Which type of spring is typically used for exercises involving the upper body on the Springboard?

The type of spring typically used for upper body exercises on the Springboard is yellow. The yellow spring offers a lighter resistance, which is suitable for exercises targeting the upper body, such as arm and shoulder movements. When performing exercises for this area, lighter resistance allows for greater range of motion and control, making it easier to focus on proper form and technique.

In contrast, other springs like red or blue provide more resistance and might be more appropriate for exercises involving larger muscle groups or lower body work, which require additional support and strength. The purple spring can also offer varying resistance levels, but it is often utilized in different contexts where a moderate level of challenge is needed rather than specifically tailored for upper body movements. Thus, the yellow spring stands out as the optimal choice for facilitating upper body exercises effectively on the Springboard.