Final answer:
The exercise principle of progression involves gradually increasing exercise intensity to improve fitness safely, avoiding overload.
Explanation:
The exercise principle of progression involves gradually increasing the intensity or volume of exercise to stimulate adaptation and improve fitness safely. A common example is progressively running longer distances or increasing workout frequency over time.
However, it's important to avoid overloading the body with too much exercise too soon, as this could lead to burnout, fatigue, or injury. The progression principle should involve a balanced and gradual increase in exercise volume or intensity to allow the body to adapt effectively.
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