Comparing Venus Zodiac Signs. Your Venus is in: Note: These compatibility interpretations can be used with Sun Signs as well. When the relationship in question is a love relationship, one factor that should be considered is the comparison of Venus signs.
While primarily working the pectoralis major muscles, using a pec fly machine requires some support from the pectoralis minor muscles in the chest, the deltoid muscles in the shoulders, and the serratus muscles in the rib cage.
Strong Shoulders. The spring chest expander works the deltoids as the primary muscle for the movement. There are three primary sections to your deltoids, or shoulder muscles, anterior or front, middle and posterior or back.road Back. The basic exercise of the spring chest expander also engages the upper back muscles. The pulling action requires the upper back to engage. To get more back flexion out of this exercise, squeeze your shoulder blades toward each other as you pull the chest expander outward.