Understanding exercise principles allows trainers to monitor the stress (exercise load) placed upon their client in order to make the training safe and effective, helping the client to achieve their goals. So let's take a look at the principles, their definitions and what they actually mean in lay terms.
The best answer in here is Leadership. That is what a captain does. Remember that leadership is: the action of leading a group of people or an organization, or the ability to do this. And this is shown here in this example. Hope this works for you