Achilles Tendinopathy/Tendinitis | Education and GuidanceUpdated 10 days ago

What is Achilles Tendinopathy/Tendinitis?

The Achilles tendon connects your calf muscles to your heel bone and is one of the strongest tendons in the body. Achilles tendinopathy is a load-related tendon condition that develops from repeated stress or overload. When the tendon is asked to handle more than it's currently conditioned for, the tissue gradually breaks down.

Despite being commonly called tendinitis, Achilles tendinopathy is not primarily an inflammatory condition. The tissue has not failed to heal. It has healed poorly, producing disorganised tissue that cannot tolerate normal load.

A common pattern is pain or stiffness that is worst in the first few steps after rest, eases as the tendon warms up during activity, and then returns again afterward, this warm-up and cool-down pattern is one of the most recognisable signs that the Achilles tendon is involved. Additionally, Achilles tendinopathy typically causes pain, stiffness, and sometimes swelling at the back of the ankle,  It occurs in two locations:

• Mid-portion: Pain in the middle of the tendon, a few centimetres above the heel
• Insertional: Pain where the tendon meets the heel bone

These two types look similar but behave differently, which is worth knowing because the approach to each one varies.

What causes Achilles Tendinopathy?

The most common cause is asking the tendon to handle more load than it's currently conditioned for. Contributing factors include:

• Sudden increases in training or activity: Ramping up volume or intensity too quickly is one of the most common triggers.
• Weak or stiff calf muscles: When the calf can't absorb load well, more stress transfers directly to the tendon.
• Poor ankle mobility: Reduced range of motion or too much range of motion changes how force is distributed through the lower leg.
• Foot posture and movement patterns: How the foot loads and moves influences the demand placed on the Achilles with every step.
• Footwear with a raised heel: Elevating the heel shortens the calf over time and reduces the ankle's natural range of movement.
• Metabolic conditions: Diabetes and high cholesterol are associated with tendon changes and slower recovery.

What can you do?

• Work with a trained professional: The two types of Achilles tendinopathy respond to treatment differently, so an accurate diagnosis is important. A trained professional such as podiatrist or physiotherapist can confirm what you're dealing with and build a program tailored to you
• Be cautious with stretching: Calf and Achilles stretching is not a recommended approach for this condition, and can aggravate insertional Achilles pain in particular. Loading-based exercise, not stretching, is the appropriate direction.
• Keep moving at the right level: Tendons generally respond better to the right amount of graduated activity rather than to doing nothing. Reduce the activities that aggravate it, but don't stop moving altogether.
• Restore calf and ankle strength and mobility: improving range of motion and strength through the calf and ankle reduces strain on the tendon and is often a key part of recovery
• Address foot function: Building foot strength, mobility, and coordination can change how load is distributed through the lower leg, reducing the demand on the Achilles over time
• Transition footwear gradually: Footwear has a long-term influence on the Achilles tendon. Shoes with a raised heel shorten the calf and reduce ankle mobility over time, however in the initial stages of a tendinopathy, they may be useful. Transitioning to flatter footwear across time can improve long-term function, but this needs to be done slowly to avoid overloading the tendon during the process.

Where TFC starts with foot function

Feet are designed to be strong and stable, mobile and adaptable, sensitive and responsive. Most people have spent decades in footwear and environments that work against all three. TFC's approach focuses on five fundamentals. They apply to every person, regardless of starting point.

Circulation: Movement drives blood flow through the foot. Feet that spend years in rigid, cushioned shoes receive less of it. The first step is simply getting the foot moving more, so the tissues and structures get what they need to function well.

Sensation: The foot is primarily a sensory organ. It reads the ground and feeds that information to your nervous system, which uses it to organise every movement you make. Feet insulated from natural surfaces over time become hypersensitive to them. Graduated exposure to texture and varied ground gradually rebuilds that sensitivity.

Mobilisation: There are 33 joints in each foot, and joints exist for movement. Modern footwear and inactive environments restrict many of them. Targeted mobility work restores the range of motion the foot was built to express.

Coordination: Range of motion needs to be controlled to be useful. Coordination is the foot responding to load and varied surfaces automatically, without conscious effort. It starts with focused practice and becomes subconscious over time.

Integration: The foot does not work in isolation. Every step integrates it with the ankle, knee, hip, and the rest of the body. Building foot function means working toward that full integration, not just isolated strength or flexibility.

TFC's free training library on YouTube: https://www.youtube.com/watch?v=O51AY5yABWQ

TFC's free training library on YouTube covers each of these fundamentals and includes a routine you can start with today.

Looking for hands-on support?

Our practitioner directory connects you with professionals who understand and apply TFC's approach to foot health. This article is general in nature. For guidance tailored to your situation, a practitioner from our directory is a great next step.

Find a practitioner at thefootcollective.com/pages/tfc-pro-directory