axidep you are right, in such an application you cannot tell everything about the technique of running. You can make a small annotation on compliance with the technique of running. Write about the most common mistakes novices. For example, do not throw your arms and legs apart while running. Etc.
Posted 04/21/2017 at 6:07 PM: Then you can add more load. Assign interval training to increase speed. For example, 300 meters at a fast pace, 200 at a normal pace. And so on.