Running should be simple.
Put on your shoes, head outside, and start running.
Yet recreational runners frequently find themselves dealing with knee pain, Achilles pain, shin pain, plantar heel pain, or another problem that interrupts their training.
At Seattle Rehab Specialists, we work with runners training for everything from their first 5K to a half marathon. And many of them arrive asking the same question:
“What did I do wrong?”
Usually, there isn’t one mistake.
Running injuries are multifactorial. Research suggests training characteristics, previous health, biomechanics, recovery, and lifestyle factors can all influence injury risk.
But there are several habits we repeatedly see in recreational runners that can make successful training harder.
Here are five worth paying attention to.
Mistake #1: Increasing Everything at Once
You decide to train for a half marathon.
Suddenly you’re running farther, running more days each week, adding hills, and trying to run faster.
Your cardiovascular system may feel ready.
Your muscles, tendons, bones, and joints may not be.
This difference matters.
Your heart and lungs can improve relatively quickly. Your musculoskeletal system also adapts to training, but it needs repeated exposure and recovery.
One popular recommendation is that runners should never increase mileage by more than 10% per week.
It sounds scientific.
The problem is that research does not support a universal 10% rule for preventing running injuries.
Systematic reviews have found inconsistent relationships between specific changes in mileage, frequency, duration, and intensity and injury risk.
Instead of chasing a perfect percentage, pay attention to the total change in demand.
Adding mileage?
Maybe don’t add speed work and steep hills during the same week.
Your body doesn’t read your training spreadsheet.
It simply experiences stress.
Mistake #2: Running More When Something Starts Hurting
Runners are exceptionally good at negotiating with pain.
“It only hurts during the first mile.”
“It loosens up eventually.”
“I’ll see how it feels after my long run.”
Not every ache means you need to stop running.
But consistently ignoring symptoms isn’t a great strategy either.
Pain that progressively worsens during a run, changes your mechanics, persists afterward, or becomes worse from week to week deserves attention.
Early modifications may be relatively simple.
That might mean temporarily reducing mileage, adjusting intensity, changing terrain, or replacing one running day with another form of training while addressing the underlying problem.
The goal isn’t always stop running.
Often it’s keep running at a level your body can currently tolerate while rebuilding capacity.
Mistake #3: Thinking Running Is All the Strength Training You Need
We covered this extensively in our previous article, “Do Runners Really Need Strength Training?”
The short answer is yes.
Running requires repeatedly absorbing and producing force on one leg.
Strength training gives runners an opportunity to increase their capacity beyond what they encounter during normal running.
For recreational runners, a strength program doesn’t need to involve six days in a gym.
Two focused sessions per week can include exercises such as:
- Split squats
- Step ups
- Single-leg deadlifts
- Calf raises
- Single-leg balance and control exercises
Think of strength as creating a larger reserve.
If running requires a certain amount of force, becoming stronger may mean each individual stride represents a smaller percentage of your maximum capacity.
Mistake #4: Ignoring Recovery Because “It’s Just Running”
This is particularly relevant for recreational runners.
Professional athletes organize much of their lives around training and recovery.
You probably don’t.
Your long run may happen after a stressful workweek, poor sleep, coaching your child’s soccer game, yardwork, and five other responsibilities.
Your body doesn’t separate those stresses into neat categories.
Recovery matters.
That includes:
- Sleep
- Nutrition
- Hydration
- Easy training days
- Rest days
- Managing overall life stress
More training only works when your body has an opportunity to adapt to it.
Sometimes the smartest training decision isn’t adding another workout.
It’s recovering well enough to benefit from the workouts you’re already doing.
Mistake #5: Waiting Until Pain Stops You From Running
This may be the most important mistake on the list.
Many runners wait until they physically cannot run before seeking help.
But there is usually a period before that point when the warning signs are already present.
Maybe your Achilles is stiff every morning.
Maybe your knee hurts after mile four.
Maybe your hip aches after every long run.
You can still run, so you assume everything is fine.
Until it isn’t.
Having a problem evaluated earlier doesn’t necessarily mean someone will tell you to stop running.
A good running assessment should help determine what you can continue doing while addressing whatever is limiting you.
A Patient Story: Rachel from Green Lake
Rachel was training for her second half marathon when she developed knee pain.
Her first reaction was frustration because she felt like she had followed her training plan perfectly.
And she had.
The problem was that her training plan didn’t know anything about the rest of her life.
Rachel had recently increased her weekly mileage while also adding a weekly hill workout. At the same time, work had become busier, she was sleeping less, and she had stopped doing the strength workouts she previously performed twice per week.
No single factor was necessarily the cause.
But together, the demands had increased while her recovery and supplemental training decreased.
Our approach wasn’t to tell Rachel that running was damaging her knees or that she needed six weeks of complete rest.
Instead, we temporarily modified her running volume, reintroduced strength training, and worked on single-leg control and quadriceps capacity.
As symptoms improved, we gradually rebuilt her mileage.
Rachel returned to her training plan with a better understanding of something many runners overlook:
Your running plan has to fit your body and your life, not the other way around.
What Should Recreational Runners Do Differently?
Successful running isn’t about eliminating every possible injury risk.
That’s impossible.
Instead, build habits that make your training more sustainable.
Increase training demands thoughtfully. Strength train consistently. Pay attention to symptoms before they become major limitations. Respect recovery. And remember that a training plan downloaded from the internet doesn’t know your injury history, schedule, strength, sleep, or goals.
Those things matter.
Final Thoughts
Running injuries are rarely explained by one bad shoe, one weak muscle, or one training mistake.
Research increasingly supports a more nuanced view: running injuries are multifactorial.
That’s why simply telling every runner to increase mileage by 10%, stretch more, or buy different shoes misses the bigger picture.
At Seattle Rehab Specialists, we work with recreational runners to understand the complete picture: training history, strength, mobility, running mechanics, recovery, and goals.
Because our goal isn’t simply getting you through your next run.
It’s helping you become the type of runner who can keep running for years.
References
Esculier JF, et al. The Association Between Running Injuries and Training Parameters: A Systematic Review. Journal of Athletic Training. 2022;57(7):650-671.
Nielsen RO, Buist I, Sørensen H, Lind M, Rasmussen S. Training Errors and Running Related Injuries: A Systematic Review. International Journal of Sports Physical Therapy. 2012;7(1):58-75.
Fredette A, Roy JS, Perreault K, Dupuis F, Napier C, Esculier JF. The Association Between Running Injuries and Training Parameters: A Systematic Review. Journal of Athletic Training. 2022.
Blagrove RC, Howatson G, Hayes PR. Effects of Strength Training on the Physiological Determinants of Middle- and Long-Distance Running Performance: A Systematic Review. Sports Medicine. 2018;48:1117-1149.