Hiking harder every week doesn't mean conditioning improved. This isometric hold test fixes knee and trunk angle so the trend line actually means something.
Seated Shot Put Test for Upper Body Power: Full Protocol and Norms
One seated throw isolates arm power from leg drive. Get ball weight by population, exact setup, and how to read a real distance change.
Skater Jump Lateral Power Test: A Field Protocol for Frontal-Plane Power
The skater jump lateral power test flags frontal-plane weakness vertical jumps miss. Setup, trial count, symmetry scoring, and fixes for a low score.
Ski Jump Takeoff Velocity: An IMU Protocol for Isolating the Athlete's Vertical Drive
Jump distance mixes in-run speed with leg drive. Learn the IMU protocol that isolates vertical takeoff velocity, with sensor placement and 2 cited studies.
Sled Push Load-Velocity Testing: A Field Protocol That Beats Guessing
Stop loading sleds by feel. Run this 5-load field test, calculate F0 and v0 from push velocity, and find each athlete's real power-peak load.
When Smith Machine Counterweights Skew Velocity Readings: How to Correct for the True Effective Load
A counterbalanced Smith machine quietly subtracts kilograms from your real load. Learn to measure the offset and stop it from wrecking your velocity zones.
Snowboard Halfpipe Pop: Reading Vertical Acceleration at Lip Departure
Halfpipe pop and landing impact create near-identical g-spikes on a raw trace. The windowing protocol that separates them, with 2 cited studies inside.
Softball Windmill Pitch Velocity: A Field Test Protocol for Hip-Driven Mechanics
A baseball radar setup undersells windmill velocity. Get the hip-first test protocol, distance-normalized benchmarks, and 2 cited biomechanics studies.
Speed Skating Repeated-Lap Power Decrement Test: Setup, Scoring, and Norms
A 3% lap-time fade can mean a 9% power drop. A repeated-lap speed skating test that scores lactate fatigue and stroke breakdown as two separate numbers.
Springboard Diving Takeoff Power Test: A Dryland Protocol for the Hurdle Step's Drive
Can't put a force plate under a diving board? Measure takeoff power with a dryland jump test, real board biomechanics research, and power benchmarks.
Sprint Kayak 200m Anaerobic Power Test: Ergometer Protocol and Power-Curve Scoring
A strong 1000m engine won't save a paddler at the 200m start line. An ergometer protocol that scores the full power curve, start to finish, with real cutoffs.