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505 Agility Test

The 5-0-5: a timed 180-degree turn with a measured approach and exit.

15
metrics
0
gradable today
7
events detected
Start an assessmentMetric reference
What this test measures

What it tests, what QOOM measures, what you get

What it tests
The 5-0-5: a timed 180-degree turn with a measured approach and exit.
What QOOM measures
Test duration, approach-to-exit ratio, peak forward velocity, braking percentage, peak knee flexion and dynamic valgus, foot placement, trunk lean and torso heading at the turn.
What you get
Timed result with the turn broken into events, and metric zones.
How it is captured

The protocol

Two phones on tripods, stereo-calibrated once. The protocol below is the one the analysis pipeline is written against.

Subject starts 10 m from the turning line. Sprints through timing gates at 5 m, plants and performs a 180-degree turn on the line, then sprints back through the 5 m gates. Time recorded over the central 5-0-5 m segment. One trial per leg.

Category
Agility
Environment
Overground
Trial structure
One timed trial
Minimum capture
3 s

Camera setup guide

Events detected

The moments the analysis finds first

Every metric is measured between events. These are detected from the reconstructed skeleton before any metric is computed.

  1. 1

    Trial Start

    trial_start

    First frame of the captured trial.

  2. 2

    Acceleration End

    acceleration_end

    Frame where approach acceleration plateaus (peak forward velocity reached).

  3. 3

    Deceleration Onset

    decel_onset

    Frame where forward velocity begins decreasing prior to the turn.

  4. 4

    Plant

    plant

    Frame of the turning-leg foot strike that initiates the 180-degree direction change.

  5. 5

    Direction Change

    direction_change

    Frame where horizontal velocity reverses sign (subject now moving in exit direction).

  6. 6

    Exit Push-Off

    exit_push_off

    Frame of the first push-off step in the exit direction after the turn.

  7. 7

    Trial End

    trial_end

    Last frame of the captured trial.

Every metric

The full metric list

This is the complete list the analysis produces for this assessment — the same list the metric reference documents. A metric with a reference distribution shows the direction that reads as better and the evidence level behind it; where the evidence gate withholds the zone, the reason is shown instead of a grade.

  • 5-0-5 Durationms
    five_oh_five_duration_ms
    Zone withheld — no recorded sourceevidence: approximate

    Total time from the 5 m gate entry to the 5 m gate exit after the turn.

  • Approach/Exit Ratio—
    approach_exit_ratio
    No reference distribution

    Ratio of approach time to exit time. Values near 1.0 indicate symmetric acceleration/deceleration.

  • Peak Forward Velocitym/s
    peak_forward_velocity_mps
    Zone withheld — no recorded sourceevidence: approximate

    Maximum horizontal COM velocity during the approach phase.

  • Braking Percentage%
    braking_pct
    Zone withheld — no recorded sourceevidence: approximate

    Proportion of the total 5-0-5 time spent decelerating. Higher values indicate slower deceleration strategy.

  • Peak Knee Flexion°
    peak_knee_flexion_degPer side
    Zone withheld — no recorded sourceevidence: approximate

    Maximum knee flexion during the plant and turn phase.

  • Peak Dynamic Knee Valgus°
    peak_dynamic_knee_valgus_deg
    No reference distribution

    Maximum medial knee collapse during the plant. Frontal-plane knee alignment marker at the turn.

  • Foot Placement vs COMm
    foot_placement_m
    No reference distribution

    Horizontal distance between the plant foot and the COM at the moment of plant.

  • Trunk Lean at CoD°
    trunk_lean_at_cod_deg
    No reference distribution

    Lateral trunk lean at the moment of direction change. Read alongside knee valgus at the plant.

  • Torso Heading at CoD°
    torso_heading_at_cod_deg
    No reference distribution

    Torso rotation relative to the direction of travel at the moment of direction change.

  • Pelvis Vertical Excursionm
    pelvis_vert_excursion_m
    No reference distribution

    Trial-aggregate range of vertical pelvis-COM motion. Indexes how much the centre of mass rises and falls relative to the support base.

  • Pelvis Lateral Excursionm
    pelvis_lateral_excursion_m
    No reference distribution

    Trial-aggregate range of medio-lateral pelvis-COM motion. Quantifies side-to-side sway, including during single-leg stance.

  • Pelvis Forward Excursionm
    pelvis_forward_excursion_m
    No reference distribution

    Trial-aggregate range of anterior-posterior pelvis-COM motion. Forward progression in gait; forward travel and braking depth in jumps.

  • Pelvis Vertical Excursion (SD)m
    pelvis_vert_excursion_sd_m
    No reference distribution

    Cross-cycle (or cross-rep) standard deviation of vertical pelvis-COM excursion. Higher SD signals movement variability.

  • Pelvis Lateral Excursion (SD)m
    pelvis_lateral_excursion_sd_m
    No reference distribution

    Cross-cycle standard deviation of lateral pelvis-COM excursion. Used as a stability marker for repeated gait/jump tasks.

  • Pelvis Forward Excursion (SD)m
    pelvis_forward_excursion_sd_m
    No reference distribution

    Cross-cycle standard deviation of forward pelvis-COM excursion. Used as a stability marker for repeated gait/jump tasks.

What the report contains

Sections of the report

The per-trial report is assembled from these sections, in this order.

  1. 1

    Key Metrics

    Headline metrics with normative zone colour bars.

  2. 2

    Metric Zone Overview

    All metrics displayed as gradient zone bars.

  3. 3

    Phases & Events

    COM horizontal velocity with event markers showing approach, decel, plant, exit.

  4. 4

    Joint Kinematics

    4-panel grid: knee, hip, trunk lean, torso heading through the turn.

  5. 5

    Description of Metrics

    Full-text description of every metric in the report and what each one measures.

  6. 6

    Quality Assurance

    QA verdict, reasons, warnings, schema version, report hash.

Quality checks

What can stop a result

Each trial is checked before metrics are reported. A failed check either blocks the result or marks it partial — it is never silently graded.

  • Mean pose-estimation confidence across trial must be >= 0.60

    min_pose_confidence
    Blocked

  • No contiguous occlusion > 0.5 s on key landmarks (hip, knee, ankle)

    no_major_occlusion
    Partial

  • All 7 events must be detected with confidence >= 0.5

    505_all_events
    Partial

  • Horizontal velocity must show a clear sign reversal

    505_direction_reversal
    Blocked

  • Peak approach velocity must be >= 2.0 m/s

    505_min_approach_velocity
    Blocked
Blocked —
No metrics are reported for the trial.
Partial —
Metrics are reported with a warning; the affected values are flagged.
How grading is decided

When a metric gets a zone

A metric can be graded only when the norms registry holds a reference distribution for it, and a zone is shown only when the evidence gate admits that distribution’s provenance and evidence level. A distribution the gate refuses stays in the registry, auditable, with no zone.

0 of 15 metrics can be graded today

4 carry a reference distribution · 4 zones withheld by the evidence gate: 4 × no recorded source

Evidence levels behind this assessment’s reference distributions

  • published0

    Values traceable to a peer-reviewed population study. Reserved; nothing in the registry currently qualifies.

  • consensus0

    Anchored to a recognised clinical guideline or expert-consensus cutoff. Values are approximate, but the cutoff is citable.

  • approximate4

    Informal literature ranges or general-adult estimates, not validated against a specific cohort. The honest default.

  • unvalidated0

    A two-point estimate or an inferred value. A distribution is declared, but the evidence gate withholds the zone.

How the evidence gate worksFull metric reference

Run this assessment.

Two phones, one guided protocol, and a report at the end.

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