Why Your Knee Hurts When You Run
Every spring in Vancouver, many runners begin increasing their mileage while preparing for events such as the Vancouver Sun Run or the BMO Vancouver Marathon. Others may be returning to running after winter, training for destination races in Hawaii, or working toward longer-term goals such as qualifying for the Boston Marathon.
It is also often around these periods of increased training that knee pain begins to appear.
For some people, symptoms develop gradually during longer runs or hill training. Others notice discomfort when increasing speed work, returning after time away from running, or balancing training alongside work, family, and recovery demands.
Knee pain is one of the most common issues experienced by runners and active individuals.
For many people, symptoms are not caused by a single isolated structure alone. Instead, knee pain is often influenced by how the knee and surrounding tissues tolerate repetitive loading over time.
Understanding the broader factors contributing to symptoms is often an important part of recovery.
Why Running Places Repetitive Demands on the Knee
Running involves repeated loading through the hips, knees, ankles, and feet.
Over time, the body adapts to these demands through:
strength
endurance
tissue capacity
recovery
movement efficiency
Problems may develop when the demands placed on the body exceed what the tissues are currently prepared to tolerate.
This does not necessarily mean something is “damaged,” but it may mean the knee is becoming overloaded relative to current capacity.
Common Factors That May Contribute to Knee Pain
Knee pain during running is often influenced by a combination of factors rather than a single cause.
These may include:
sudden increases in running volume or intensity
changes in terrain, speed, or hills
insufficient recovery between sessions
strength and endurance deficits
changes in movement patterns at the hip, knee, ankle, or foot
previous injury history
footwear changes
reduced variability in training or movement demands
Symptoms may also fluctuate depending on stress, sleep, fatigue, and overall recovery.
Training Goals and Real-Life Running Demands
Many runners notice symptoms only once training volume reaches a certain threshold, while others experience discomfort during return-to-running after previous injuries or interruptions in training.
For many people, the challenge is not simply running itself, but balancing training demands alongside the realities of everyday life, recovery, sleep, stress, and workload.
In many cases, symptoms develop during periods of:
increased mileage
reduced recovery time
hill training or speed work
balancing training with work and family demands
trying to progress too quickly after time away from running
Common Types of Running-Related Knee Pain
Symptoms may include:
pain around or behind the kneecap
pain with stairs, hills, or squatting
tendon-related pain below the kneecap
stiffness after running
irritation during longer distances
discomfort during return to running after injury
In some cases, symptoms improve quickly with reduced activity but return again once running volume increases.
This often suggests that load tolerance and recovery strategies may need to be addressed as part of rehabilitation.
Why Rest Alone Does Not Always Solve the Problem
Many runners initially respond to knee pain by stopping activity completely.
While short-term reduction in aggravating activity may sometimes help calm symptoms, complete rest alone does not always improve the body’s ability to tolerate running long term.
In many cases, rehabilitation focuses on:
gradually improving tissue capacity
restoring strength and endurance
improving tolerance to repetitive impact
modifying training load appropriately
supporting gradual return to running
The goal is often not simply avoiding pain, but improving the body’s ability to handle running demands more effectively over time.
What Physiotherapy May Focus On
Assessment and rehabilitation may involve:
understanding running history and training demands
identifying contributing movement and loading factors
assessing strength, mobility, and endurance capacity
improving running tolerance progressively
developing graded return-to-running strategies
Treatment may also incorporate:
exercise-based rehabilitation
movement retraining
education around recovery and load management
manual therapy
intramuscular stimulation (IMS) where clinically appropriate
These approaches are integrated when clinically appropriate as part of an individualized rehabilitation plan.
Running and Long-Term Movement Confidence
For many people, recovery is not only about reducing pain.
It is also about:
returning to meaningful activity
improving confidence with movement
reducing recurrence risk
maintaining long-term participation in running and exercise
With appropriate progression and rehabilitation, many runners are able to return gradually to activity while improving overall movement capacity and resilience.
Practical Considerations for Runners
Some strategies that may help include:
avoiding sudden spikes in running volume
allowing adequate recovery between harder sessions
varying terrain and training intensity
improving strength and endurance capacity
monitoring symptoms rather than reacting to every fluctuation
gradually progressing activity tolerance over time
Small adjustments performed consistently are often more effective than searching for a single perfect exercise or technique.
Related Articles
Learn more:
Understanding tendon pain and load tolerance
Hip pain when sitting or driving
Returning to running after injury
Related Conditions
tendon-related pain
running-related overuse injuries
What To Do Next
If knee pain is persistent, recurring, or affecting running, exercise, work, or everyday activity, a structured assessment can help identify contributing factors and guide rehabilitation strategies.
