What is the deduction for a lack of turn on one foot in floor exercises?

The deduction for a lack of turn on one foot in floor exercises is typically 0.2. This deduction reflects a significant element of artistry and control in gymnastics performances. A one-foot turn is considered an important skill that showcases balance and the ability to execute movements with precision. When a gymnast fails to complete a required turn on one foot, it affects the overall presentation and technical execution score of the routine, warranting this specific deduction. The 0.2 deduction effectively communicates the importance of this element while acknowledging that a partial execution still demonstrates some level of skill.