Running involves repeated loading through the whole body. Small changes in running speed, fatigue, footwear, surface, training history and symptoms can influence how a runner moves.
A lateral-view running gait assessment focuses on the side view. This view is useful for observing sagittal-plane features such as trunk position, step length, foot strike position, knee flexion, hip extension, vertical motion and arm swing.
It may be performed using:
treadmill running
overground running
smartphone video
high-speed video
motion analysis software
structured visual checklist
The goal is not to find a single “perfect” running style. The goal is to document the runner’s current strategy and decide whether any features may be relevant to symptoms, performance, comfort or load management.
Assessment name: Running Gait Checklist: Lateral View
Category: Observation-based running assessment
View: Side view
Plane emphasised: Sagittal plane
Main purpose: Observe running mechanics from the side
Best used for: Baseline running assessment, education and reassessment
Key limitation: Lateral-view findings do not diagnose injury or prove pain cause on their own
The lateral running gait checklist is a structured way to observe running from the side.
It may include observation of:
trunk angle
head and neck position
arm swing
step length
foot strike position
overstride
tibial angle at initial contact
knee flexion during stance
hip extension during late stance
vertical oscillation
cadence
contact time impression
footwear and surface context
The checklist helps make observation more consistent and reduces the chance of missing important features.
A lateral running gait checklist is used because running symptoms often occur during repeated loading rather than during static assessment.
A runner may report:
pain during running
symptoms after a certain distance
reduced running confidence
difficulty increasing pace
calf or Achilles symptoms
knee symptoms
hip symptoms
low back symptoms
recurrent running-related flare-ups
The checklist may help professionals:
document baseline running mechanics
observe possible overstride or braking pattern
review trunk and step mechanics
compare running before and after cueing
monitor fatigue-related changes
support running education
guide further strength, mobility or load assessment
The findings should be interpreted alongside symptoms, training history, footwear, surface, strength, mobility, tissue capacity and professional judgement.
The lateral view assesses visible running mechanics from the side.
It may provide insight into:
sagittal-plane trunk position
foot strike position relative to the body
step length
tibial inclination
knee flexion strategy
hip extension
vertical motion
cadence estimate
arm swing timing
fatigue-related changes
symptom response during running
It does not directly measure:
diagnosis
tissue damage
injury risk with certainty
ground reaction forces
exact joint loading
3D hip or knee mechanics
foot pronation from the rear view
pelvic drop from the rear view
strength or mobility
readiness to return to running
The lateral running gait checklist may be useful for:
running coaches
exercise professionals
rehabilitation practitioners
strength and conditioning coaches
performance coaches
allied health support teams
movement assessment professionals
students learning running assessment
It may be relevant for runners with:
running-related pain
recurrent running flare-ups
return-to-running goals
Achilles or calf symptoms
patellofemoral pain symptoms
hip or low back symptoms
training load changes
performance goals
interest in running technique feedback
Use the lateral running gait checklist when you want to observe how the client runs from the side.
It may be useful at:
initial running assessment
return-to-running planning
footwear or surface review
cadence or step-length review
symptom provocation assessment
reassessment after cueing
progress review
fatigue-based running review
performance technique review
It is most useful when combined with posterior or front-view observation, physical testing and training-load review.
Use caution when:
running is currently unsafe or too painful
symptoms are severe or worsening
the client has acute injury or red flags
the test would exceed current running tolerance
the runner is unfamiliar with treadmill running
the professional is interpreting one video without broader context
findings are being used to diagnose injury or prescribe major technique changes
The assessment should not be used to:
diagnose a running injury
prove the cause of pain
predict injury on its own
label running form as “bad”
force one ideal running style
replace physical assessment
replace training-load assessment
clear someone for running or sport on its own
You may need:
treadmill or safe overground running space
smartphone or camera
tripod or stable camera position
adequate lighting
marked filming distance
consistent footwear
running speed record
symptom rating scale
training history notes
checklist or observation template
Optional tools may include:
slow-motion video
frame-by-frame video analysis
cadence measurement
metronome
inclinometer or video angle tool
wearable running metrics
Explain the purpose of the running video.
Example wording:
“We are going to film your running from the side to observe your current running strategy. This does not diagnose an injury, but it helps us understand how you run and whether anything may be useful to explore further.”
Record:
treadmill or overground
speed
incline
footwear
surface
warm-up duration
symptoms before running
symptoms during running
fatigue level
camera side
filming duration
For lateral view:
place the camera side-on to the runner
keep the camera level
frame the whole body if possible
avoid angled filming
use consistent distance
record several running cycles
use slow motion if available
repeat the same setup at reassessment
For treadmill running, position the camera perpendicular to the belt. For overground running, capture enough strides to observe a representative pattern.
Ask the runner to:
run naturally
avoid intentionally changing form unless asked
report symptoms
maintain the agreed speed
use their normal footwear unless the assessment is comparing footwear
stop if symptoms become unsafe or excessive
Common checklist items include:
head position
trunk lean
arm swing
step length
foot strike position
overstride impression
tibial angle at initial contact
knee flexion during stance
hip extension during late stance
heel recovery
vertical oscillation
cadence estimate
visible braking
symptom timing
Retest using the same:
speed
surface
footwear
camera position
warm-up
filming side
symptom rating
fatigue context
Changes in running form should be interpreted cautiously if testing conditions differ.
Running assessment should stay within the client’s current tolerance.
Stop or modify the test if symptoms increase sharply, gait becomes unsafe, dizziness occurs, neurological symptoms appear, or the client asks to stop.
A running gait checklist is usually recorded descriptively rather than with a universal score.
A practical rating system may classify each item as:
expected / not notable
mild observation
clear observation
unable to assess
symptom-linked observation
If using a formal checklist, follow the tool’s scoring rules.
