What exercise type involves application of force with movement?

Isotonic exercise is characterized by the application of force through a range of motion, which involves the contraction of muscles while moving. This type of exercise typically includes activities such as lifting weights or performing squats, where the muscle length changes as it contracts and shortens, allowing for the movement of joints. The primary focus is on the activity itself involving a continuous movement, which distinguishes it from other types of exercise.

In contrast, isometric exercises involve muscle contraction without any change in muscle length or joint angle, such as holding a weight in a fixed position. Aerobic exercises, while also involving movement, primarily focus on improving cardiovascular endurance and typically do not emphasize the application of force in the same way isotonic exercises do. Lastly, resistance training encompasses a broader category that includes both isotonic and isometric exercises, but specifically refers to any activity designed to improve muscle strength.

Thus, isotonic exercise specifically addresses the dynamic application of force with movement, making it the correct response to the question.