What criteria must be met for a skater to be considered in a sideways balancing position?

A sideways balancing position is characterized by the skater's ability to maintain stability while being lifted or supported in a lateral orientation. The correct criterion states that the lifted skater must have at least one arm and leg unsupported. This is crucial for demonstrating true balance and control in this position, as it indicates that the skater can maintain their center of gravity without relying fully on other skaters for support.

This condition allows the lifted skater to showcase their strength, flexibility, and core control, essential aspects of synchro skating that contribute to the aesthetic and technical quality of the performance. It emphasizes the skater's ability to execute difficult maneuvers while still appearing graceful and balanced.

Other criteria might suggest arm or leg positions that include support, but true sideways balance relies on being able to manage body weight and positioning effectively without full reliance on external assistance. Thus, the ability to maintain a sideways balancing position with an unsupported arm and leg reflects the skater's proficiency in balance and control in a demanding skating situation.