Taking the following things into account, movement should be done.
Gain a full understanding of the history of any former injuries and the symptoms that are being experienced at this time. You should use active movement, resisted muscle tests, and passive range of motion assessments to determine the health of the area. If you suspect that a muscle tear has occurred, avoid resisted muscle testing.
Once you have gathered the client history, start with passive movement. Gently examine and work limitations in the range of motion. The patient should not endure any pain during this process.
Do not move a joint beyond its normal range for motion. Look at the opposite, unaffected side to determine the patient's normal range of motion.
The muscle may be pressed into while being stretched. This process is referred to as passive stretching. This process ensures that collagen fibers that cross the grain of the muscle are broken while those that run parallel to the muscle fibers are not. If pain free, the person can return to active movement.
You can press into the muscle while the recovering client is actively stretching it. The muscle being stretched, because of reciprocal inhibition, will become more relaxed, as the client will be using the antagonist muscle. This process is more effective than passive stretching.
At this point, you should start slowly with passive movement, and then graduate towards active and resisted movements, remembering to stay within the comfort range of the client. Motion is quite effective in accelerating your clients' healing process.
Source : www.articlecircle.com/health/how-motion-aids-healing.html