Shin Splints: Rebuilding Running Load, Not Resting
Most runners searching for shin splints treatment in Sydney's Inner West have already tried the obvious thing: two weeks off. The pain settles. They go back to their usual 5km loop around Bay Run, and by the third or fourth run the same ache along the inside of the shin is back. Rest lowers the load. It doesn't raise the tibia's tolerance for load, and that gap is usually why the problem keeps returning.
What "shin splints" usually means
Shin splints is a description, not a diagnosis. In runners it most often refers to medial tibial stress syndrome: diffuse pain along the lower two thirds of the posteromedial border of the tibia, sore to press over several centimetres, worse as a run goes on, easing with rest.
It sits on a continuum of bone stress. At the mild end, the bone is remodelling and irritable. At the far end sits a tibial stress fracture, where pain becomes focal, sharper, and starts showing up during walking or at night. Tibial stress fractures are managed very differently, and anterior tibial pain in particular warrants careful assessment because of the way that part of the bone loads.
Other things produce shin pain and get labelled the same way. Chronic exertional compartment syndrome gives a tight, building pressure with numbness or foot slap that stops within minutes of stopping. Tibialis posterior and soleus problems refer along a similar line. Sorting out which one you have changes the plan, so it's the first job.
How we assess shin pain
An assessment starts with your training history in detail: weekly kilometres over the last two months, how quickly they climbed, surface changes, new shoes, added hill or interval work, plus any recent jump in football or netball training on top of running. Bone stress injuries almost always trace back to a change in load rather than a single moment.
Then the physical side. Palpation along the tibial border to map where the pain sits and how broad it is. Single leg hop and heel raise tests to see what provokes it and how many calf raises you can produce before failure. Ankle dorsiflexion range, foot posture under load, hip and calf strength. We watch you run, on a treadmill, looking at cadence, stride length, how much vertical movement you have and where your foot lands relative to your body.
Energy availability matters here too, especially in younger athletes and in anyone who has dropped weight while training hard. If the picture points toward a stress fracture, we'll refer for imaging and coordinate with your GP or sports physician rather than guess.
Where reduced body weight running fits
An anti-gravity treadmill works by sealing you into an air-pressurised chamber from the waist down and lifting a set percentage of your body weight. Set it at 70% and every step lands with roughly 30% less of you behind it. Your running pattern stays a running pattern; the force through the tibia with each footfall drops.
That's useful with bone stress because the variable you most need to control is impact load, and the thing you least want to lose is running-specific movement, cadence and fitness. Instead of six weeks of aqua jogging followed by an abrupt return to the footpath, you can keep running at a load your shin tolerates and step the unweighting down over time as tolerance improves.
How far the unweighting goes, how long the intervals run and how quickly the percentage climbs depends on your symptoms, your imaging if you've had it, and what the shin does in the 24 hours after each session. There's no fixed formula, and progression is guided by your response rather than a calendar.
What a session looks like
You wear your own running shorts with the neoprene shorts that zip into the machine. Getting set up takes a couple of minutes: step in, zip the skirt, let the chamber calibrate, then the display shows body weight percentage and speed.
A typical early session might be short run intervals at a substantial level of unweighting, with walking recovery, while we watch cadence and how the shin feels through each block. Later sessions look more like normal running: longer continuous blocks, higher percentage body weight, some pace variation. We track what you did each session so the progression is written down, not remembered.
Between sessions you're usually running outdoors as well, at whatever volume the shin is handling, plus strength work.
The strength and gait side
Calf capacity does a lot of the shock absorption below the knee, and it's commonly well short in runners with shin pain. Heel raise variations, loaded slowly and progressed to high reps and then to single leg work, are a standard part of the plan. Add hip and trunk work if your running assessment showed pelvic drop or a heavily crossed-over stride.
Cadence adjustments can reduce how far your foot lands ahead of your hips. Small changes, around 5 to 10 steps per minute, are easier to hold than dramatic gait overhauls. Shoe choice and rotation get a look, particularly if the pain arrived alongside a switch to something with less stack height.
When to get it looked at
Book an assessment if shin pain has lasted more than two weeks, returns each time you build back up, hurts when you walk, wakes you at night, or is focal enough that you can cover it with one fingertip. Under-18 athletes running high volume through a growth spurt should be seen sooner rather than later.
If you'd like your shin pain and running load assessed, and to see whether reduced body weight running suits your case, you can book an assessment at our Inner West clinic.