Ideally, the wrist should rotate 50 degrees in supination and 50 degrees in pronation for functional use.
This range of motion is considered acceptable and allows for most daily activities. Pronation refers to the motion of turning the palm downward, while supination refers to the motion of turning the palm upward. Having adequate range of motion in both directions is crucial for performing various tasks that require hand and wrist movement.
Here's a breakdown of why this range is considered functional:
- Supination (Palm Up): 50 degrees of supination allows you to perform actions like holding a bowl, turning a doorknob counter-clockwise, or using a screwdriver.
- Pronation (Palm Down): 50 degrees of pronation is needed for actions such as typing, turning a doorknob clockwise, or pouring water.
It's important to note that while 50 degrees in each direction is considered functional, a larger range of motion is generally desirable. Factors such as age, activity level, and underlying medical conditions can influence the normal range of motion. Reduced wrist rotation can impact the ability to perform everyday tasks and may indicate an underlying condition. If you experience pain or limited range of motion in your wrist, you should consult a healthcare professional for evaluation and treatment.
