A supinated grip would be palms down.

A supinated grip is characterized by the palms facing upward or forward, which is the opposite of the palms down position described in the question. When performing exercises with a supinated grip, such as bicep curls or chin-ups, the palms are oriented to face toward the individual, which aligns with the definition of a supinated position. Therefore, the statement that a supinated grip would be palms down is false. Understanding the orientation of grips is essential for proper exercise execution and targeting of specific muscle groups.