Final answer:
The risk of orthopedic and cardiac complications increases at higher exercise intensities.
Step-by-step explanation:
The risk of orthopedic and cardiac complications associated with exercise training increases at higher exercise intensities. This means that as the intensity of exercise increases, so does the risk of complications.
For example, endurance programs that involve 1-3 hours per day of moderate to high intensity exercise pose a higher risk compared to low intensity or skill-based activities.
It's important to note that while exercise has numerous health benefits, including improved cardiac function, excessive and extremely intense exercise without proper rest between sessions can lead to adverse effects.