Thursday, 15 December 2011

Calf talk…Do you know your Soleus from your Gastrocnemius?

Did you know that you have two calf muscles, the Soleus and the Gastrocnemius?  They are both serviced by the same tendon – the calcaneal tendon.  This tendon is the strongest and thickest tendon in the entire body! 

Were you aware that the two muscles need to be stretched separately for optimum function?  The Soleus tends to be neglected as many people are aware of the classic Gastrocnemius calf muscle stretch.  To stretch the Gastrocnemius, one foot is placed behind the body with a straight knee, whilst the forward leg adopts a bent knee position.  To stretch the Soleus, adopt this pose and then bend the back knee by 5 degrees (play about with the position until you feel a gentle stretch).  I will cover best practice for stretching in another article.

The Soleus muscle is larger than the Gastrocnemius.  You can feel the Soleus’ sides bulging out just behind the Gastrocnemius.  Tightness in these two muscles can contribute to a whole host of problems developing – including tightness in the connective tissue under the foot (the plantar fascia), tendonitis in the Achilles tendon, muscle tears and Achilles tendon rupture. 

As a Marathon runner, one should keep these two calf muscles happy by ensuring they are adequately warmed up pre activity, stretched adequately and appropriately post activity, that running shoes do not dig in to the heels (Achilles tendon region), that training runs build up in intensity and mileage gradually, that terrain changes are factored in gradually and that competition terrain is incorporated during training where possible.   Adding steep hills suddenly in to your running programme could aggravate the Achilles tendon severely.

The main job of these two muscles is to point the toes downward from the heel (plantar flex the foot).  The Gastrocnemius also helps flex the knee.  If you can keep these guys happy, your running will benefit greatly! 

It’s bye from me for now, but I’ll be catching you soon with some Marathon Stretching Tips. Don't forget to join me at LSM for updates and special offers.