Neck pain often arises from tight neck muscles that pull the neck vertebrae slightly out of alignment, called subluxation, which then impinge on sensory nerves entering the spine between these vertebrae. These sensory nerves relay that information back to the brain setting off the alarm in the form of pain.
Wrist Bending. Forward bending of your wrist is called flexion. This motion is needed for daily activities such as styling your hair, writing, getting dressed, using a screwdriver and lifting heavy objects. Normal wrist flexion is approximately 70 to 90 degrees.
SHARE SHARE TWEET EMAIL. Range of motion is the amount of movement you have with any joint before being restricted by the bones and muscles attached to the joint or by pain or stiffness. ROM differs from person to person, and the range of motion in your back for flexion and extension is unique to you.NL ROM. Full range of motion is described as being within normal limits, or WNL. Normal ROM for back flexion is 90 degrees, or bending forward to touch your feet.