Biceps for baseball? Sure why not; as long as there's an additional, integrated purpose that goes beyond just isolating the biceps. As an example, in addition to your biceps you can enhance your grip while performing bicep curls with fat bars, or a pair of Grip Force grips.
Taking one step further Recline/Inverted Bicep Curls provides a series of integrated benefits. For starters the biceps, obviously, play a big role in pulling your body up. This should satisfy the "hey, Im a guy. I need to curl" excuse. Secondly, to properly perform this exercise the athlete must maintain constant hip extension thru-out the repetition engaging the posterior chain.
This constant hip extension, which can also be referred to as anti-hip flexion, makes the Recline Bicep Curls a great core stiffening drill. Furthermore, as hip extension is maintained, this exercise can enhance hip flexor mobility (which as we know if it’s tight -lacks mobility- can potentially have a negative impact on hamstrings).
So next time you reach for a pair of dumbbells try some recline bicep curls instead.
Out Train the Game!