Increasing the length of the lever arm during an exercise typically results in which of the following?

Increasing the length of the lever arm during an exercise generally leads to greater energy expenditure. This is because a longer lever arm increases the moment arm, which can require more force to be applied to maintain movement or balance during the exercise. As the body uses more muscles to stabilize and execute the movement through a longer lever, this increased demand translates into higher energy expenditure, as more metabolic energy is needed to sustain the activity.

When the lever arm is longer, the mechanical advantage changes, often requiring the body to engage more muscular effort or to work against greater resistance. This increased demand not only raises the level of exertion but also enhances calorie burn and overall fitness benefits. Thus, the choice that indicates greater energy expenditure aligns with the understanding of biomechanics and energy dynamics within fitness training.