Why This Matters for MTs
- Gait is functional movement — it reveals how the body actually performs under dynamic load, not just how it looks standing still
- Muscle imbalances become visible — inhibited gluteus medius shows as a Trendelenburg gait; tight hip flexors show as reduced hip extension in terminal stance
- Pain patterns reveal themselves — antalgic gait tells you which side hurts and often narrows down the structure involved
- Neurological status is observable — foot drop, spasticity, and ataxia all have characteristic gait signatures that may warrant referral
- Treatment outcomes are measurable — reassessing gait after treatment provides objective evidence of change
Key Principles
The Gait Cycle
One gait cycle runs from initial contact (heel strike) of one foot to the next initial contact of the same foot. It has two main phases: Stance phase (~60% of the gait cycle) — the foot is in contact with the ground| Sub-phase | What Happens | What to Watch |
|---|---|---|
| Initial contact (heel strike) | Heel contacts the ground; ankle is dorsiflexed | Foot slap (weak dorsiflexors); no heel contact (equinus) |
| Loading response (foot flat) | Body weight transfers onto the limb; knee flexes slightly to absorb shock | Excessive knee flexion (quad weakness); trunk lateral shift (hip abductor weakness) |
| Midstance | Body passes over the supporting limb; single-limb support begins | Trendelenburg sign (gluteus medius weakness); excessive lateral trunk lean |
| Terminal stance (heel off) | Heel rises; body moves ahead of the supporting foot; hip extends | Reduced hip extension (tight hip flexors); early heel rise (tight gastrocnemius/soleus) |
| Pre-swing (toe off) | Toe pushes off the ground; limb begins to unload | Weak push-off (calf weakness); circumduction beginning (hip flexor weakness) |
| Sub-phase | What Happens | What to Watch |
|---|---|---|
| Initial swing (acceleration) | Limb lifts off the ground; hip and knee flex | Foot drop (peroneal nerve palsy, L4-L5); hip hiking to clear the foot |
| Mid-swing | Limb passes directly under the body; foot clears the ground | Circumduction (stiff knee or foot drop compensation); inadequate knee flexion |
| Terminal swing (deceleration) | Knee extends to prepare for heel strike; hamstrings decelerate the leg | Knee hyperextension on contact (quad dominance); insufficient knee extension (hamstring tightness) |
Normal Gait Parameters
| Parameter | Normal Value | Clinical Significance |
|---|---|---|
| Cadence | 100-120 steps/min | Decreased with pain, fear of falling, neurological conditions |
| Step length | ~72 cm (adults) | Asymmetric step length suggests unilateral pathology |
| Stride length | ~144 cm (double step length) | Decreased with hip flexor tightness, pain, deconditioning |
| Walking speed | ~1.2-1.4 m/s | Decreased speed is a general indicator of impairment |
| Base of support | 5-10 cm between heels | Widened with balance deficits, cerebellar dysfunction; narrowed with adductor spasticity |
| Arm swing | Reciprocal, symmetric | Reduced unilaterally (shoulder pathology, stroke); reduced bilaterally (Parkinson's) |
| Trunk rotation | Smooth, alternating with limb swing | Reduced rotation (trunk stiffness, pain); excessive lateral shift (hip abductor weakness) |
How to Perform a Gait Assessment
Setup:- Have the client walk along a straight path of at least 6-8 meters (a hallway works well)
- Observe from the front, side, and behind — each view reveals different deviations
- Ask the client to walk at their normal pace, then faster if possible
- Observe at least 3-4 passes in each direction
| View | What to Observe |
|---|---|
| Anterior (front) | Lateral trunk shift, arm swing symmetry, base of support width, foot progression angle, knee valgus/varus during stance |
| Lateral (side) | Heel strike quality, knee flexion/extension timing, hip extension in terminal stance, forward trunk lean, arm swing range |
| Posterior (behind) | Trendelenburg sign, pelvic drop, heel alignment (valgus/varus), gluteal muscle activation, trunk lateral deviation |
Clinical Application
Common Pathological Gait Patterns
| Gait Pattern | Description | Common Causes | MT-Relevant Treatment Focus |
|---|---|---|---|
| Antalgic | Shortened stance phase on the painful side; client rushes off the affected limb | Pain from any lower extremity or spinal source | Identify and treat the pain source; address protective muscle guarding |
| Trendelenburg | Pelvis drops on the swing side during single-limb stance on the affected side | Gluteus medius weakness (hip OA, L5 radiculopathy, post-hip surgery) | Gluteus medius/minimus release and strengthening; hip OA protocols |
| Compensated Trendelenburg | Trunk leans toward the stance limb (instead of pelvis dropping) | Same as Trendelenburg — the compensation masks the pelvic drop | Same treatment focus; lateral trunk musculature may also be hypertonic |
| Circumduction | Swing leg swings outward in a semicircle | Stiff knee (post-surgical, arthrofibrosis), foot drop, leg length discrepancy | Address knee ROM restrictions; assess for neurological referral if foot drop |
