Question

how many degrees of hip flexion and hip extension is normal in the standing position?
hip flexion = 120 degrees; hip extension = 20 degrees
hip flexion = 70 degrees; hip extension = 40 degrees
hip flexion = 90 degrees; hip extension = 50 degrees

Explanation:

In normal standing position, typical hip flexion range is around 120 degrees (when leg is lifted forward) and hip extension (when leg is moved backward) is about 20 degrees. This is based on standard anatomical range - of - motion knowledge in the field of Medicine and Health (related to human musculoskeletal system movement).

Answer:

Hip flexion = 120 degrees; Hip extension = 20 degrees