Training for a Spring Marathon Without Getting Injured (and How to Return to Running After a Layoff)

The BMO Vancouver Marathon runs in early May, which means the serious training happens through a Metro Vancouver winter and spring. That is a lot of dark, wet, hilly kilometres, and it is where most preventable running injuries are built. The good news is that the decisions that lower your risk are fewer and simpler than the internet suggests.

The decisions that apply to every runner building toward a spring race are the same ones that decide whether the block holds together: how to progress mileage, which injuries to watch for, how to manage load and recovery, when a niggle is safe to run through, and how to get back after a layoff. Each specific injury links out to its own detailed post below.

How much running injury is normal, and where it comes from

Running injury is common enough that most people building serious mileage will meet one eventually. A systematic review in the Journal of Athletic Training pooled 36 studies and 23,047 runners and reported running-related injury rates ranging widely by group, with a weighted average around 26% in recreational runners and higher in competitive runners (Kakouris and colleagues, Journal of Athletic Training, 2022). The wide range tells you something useful: injury risk is not fixed, and a lot of it tracks with how the training is built rather than the sport itself.

Most running injuries are load problems. The tissue is asked to do more than it is currently ready for, either too much at once or too much for too long without recovery. That framing matters because it points at the levers you actually control: how fast you add volume, how you space hard efforts, and how you respond to early symptoms.

The "10 percent rule" is a reasonable habit, not a law

You have probably heard that you should not increase weekly mileage by more than 10 percent. It is a sensible instinct, but the direct evidence behind that specific number is weaker than its popularity suggests. A randomized controlled trial of 532 novice runners compared a graded programme built on the 10 percent rule against a standard programme and found essentially no difference in injury rates, at roughly 20.8% versus 20.3% (Buist and colleagues, American Journal of Sports Medicine, 2008). A separate systematic review of training-load changes concluded there was very limited evidence for the 10 percent rule as a threshold, while noting that some studies suggested increases above roughly 30 percent may carry more risk than smaller ones (Johnston and colleagues, International Journal of Sports Physical Therapy, 2018).

The practical read is to treat gradual progression as a good default, not a rule to follow to the decimal. The useful principle underneath it is to avoid sudden, large jumps, especially a single much longer or much harder session dropped into an otherwise steady week. Build most weeks modestly, hold volume steady every third or fourth week to let tissue catch up, and be more cautious with the size of any single jump than with the exact weekly percentage.

The five running injuries worth knowing before they start

Most marathon-build injuries fall into a short list, and each has a recognisable pattern. Knowing the pattern lets you act early rather than after you have lost weeks.

Patellofemoral pain, often called runner's knee, is a diffuse ache around or behind the kneecap that worsens with hills, stairs, and sitting for long periods. First-line management is exercise that loads the hip and knee together, supported by load management and sometimes running-form adjustments, per the patellofemoral pain clinical practice guideline (Journal of Orthopaedic and Sports Physical Therapy, 2019). We go deeper in our post on rebuilding through patellofemoral pain.

Iliotibial band syndrome shows up as sharp pain on the outside of the knee, usually at a predictable point in a run and often worse downhill. It is covered in our IT band syndrome post. Tibial stress problems and shin splints, more formally medial tibial stress syndrome, present as aching along the inner shin, and the distinction between a manageable strain and a stress reaction matters a great deal, which we unpack in our shin splints post. Achilles tendinopathy is pain and stiffness in the tendon, typically worst on the first steps in the morning and at the start of a run. Current guidance treats loading the tendon, as hard as it can tolerate, as the first-line approach (midportion Achilles tendinopathy clinical practice guideline, Journal of Orthopaedic and Sports Physical Therapy, 2024); our Achilles loading post walks through it. Plantar fasciitis, heel pain that is sharpest with the first steps of the day, rounds out the list.

The common thread is that four of these five are gradual-onset, load-related complaints. That is exactly why catching them early, when they are a mild ache rather than a limp, changes how long they take to settle.

Load and recovery are the same conversation

Runners tend to think about training and recovery as separate. They are not. The training load only produces adaptation if the tissue gets enough recovery to rebuild stronger, so a plan that adds mileage without protecting sleep, easy days, and rest days is not a harder plan, it is a riskier one.

In practice that means most of your running weeks should feel comfortable, with a small number of harder sessions rather than a grind of moderately hard runs. It means keeping at least one full rest day, and it means treating a poor night's sleep or a stressful week as a reason to ease a session rather than push through. Strength work twice a week, aimed at the hips, calves, and feet, supports the tissues most running injuries involve, and it is best built in the base phase rather than bolted on late. This is off-court, off-road work that a physiotherapy assessment or a running assessment can shape around your specific weak points.

When a niggle is safe to run through, and when it is not

Not every ache means stop. The practical question is whether the tissue is tolerating the load or being overloaded, and there are a few signals we watch for.