| Steppage (foot drop) | Exaggerated hip and knee flexion to clear a dropped foot | Peroneal nerve palsy (L4-L5), sciatic nerve injury, stroke | Refer for neurological assessment; treat peroneal nerve entrapment if applicable; see peripheral neuropathy |
| Spastic | Stiff, circumducting pattern (hemiplegic); scissoring pattern (diplegic) | Stroke (hemiplegic), cerebral palsy, MS, SCI | Spasticity management through gentle techniques; see stroke, MS |
| Ataxic (cerebellar) | Wide base, irregular step length, staggering, unable to walk in a straight line | Cerebellar lesion, MS, alcohol intoxication | Refer for neurological assessment; balance training; see MS |
| Parkinsonian (festinating) | Small shuffling steps, reduced arm swing, forward-flexed posture, difficulty initiating | Parkinson's disease | Trunk extensors, hip flexor release; see Parkinson's disease |
| Waddling | Bilateral trunk sway (penguin-like) | Bilateral hip abductor weakness (muscular dystrophy, bilateral hip OA, pregnancy) | Bilateral gluteus medius work; consider referral for progressive conditions |
| Vaulting | Client rises onto the toes of the stance limb to create clearance for the swing limb | Leg length discrepancy, stiff knee, foot drop | Assess for true vs. functional LLD; address underlying cause |
Translating Gait Findings Into Treatment
Framework: Deviation → Possible cause → Assessment confirmation → Treatment| Gait Deviation | Possible Muscle Involvement | Confirm With | Treatment Approach |
|---|---|---|---|
| Trendelenburg sign | Weak gluteus medius | Single-leg stance test, hip abduction RROM | Gluteus medius release (if hypertonic from compensation), strengthening exercises |
| Reduced hip extension at terminal stance | Tight hip flexors (iliopsoas, rectus femoris) | Thomas test, hip extension PROM | Hip flexor stretching, iliopsoas release, anterior hip mobilization |
| Foot slap at initial contact | Weak tibialis anterior / dorsiflexors | Heel walk test, dorsiflexion RROM | Assess for peroneal nerve involvement; anterior compartment treatment; refer if neurological |
| Knee hyperextension at midstance | Weak quadriceps (genu recurvatum compensation) | Quad RROM, single-leg squat observation | Quadriceps strengthening; address posterior chain tightness |
| Reduced arm swing unilaterally | Shoulder pathology, thoracic rotation restriction | Shoulder ROM, thoracic rotation AROM | Shoulder treatment, thoracic mobilization |
| Wide base of support | Balance deficit, cerebellar dysfunction | Romberg test, tandem walk, single-leg stance | If neurological origin: refer. If deconditioning: balance training |
Gait Assessment in Specific Conditions
- Post-ankle sprain: Look for antalgic gait, reduced dorsiflexion at initial contact, and fear-related shortened stance phase. See ankle sprain.
- Knee injuries: Look for reduced knee flexion in swing, quadriceps avoidance in stance, and compensatory hip strategies. See ACL injury.
- Hip OA: Look for Trendelenburg, compensated Trendelenburg, reduced stride length, and antalgic pattern. See hip OA.
- Stroke: Look for hemiplegic pattern (circumduction, spastic extension of the affected limb, reduced arm swing on the affected side). See stroke.
- Neurological conditions: Any new or progressive gait deviation without a clear musculoskeletal explanation warrants neurological referral.
FOMTRAC Alignment
| PC | Description | How This Article Addresses It |
|---|---|---|
| 2k | Perform gait assessment | Gait cycle phases, normal parameters, observation method, pathological patterns |
| 2i | Perform postural assessment | Gait as dynamic postural assessment; static vs. dynamic integration |
| 2a-b | Clinical assessment process | Gait assessment as part of the comprehensive assessment framework |
CMTO Exam Relevance
- MCQ: Expect 1-3 questions on gait. Common stems: "Which gait pattern is characterized by a pelvic drop on the swing side?" (answer: Trendelenburg); "A client presents with foot slap during initial contact — which muscle is most likely weak?" (answer: tibialis anterior); "What does an antalgic gait indicate?" (answer: pain on the affected side)
- OSCE: Gait assessment may be part of a lower extremity assessment station. Examiners look for systematic observation from multiple angles, correct identification of the gait cycle phase where the deviation occurs, and appropriate clinical interpretation.
- Common trap: Confusing Trendelenburg (pelvis drops on the swing side) with compensated Trendelenburg (trunk leans toward the stance side). Know both.
Key Takeaways
- The gait cycle has two phases — stance (60%) and swing (40%) — with 8 sub-phases that each reveal different muscle and joint function
- Observe from anterior, lateral, and posterior views to capture all deviations
- Antalgic gait (shortened stance on the painful side) is the most common pathological pattern in MT practice
- Trendelenburg gait indicates gluteus medius weakness — one of the most clinically relevant findings for MT treatment planning
- Any new or progressive neurological gait deviation (foot drop, spasticity, ataxia) without a clear MSK explanation requires referral