Karl wants to strengthen his core and lower back muscles. He currently performs three sets of six-inch holds for about 10 seconds on each lift. He decides to add stretching his arms over his head to each set. This type of change is an example of a(n)
This is an example of intensity change because he is deciding in one moment to add stretching his arms over his head to each set and it is referring to extreme strength, force, and energy.
He is adding more because he wants to make the transformation and strengthen his muscles. The person who is doing exercises can measure his intensity with heart rate and age.
