A gymnast is performing her routine on the balance beam. She is standing on her left leg and facing forward along the long axis of the beam. Her right leg is flexed 90 degrees at the hip and with the knee extended. Her left arm is fully abducted 180 degrees at the shoulder, and her right arm is abducted 120 degrees at the right shoulder. She begins to fall to the right. What should she do with her arms to help regain her balance?

To help regain balance while falling to the right, the gymnast should make specific adjustments with her arms. Let's break down the given information:

1. The gymnast is standing on her left leg, so her left leg is already supporting her and maintaining balance.
2. Her right leg is flexed 90 degrees at the hip and with the knee extended. While this position provides stability, it's mainly the arms that will help her regain balance.
3. Her left arm is fully abducted 180 degrees at the shoulder, which means her arm is out to the side in a horizontal position.
4. Her right arm is abducted 120 degrees at the right shoulder, indicating that her arm is slightly below shoulder level.

Given this information, to regain balance while falling to the right, the gymnast should bring her right arm closer to her body and bend the elbow. Here's how she can adjust her arms:

1. Lower and adduct the left arm: The gymnast should bring her left arm down and close to her body. This will help shift her center of mass towards the left, counteracting the falling motion to the right.
2. Raise and bring in the right arm: She needs to lift her right arm above shoulder level and bring it closer to her body. This adjustment will shift her center of mass towards the right, thereby correcting the imbalance.

By making these adjustments, she effectively redistributes her body's mass, allowing her to regain stability and balance on the beam.

To regain balance while falling to the right on the balance beam, the gymnast should adjust the position of her arms. Here are the steps she should follow:

1. First, she should quickly bring her right arm back towards her body. By reducing the angle of abduction at the right shoulder, she can shift her center of mass towards the left, helping regain balance.

2. Next, she should extend her left arm further towards the side. This will increase the overall base of support, providing more stability and aiding in counterbalancing the leaning motion.

3. To redistribute her weight, the gymnast should also lean her upper body slightly towards the left side. This helps to align her center of mass more centrally over her base of support, making it easier to maintain balance.

Remember, while performing these adjustments, the gymnast should also engage her core muscles and maintain a strong, stable core to support her movements and maintain balance on the beam.