Check out the images above: These are before/after pictures taken after the runner did a gait analysis and then embarked on some smart training.
In the picture on the left, imagine the amount of stress on the hamstring muscle in the left leg as it would attempt to lessen how much the hip is dropping on the right. This is tissue compensation in action! It is almost as though the hamstring is trying to “grab” the area above it to keep it from moving too much.
In the picture on the right, because the hips and core are more stable, there is less need for the hamstring muscle to compensate. As a result, the tightness which existed (that was only because of the compensation) simply goes away.
Food for thought! This is a good reminder that injury-free running requires every body part doing its job.
It’s not about where the pain or sensations are felt. When it comes to the hamstring muscles, it is often much more about what is causing the sensations in the first place!