Gait Deviations

Foot slap

Draft — clinical review required
1 · Observe2 · Locate3 · Explain4 · Connect
Typical walking

Heel contact

Foot slap

Heel contact

Heel contact
Heel contact

Contact indicators: heel and forefoot · filled only during contact.

Observed deviation · Heel first, then rapid forefoot lowering

Watch the moment immediately after heel strike.

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Inspect gait moment · 0.0%

Illustrative demonstration angles and event timing · 0° is the reference, not a diagnostic cutoff.

Heel first, then rapid forefoot lowering

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Observed movement
  • Heel first, then rapid forefoot lowering
Example mechanism
  • Dorsiflexor weakness
  • A movement pattern alone does not establish its cause.
Teaching narration
  • Watch the moment immediately after heel strike.
  • In typical walking, the forefoot lowers gradually as the ankle dorsiflexors control plantarflexion eccentrically.
  • With foot slap, heel contact still occurs first, but the forefoot drops rapidly onto the ground.
  • Pause at the heel, then follow the forefoot. The difference is the speed of lowering.
  • One possible contributor is dorsiflexor weakness: the muscles cannot adequately control the downward movement.
  • Foot slap occurs during weight acceptance. Foot drop describes reduced dorsiflexion during swing. They can occur together, but they describe different parts of walking.

Connect — related deviations

Apply it

What can this animation establish?

Sources and review status

Draft — clinical review required

Starting points for verification. Validated protocols are linked where available; clinical content has not yet been reviewed.

Learning objectives
  • Identify the observed movement and its timing.
  • Distinguish the observation from a possible contributor.
  • Compare this feature with related deviations.