Mastering proper dumbbell fly technique can be the missing link between a stagnant chest and noticeable gains in strength, definition, and upper-body power.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When it comes to chest-developing exercises, the fly ranks as one of the most popular among gymgoers. But ...

When building a bigger chest, bench press and dumbbell flyes are two of the most common exercises. One builds raw power while the other emphasizes a deep stretch. But which one truly delivers superior ...