jump testing
Rugby Lineout Elevation Test: Apex Height and Time-to-Peak as a Selection Tool
Two jumpers post the same combine vertical, but only one wins clean lineout ball. Measure apex height and time-to-peak in the lift, with protocol and norms.
Standing Broad Jump: Measuring It the Same Way Every Time
Standing broad jump measurement drifts without a locked toe-line, heel-mark, and landing protocol, backed by real reliability data.
Volleyball Attack Jump Repeatability Test: Measuring Late-Set Jump Decrement
A 12-jump attack repeatability test scores late-set decrement %, not peak reach, to expose which hitters lose lift once rallies pile up. Protocol and norms.
Why a Wrist-Worn Sensor Under-Reads Vertical Jump Height
A wrist-mounted jump sensor tracks your arm swing, not your center of mass, and that mismatch quietly shaves centimeters off every jump. Here is the fix.
Basketball Repeat Rebound Jump Decrement Test: Protocol, Formulas, and Norms
Ten straight max rebound jumps expose how much height a player loses to fatigue. Get the basketball decrement test protocol, the formula, and benchmark ranges.
Countermovement Rebound Jump Test: Full CMRJ Testing Protocol
A CMJ that lands and rebounds into a second jump. Get the CMRJ protocol, contact-time benchmarks, and why it catches fatigue a jump-height test misses.
Gaelic Football High-Catch Jump Test: Measuring One-Step Approach Reach and Timing
A midfielder's vertical jump can look fine while his high fielding falls apart. The one-step approach reach test that actually measures catch readiness.
Troubleshooting Jump Sensor Overreads on Soft Surfaces: Mats, Turf, and the Contact-Delay Fix
Jump sensor overread on mats and turf comes from delayed ground contact detection. See the mechanism, real research, surface risk table, and a calibration fix.
How Arm Swing Inflates Your Jump Test Height (And How to Fix It)
Loose arm-swing rules can shift CMJ and squat jump height by several centimeters between sessions. Fix hand position so numbers reflect leg power, not arms.
Repeated Jump Anaerobic Endurance Test: Protocol, Fatigue-Slope Scoring, and Norms
A single jump height tells you nothing about round 15. A 20-jump field protocol that fits a fatigue slope to the decline and scores real anaerobic endurance.
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.
Standardizing Jump Test Conditions for Reliability: A Protocol Checklist
Footwear, arm swing, gaze, and warm-up quietly wreck jump test comparisons. A locked protocol checklist backed by three studies on what actually to control.