A niggle that stays mild, does not get worse as the run goes on, and settles by the next morning is usually a signal to hold your current volume steady rather than to stop entirely. Pain that climbs during a run, changes your stride, or is clearly worse the following day is the tissue telling you the load was too much. Two patterns deserve a firmer line. Pain that is sharp and localised to a single point on a bone, especially the shin or foot, and worsens with impact can suggest a stress reaction, and running through that is how a small problem becomes a fracture. And any pain that makes you limp or alter your gait is a reason to stop that run, because a compensating stride tends to create the next injury.

If a symptom keeps returning in the same spot with the same movement, session after session, that is a loading problem a rest day alone will not fix. That is the point to have it assessed rather than to keep testing it. Our individual injury posts above describe what that looks like for each specific complaint.

Returning to running after a layoff is staged, not scheduled

The single most common return-to-running mistake is treating time off as the qualifier. Two weeks off does not mean you resume at your old mileage. Capacity fell while you were out, and the plan has to rebuild it in steps, guided by how the tissue responds rather than by the calendar.

A staged return works off load tolerance and symptom response, not a fixed timeline. In practice that usually means starting well below your previous volume, often with a walk-run pattern, finding the amount you can do without symptoms during the run and without a flare the next day, then adding small amounts while changing only one variable at a time, distance or pace or hills, never several at once (Returning to running after injury, running-physio.com). The 24-hour response is the umpire: if the tissue is the same or better the next morning, the load was acceptable; if it is clearly worse, the last step was too big and you drop back. Some soreness is allowed, a limp or a next-day flare is not.

Because timelines depend on the tissue involved, the injury's irritability, your baseline fitness, how much time you have before the race, and your history of prior episodes, we do not publish a fixed number of weeks to return. A physiotherapist can test the movement directly and build the steps around your findings. Coverage and booking details are on our rates and FAQ page, and any of our five studios can screen a running injury or plan a return.

The Metro Vancouver detail that changes the plan

Local conditions matter here in a few specific ways. Winter and early-spring training means dark, wet roads, so traction and footing become a real variable, and slick surfaces raise the cost of a misstep on already-loaded tissue. The other local factor is hills. Vancouver's terrain and the marathon route's rolling sections load the knees and Achilles differently than flat running, and downhill running in particular is hard on the front of the knee and the calf-Achilles complex. If you are building for a hilly spring race, introduce hill volume gradually as its own progression rather than assuming flat mileage prepares you for it.

The strongest outcomes we see are not from runners who train the hardest. They are from runners who progress patiently, respect the 24-hour response, and get a nagging symptom looked at while it is still small. If you are building toward a spring marathon and something is not settling, book an assessment and we will help you keep training rather than lose the block.

This article is general information, not personal medical advice. A regulated practitioner can confirm whether the patterns described apply to you.

Frequently asked questions

Is the 10 percent rule for weekly mileage actually backed by evidence?

Not strongly. A randomized trial found a programme built on the 10 percent rule produced about the same injury rate as a standard programme, and a systematic review found very limited evidence for that specific threshold. Treat gradual progression as a sensible default and avoid large single jumps, rather than following the number to the decimal.

What are the most common marathon-training injuries?

Patellofemoral pain (runner's knee), iliotibial band syndrome, medial tibial stress syndrome (shin splints), Achilles tendinopathy, and plantar fasciitis. Four of the five are gradual-onset, load-related problems, which is why catching them early makes them easier to settle.

Can I keep running through knee or shin pain?

Sometimes. A mild ache that does not worsen during the run and settles by the next morning is often a signal to hold your volume steady. Sharp, localised bone pain that worsens with impact, or any pain that makes you limp, is a reason to stop and have it assessed.

How soon can I return to running after an injury or time off?

It depends on the tissue, the injury's irritability, your fitness, and your history, so there is no fixed number of weeks. A staged return is guided by how much you can do without a next-day flare, starting low and progressing one variable at a time.

Should I use a walk-run approach coming back from a layoff?

Often, yes. A walk-run pattern lets you find a starting load you can tolerate without symptoms during the run or the following day, then build from there in small steps.

When should I see a physiotherapist rather than manage it myself?

When a symptom keeps returning in the same spot with the same movement, when pain changes your stride, or when you are not sure whether a niggle is safe to train through. A running assessment can test the movement directly and build a plan around your findings.

Sources

• Kakouris N, et al. A systematic review of running-related musculoskeletal injuries in runners, Journal of Athletic Training (2022)
• Buist I, et al. No Effect of a Graded Training Program on the Number of Running-Related Injuries in Novice Runners: A Randomized Controlled Trial, American Journal of Sports Medicine (2008)
• Johnston R, et al. Is there evidence for an association between changes in training load and running-related injuries? A systematic review, International Journal of Sports Physical Therapy (2018)
• Patellofemoral Pain: Clinical Practice Guidelines, Journal of Orthopaedic and Sports Physical Therapy (2019)
• Midportion Achilles Tendinopathy Revision, Clinical Practice Guidelines, Journal of Orthopaedic and Sports Physical Therapy (2024)
• Returning to running after injury, running-physio.com