Final answer:
In yoga, it's important to pay attention to the back leg in standing poses to maintain proper alignment and prevent injury.
Step-by-step explanation:
When practicing standing poses in yoga, it's important to pay attention to the back leg to maintain proper alignment and prevent injury. In poses like Warrior I, collapsing into the medial longitudinal arch can twist the knee and cause strain. To avoid this, turn the back foot in so that the arch stays lifted, the knee stays safe, and the pose is supported.