Which statement is a guideline for proper crutch sizing?

Which statement is a guideline for proper crutch sizing?

• A. Elbows flexed 0-10 degrees
• B. Elbows flexed 20-30 degrees
• C. Elbows flexed 45-60 degrees
• D. Elbows flexed 90 degrees

Answer: (B)

The key idea here is that crutches should be sized so you hold the grips with a gentle bend in the elbows. About 20–30 degrees of elbow flexion is the comfortable, effective range for most people. This slight bend allows you to bear weight through your hands rather than loading the shoulders and wrists, keeps your posture upright, and gives you good control to advance the crutches with each step. If the elbows are nearly straight (0–10 degrees), the arms are overextended, which reduces shock absorption, increases load on the shoulders and wrists, and can make it harder to generate forward propulsion. If the elbows bend much more (45–60 degrees or around 90 degrees), the crutches are effectively too short for proper gait, leading to awkward movement, fatigue, and instability. So the 20–30 degree range represents the best balance for a safe, efficient gait with crutches.

The key idea here is that crutches should be sized so you hold the grips with a gentle bend in the elbows. About 20–30 degrees of elbow flexion is the comfortable, effective range for most people. This slight bend allows you to bear weight through your hands rather than loading the shoulders and wrists, keeps your posture upright, and gives you good control to advance the crutches with each step.

If the elbows are nearly straight (0–10 degrees), the arms are overextended, which reduces shock absorption, increases load on the shoulders and wrists, and can make it harder to generate forward propulsion. If the elbows bend much more (45–60 degrees or around 90 degrees), the crutches are effectively too short for proper gait, leading to awkward movement, fatigue, and instability. So the 20–30 degree range represents the best balance for a safe, efficient gait with crutches.