Great so you have assessed your shoulders, looked at your running technique and found that you are twisting.
Maybe you just have tight shoulders from sitting at a desk all day! Either way you need to manage it better and these simple exercises – 2 only – will really help you get on top of the problem.
First release the restriction – how to effectively release the tightness in your pec minor (front of the chest area) is the first step.
However you must get the correct muscle working too otherwise your body will return to the same posture in the next 30 minutes. That is why stretching becomes a never ending cycle.
So complete phase 2 and get strengthening your lower & mid traps (between your shoulder blades) and build stabilty to prevent the problem returning.
Happy running – especially in this wonderful weather.