The angle of pull is used to describe the angle of any muscle and the bone to which it's attached. Orthopedists and physical therapists use this term.
Although the term "angle of pull" was originally created and used by medical professionals, weight lifters and body builders use this term frequently when they are describing a specific technique. Orthopedists use this term when they are describing a person's range of motion. When orthopedists consider a patient's limited mobility, they use angle of pull to determine the percentage of muscle disability. Physical therapists use this to measure a patient's rehabilitation progress over time.