What is a common characteristic of materials used in orthosis?

A common characteristic of materials used in orthosis is that they are often lightweight. This is important because orthoses are intended to support and stabilize while allowing for mobility and comfort. Lightweight materials help reduce the overall bulk and weight of the orthotic device, making it easier for patients to wear for extended periods without causing fatigue or discomfort.

Additionally, lightweight materials contribute to the ease of use and enhance the patient's ability to engage in daily activities. This is particularly crucial for individuals who may have mobility limitations or require limb support. While there are many types of materials available for orthoses, those that prioritize a balance between strength and lightweight properties are often favored in practice.

In contrast, materials being biodegradable is not a common characteristic seen across all orthotic devices. Rigid materials may be used in certain contexts, but flexibility is often necessary for comfort and range of motion. Lastly, ceramics are not typically used in orthoses due to their brittleness and weight, making them less suitable for a supportive device that requires both durability and some degree of flexibility.