Strength Training For Runners – Part 2 Of 3

runner steps

In part one of this series I explore how and why being stronger can help improve your running performance. Now we will look at the methods in which elite runners increase their force outputs, recruitment of muscle fibres and improve their tendons elastic abilities – using the calf/Achilles as the prime example.

Research has shown the link between making a muscle stronger and the decreased risk of subsequent injury – both to the muscle itself and the surrounding joints and connective tissues. If you don’t believe me check out some of these studies, click here. As if that’s not enough reason to begin strength training, performance has also been shown to improve following well structured and progressive strength training (Paavolainen et al., 1999).

Identifying your specific weaknesses is essential

The same way that not everyone responds identically to a running programme, people have different weaknesses, structural issues and injury histories. This makes blanket statements about what the best exercises are to help you irresponsible as well as inaccurate. Knowing your weaknesses and limitations is the first step on the ladder towards designing an appropriate strength programme.

That said, distance running uses the whole body with the lower leg taking most of the impact. Arguably the ankle and calf are the first link in the chain to improving performance. The calf (primarily made up of the gastrocnemius and soleus) and Achilles tendon complex (known as a musculo-tenidnous unit or MTU) provide much of the propulsive force for slower paced running.

The muscles themselves ideally contract and stay the same length just before the foot hits the ground, while the tendon lengthens and shortens – storing and returning elastic energy. Obviously this happens over and over again as you run. Increasing the ability of the muscle to contract with minimal effort makes the process more efficient and wastes less of the elastic energy.

Look after your Achilles tendons

The tendon must also be resilient, strong and durable enough to handle these forces pulling from both ends – the bony attachment in the foot, and the muscles holding it taught at the top. A common cause of injury in long distance runners is the Achilles tendon being unable to sustain this force transfer.

Like any other tissue in the body it requires progressively increasing load in order to adapt and to lay down more collagen fibres. This process takes around 36-48 hours meaning those who expose their Achilles to frequent stress and never let it recover and improve are at high risk of developing a painful tendinopathy. The major cause for concern is that it doesn’t start hurting until after the damage is done. The materials and pain receptors aren’t created and replaced until the tendon is already in a poor state of repair.

It’s not all doom and gloom! Basic calf and ankle exercises can help prevent this occurring in the first place. Calf raises can be done on both feet, one leg, knee straight or knee bent, leaving plenty of variety and room for progression.

Plyometrics are exercises that use the stretch shortening cycle (SSC) and can focus on the ankle complex or the knee or hips, or all three. Low level plyometric exercises are designed to introduce the emphasis of the ankle/calf SSC and teach the trainee to utilise the elastic energy instead of wasting energy by overusing the muscles. Stay tuned for short ‘how to’ clips of low level plyometrics and part three where I will discuss leg and trunk strength in improving running performance.

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