You’re Running More, and Your Shins Are Screaming
Shin splints are the price many runners pay for ambition. You follow a sensible plan, your fitness is improving, but then that dull ache along the inside of your shin shows up during a run—or worse, it’s waiting for you before you even lace up. You’re not broken. You’re not weak. But you’ve hit one of running’s most common obstacles, and it’s completely preventable if you know what to do.
The frustrating part is that shin splints usually show up when you’re doing everything right—building mileage, getting consistent, genuinely improving. It’s not a sign you should quit. It’s a sign you need to be smarter about how fast you’re adding volume.
Shin splint pain (medial tibial stress syndrome, if you want the clinical name) happens when the muscles and tendons around your tibia get irritated from excessive load. The good news: knowing why it happens gives you the tools to prevent it.
The 10% Rule Isn’t Just a Cliché—It’s Your Foundation
You’ve probably heard this before, but the reason it’s repeated constantly is because it works. Increase your weekly mileage by no more than 10% from one week to the next. If you’re running 40 km (25 miles) a week, next week should be around 44 km (27 miles), not 50 km (31 miles).
Here’s the reality: your bones, tendons, and muscles adapt at different rates. Your aerobic system improves fast—you’ll feel stronger after just a few weeks. But your connective tissue needs time. When you jump mileage too quickly, those tendons around your shin are still in “last week’s fitness” mode while your brain is telling you to run faster and further. That’s when pain arrives.
If you’re coming back from a break or starting training fresh, the 10% rule is even more critical. Don’t let enthusiasm override progression. Two weeks of sensible building feels slow until week three, when you realise you’re genuinely stronger without pain.
Separate Your Easy Runs from Your Fast Work
One of the biggest mileage mistakes is making too many of your runs “medium-hard.” You know the pace I mean—not quite easy, not quite a workout, just consistently tense and demanding. This is brutal for shin splints because you’re constantly loading your tibia under tension.
Here’s the split that protects your shins:
- Easy runs: 5:30–6:30/km (8:50–10:30/mile). You should be able to hold a conversation. This pace feels slow, but it’s where adaptation happens safely.
- Long runs: Same easy pace, just built up gradually—start at whatever distance feels comfortable and add 1–2 km (0.5–1 mile) weekly.
- Interval or tempo work: One session a week, on non-consecutive days. This is where you do 5–8 × 800m at a harder pace, or a 20-minute tempo run. Quality over quantity.
- Recovery runs: If you do a second run on a workout day, keep it genuinely easy—slower than your easy pace if needed.
The magic is that 80% of your running should be easy. Your shins thrive on this approach because you’re building volume without constantly battering the same tissues.
Strength Work That Actually Matters for Shin Health
Your shins don’t care how fast you ran last Tuesday. They care about whether the muscles supporting your tibia are strong enough to stabilise your leg. Weak hips, weak glutes, weak ankles—all of these force your shin muscles to work overtime.
Two sessions a week of targeted work prevents problems:
- Single-leg calf raises (3 × 12 each leg): Stand on one leg, rise up on your toes slowly. This builds the muscles along the back of your shin.
- Shin taps or toe walks (2 × 20 steps): Walk on your heels with toes pointed up. This targets the muscles on the front of your shin—the ones taking the biggest load.
- Glute bridges (3 × 15): Lie on your back, feet flat, push through your heels to lift your hips. Strong glutes reduce the mechanical stress on your shins.
- Single-leg balance work (3 × 30 seconds each): Stand on one leg while brushing your teeth or scrolling. Your ankle stabilisers get stronger, which supports your entire shin.
- Calf stretching (hold 30 seconds, 3 × each leg): Tight calves pull on your shin tendons. Stretch them daily, especially after runs.
Do these twice a week. You’ll notice the difference in 3–4 weeks.
Running Surface Matters More Than You Think
Asphalt, concrete, and track have very different effects on your shins. Hard surfaces like concrete force your leg to absorb impact more suddenly, which increases stress on the tibia. Softer surfaces—grass, dirt trails, synthetic track—allow for more give.
Here’s a practical strategy: if you’re building mileage and worried about shin splints, do at least one run a week on a softer surface. You don’t need to change your entire routine. Just one easy run on grass or a trail takes pressure off your shins while maintaining your fitness.
Tracks are genuinely gentler than roads, even though they feel less “real.” If access to a track isn’t an option, prioritise grass. Concrete is the worst offender—avoid it if you’re in a vulnerable window of mileage increases.
Watch Your Foot Strike and Cadence
The way your foot lands matters. A heavy, overstriding foot strike (landing far in front of your hip) sends shock directly up your leg, right through your shins. A quicker cadence naturally shortens your stride and reduces this impact.
Aim for a cadence around 170–180 steps per minute. If you’re landing heavily, you might be closer to 160. A simple fix: use a metronome app or music at that tempo, and focus on landing under your body rather than in front of it.
This isn’t about revolutionary technique change. It’s about small adjustments that reduce load on the tibia. Your shins will feel the difference within a week or two.
Listen Early—Really Early
This is the part where honesty matters. If you feel the first hint of shin pain, don’t run through it. The difference between “I felt a twinge” and “I’m nursing shin splints that derailed my training for 8 weeks” is usually 3–4 runs.
As soon as you notice something, take 2–3 days off. Use that time to:
- Ice the area for 15 minutes after activities (ice, then 15 minutes off, repeat).
- Foam roll your calf gently.
- Do extra glute and hip strengthening.
- Reduce mileage by 20% when you return.
Catching it early means a 3-day break instead of 3 weeks. Your ego will hate the pause, but your training block will thank you.
The Honest Takeaway
Shin splints aren’t a sign you’re pushing too hard—they’re a sign you’re pushing unevenly. A 10% mileage increase, paired with strength work and smarter pacing, prevents most cases. Do your easy runs genuinely easy. Build one strength session into your week. And listen to your body the moment something feels off.
The runners who avoid shin splints aren’t the ones who run the most. They’re the ones who run smart: gradual, supported, and without ego. Your future self—the one crossing the finish line of your first half marathon—will thank you for taking the three extra weeks now to build properly.
Next read: Dealing with injury setbacks? Learn why rest days matter: /the-importance-of-recovery-weeks-in-marathon-training