A lateral-view finding may suggest:
a useful baseline observation
a possible movement strategy to explore
a cueing opportunity
a reason to assess strength, mobility or load tolerance
a factor to monitor with symptoms or fatigue
A finding should not be assumed to cause pain.
An unremarkable lateral view may suggest no obvious sagittal-plane feature in that condition.
It does not exclude symptoms, load intolerance, strength deficits, mobility limitations or posterior/frontal-plane findings.
A lateral running gait checklist does not prove:
diagnosis
tissue damage
pain cause
injury risk
running readiness
force production
exact joint load
need for technique change
whether one cue caused improvement
Example wording:
“Your lateral running video gives us a side-view snapshot of your running strategy today. We will interpret it alongside your symptoms, training load, strength, mobility and running goals.”
For recreational runners, the checklist may help identify simple areas to monitor, such as step length, cadence, trunk position or symptom-linked changes.
For performance runners, findings should be interpreted alongside speed, training phase, fatigue, race goals and performance demands.
For return-to-running clients, the checklist may help monitor whether mechanics change with symptoms, speed or fatigue.
For youth runners, interpretation should consider growth, coordination, training age and coaching language.
For older runners, running mechanics may reflect strength, mobility, confidence, balance, footwear and training history.
For symptomatic runners, the most useful observations are those that relate to symptom timing, load tolerance, fatigue and modifiable training variables.
A lateral running gait checklist does not usually have universal MCID or MDC values.
Meaningful change should be judged by:
repeated video comparison
symptom change
running tolerance
distance or speed capacity
confidence
training consistency
physical assessment findings
runner goals
Avoid over-interpreting small visual differences, especially if speed, fatigue, footwear or filming angle changed.
There is no single ideal lateral running pattern for every runner.
Running mechanics vary by:
speed
height
limb length
footwear
surface
fatigue
training age
sport background
injury history
strength
mobility
running goals
Practical comparison guidance:
compare the runner with their own baseline
standardise speed and filming setup
interpret findings with symptoms and training load
avoid one-size-fits-all technique rules
use comparison values only when they match the runner and context
Reliability depends on the checklist, filming setup, assessor training and whether observations are clearly defined.
Video-based running analysis can improve consistency compared with memory-based observation, especially when speed, camera view and checklist items are standardised.
Lateral video is useful for sagittal-plane features, but it cannot fully capture three-dimensional movement.
Reliability improves when:
camera setup is standardised
speed and footwear are recorded
checklist items are clearly defined
several strides are observed
slow-motion video is used
the same assessor or criteria are used at retest
findings are linked with symptoms and function
Validity is weaker when a single lateral video is used to explain pain or predict injury without broader assessment.
Common errors include:
diagnosing injury from running form
assuming one ideal running style
changing technique without symptoms or goals
ignoring training load
ignoring fatigue
using angled video
comparing videos at different speeds
over-focusing on foot strike alone
ignoring strength and mobility findings
giving fear-based feedback
Limitations include:
lateral view mainly captures sagittal-plane features
frontal and transverse-plane mechanics are limited
treadmill and overground running may differ
fatigue can change mechanics
footwear can change mechanics
observations can be subjective
exact joint loading is not directly measured
findings do not prove pain cause
A lateral running gait checklist may help professionals:
document baseline running mechanics
identify symptom-linked running features
support education
review cadence or step length
monitor changes after cueing
compare pre- and post-intervention running video
guide strength or mobility testing
support return-to-running progressions
improve communication with runners
For symptomatic runners, the checklist is most useful when combined with training history, pain behaviour, load tolerance and physical assessment.
For performance runners, it can support technique discussion without forcing one universal running model.
It assesses side-view running mechanics, including trunk position, step length, foot strike position, knee flexion, hip extension and vertical motion.
No. It can support assessment reasoning but does not diagnose injury or prove pain cause.
No. Running mechanics vary between individuals and should be interpreted in context.
Lateral video is useful for sagittal-plane features, but posterior or front views may be needed for other observations.
No. Foot strike should not be changed automatically. Any change should relate to symptoms, goals, load tolerance and professional reasoning.
Record speed, surface, footwear, camera setup, warm-up, symptoms, fatigue and key observations.
Yes, but treadmill running may differ from overground running, so this should be recorded.
Reassess when symptoms, training load, technique cues or return-to-running goals make comparison useful.
The lateral running gait checklist reviews side-view running mechanics.
It is useful for observing sagittal-plane features such as trunk position, step length, foot strike and knee motion.
It does not diagnose injury or prove pain cause.
There is no single ideal running form for every runner.
Video setup, speed, footwear and fatigue must be standardised for comparison.
Findings are strongest when combined with symptoms, training load, strength, mobility and runner goals.
Adler, R. (2023). Clinical approach to running gait analysis. UNC Sports Medicine Institute.
Dingenen, B., & Gokeler, A. (2017). Optimization of the return-to-sport paradigm after anterior cruciate ligament reconstruction: A critical step back to move forward. Sports Medicine, 47(8), 1487–1500. https://doi.org/10.1007/s40279-017-0674-6
Heiderscheit, B. C. (2011). Gait retraining for runners: In search of the ideal. Journal of Orthopaedic & Sports Physical Therapy, 41(12), 909–910. https://doi.org/10.2519/jospt.2011.0110
Implementation of 2D running gait analysis in orthopaedic physical therapy clinics: Appendix 1 running gait checklist. International Journal of Sports Physical Therapy.
Souza, R. B. (2016). An evidence-based videotaped running biomechanics analysis. Physical Medicine and Rehabilitation Clinics of North America, 27(1), 217–236. https://doi.org/10.1016/j.pmr.2015.08.006
