What are shin splints?
Shin splints - medically known as medial tibial stress syndrome (MTSS) - refers to pain along the inner edge of the shin bone (tibia). It's caused by inflammation of the muscles, tendons, and the periosteum (the tissue covering the bone) along the tibia, resulting from repetitive impact loading and the traction of the lower leg muscles pulling on the bone.
The condition is particularly common in runners who have recently increased their mileage, changed their running surface, or returned to training after a break. It can range from a dull ache that warms up during a run to sharp, debilitating pain that stops activity entirely. Left unmanaged, shin splints can progress to a tibial stress reaction or stress fracture - which is why early intervention matters.
Understanding shin splints
Causes and contributing factors
- A sudden increase in training volume, intensity, or frequency without adequate adaptation time
- Running on hard surfaces, particularly concrete, road, or astroturf/4g
- Overpronation or flat feet, which change the rotational load on the tibia during the gait cycle
- Worn running shoes lacking adequate cushioning or arch support
- Weakness in the calf, hip, or glute muscles leading to poor shock absorption
- Returning to training too quickly after a period of inactivity
Symptoms to recognise
- A dull ache or sharp pain along the inner border of the shinbone, particularly during or after running
- Tenderness when pressing along the inner tibia, typically over a diffuse area rather than a single point
- Pain that is worst at the start of a run, may ease mid-run as the tissue warms, then worsens again afterwards
- Stiffness in the lower leg after rest, particularly in the morning
- In severe cases, pain during walking or normal daily activity
How Bearhug helps
The Bearhug calf support delivers graduated compression along the lower leg, reducing the muscle vibration during impact that is one of the primary drivers of shin splint pain. When the calf muscles oscillate during running, they place repeated traction on their attachments along the tibia - compression reduces this oscillation, reducing the stress transmitted to the bone and surrounding periosteum.
Compression also improves blood flow to the lower leg, reducing the inflammation that drives ongoing pain and accelerating the delivery of oxygen and nutrients to recovering tissue. Wearing the calf sleeve both during and after activity helps manage the condition without requiring complete rest from training, allowing runners to maintain fitness while the tissue heals.
For runners managing shin splints, reducing training load and surface hardness is also important alongside compression. Calf and hip strengthening exercises - particularly eccentric calf raises and single-leg work - address the underlying loading issues that caused the problem.
The information on this page is provided for general guidance only and does not constitute medical advice. If you are experiencing pain or injury, please consult a qualified healthcare professional for a proper diagnosis and treatment plan. Bearhug products are Class 1 medical devices designed to support - not replace - medical treatment.