A sharp 180° change of direction — sprint, stop, pivot, and re-accelerate — is a demanding action in sport. It exposes how efficiently an athlete can brake, stabilize, and redirect force. It also reveals asymmetries and control deficits that often go unseen in standard testing.

Why focus on the 5-0-5 test

The 5-0-5 test isolates key elements of change-of-direction performance:

• High-intensity braking on the final steps before the change of direction.
• Explosive concentric drive on exit.
• Proper knee, hip, and trunk alignment to absorb and redirect force efficiently.

These components make the 5-0-5 test ideal for assessing:

• Agility and coordination under maximal load.
• Return-to-sport readiness, where asymmetries often persist beyond other tests.
• Technique optimization, highlighting inefficiencies that limit speed or stability.

Overall, the test allows quantifying how effectively an athlete decelerates, turns, and re-accelerates — and whether that strategy is both safe and efficient.

What the module does

• Detailed joint-level biomechanics from video: Tracks knee flexion and dynamic knee valgus angles, hip and trunk angles, center of mass trajectory, and turning posture.
• Fully automated event detection and metrics extraction: Identifies key events and extracts important metrics linked to injury prevention and performance.
• Instant reporting and dashboards: Produces joint level time-series comparisons, progress tracking, all embedded in our web app and PDF reports.
• Lab-grade accuracy: Works with standard high-speed video (iPhones can record up to 240 Hz) and applies biomechanical constraints for reliable data.

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What you get with this module

Each analysis breaks down the 5-0-5 sequence into its key phases and extracts metrics that matter for both performance and return-to-sport decisions:

• 5-0-5 duration: Reports the time between crossings of the 5 m line.
• 5-0 / 0-5 ratio: Evaluates deceleration versus re-acceleration efficiency, a balanced ratio reflects coordinated braking and propulsion.
• Peak forward velocity: Gives the subject's top speed before cutting.
• Percentage braking during contact: Represents how much kinetic energy is absorbed during the turn. Too much increases joint loads, too little suggests early braking and lost efficiency.
• Peak knee flexion: Measures how effectively the athlete absorbs load and stores elastic energy for re-acceleration, a balanced value optimizes shock absorption with force generation.
• Peak dynamic knee valgus: Quantifies how well the athlete controls knee motion under load, a large value might increase injury risk.
• Foot placement vs. center of mass: Assesses how far the foot lands ahead of the body, a balanced placement supports efficient turning and reduces impact stress.
• Trunk lean and torso heading: Captures how the upper body aligns with the travel direction, critical for reducing joint loads and optimizing transition speed.

All results are displayed through interactive charts and reports, using a traffic-light color system to highlight normal, near-normal, or atypical values based on normative data and individual body dimensions, enabling meaningful comparisons across athletes and sessions.

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How to embed in your workflow

• For medical staff: Support return-to-sport decisions with whole-body movement data. Identify compensations, residual asymmetries, and sub-optimal change-of-direction control that may not appear in other tests.
• For performance coaches: Complement stopwatch times with detailed movement information. Assess how efficiently athletes change direction, identify technique flaws, and track changes over time.
• For athletes: Access objective, visual feedback on movement efficiency and control to guide safer, more informed development.

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Practical workflow

1. Capture: Record the test with 2-3 smartphones at 120–240 Hz.
2. Analyze: Within minutes, the system reconstructs 3D motion, detects events, computes metrics, and generates a report.
3. Interpret and track: Compare sessions, monitor progress or fatigue patterns, and export results as CSV or PDF.

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Bringing lab-grade insight to daily practice

The automated 5-0-5 analysis module helps translate biomechanical assessment from the lab to the field. It combines high-precision kinematics, automated event detection, and clear visual reporting to support clinicians and performance staff with detailed movement information. Whether you’re monitoring rehabilitation, movement quality, or agility performance, this module provides objective data to inform your decisions.