AC Joint Injury Exercises
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Rehabilitation of AC joint separation
The following guidelines are for information purposes. We recommend seeking professional advice. AC joint separation exercises should begin when the ligament has healed and there is no pain. Initially complete rest, immobilization and regular application of ice or cold therapy to reduce pain and inflammation.
Following a period of cold therapy and immobilization for grade 1 & 2 injuries, mobility exercises can begin, but only once shoulder movement is pain free. This will normally be 7-14 days for grades 1 and 2. Grade 3 injuries are now more frequently being treated with conservative treatment, rather than surgery and will require a longer healing period.
Exercises to restore the scapular rhythm are important. The shoulder blade and upper arm bone should move together with the correct timing. In the injured athlete this rhythm is often lost.
If the shoulder has been immobilized for a period of time then it may have lost mobility or range of motion. Pendulum exercises can begin as soon as the ligament has healed and pain allows. Gently swing the arm forwards, backwards and sideways whilst lying on your front or bent over as seen opposite. Gradually increase the range of motion. This is repeated with the arm swinging from side to side as well. Aim to reach 90 degrees of motion in any direction.
See pendulum exercises video.
Front shoulder stretch
Place one forearm on a fixed point such as a doorframe or corner of a wall and gently turn away from it to stretch the front of the shoulder. Hold the position for 10 to 20 seconds and repeat 3 times. The athlete should feel a gentle stretch in the front of the shoulder but not pain.
External rotation stretch
The patient lies on their back with the upper arm at 90 degrees to the body and the elbow bent so the hand points to the ceiling. A partner or therapist rotates the arm at the shoulder, so that the palm of the hand faces up as shown. Hold the position for 20-30 seconds, rest and repeat 3-5 times. Stretches can be done on a daily basis assuming there is no pain. Stretching must be done regularly and continued throughout the rehabilitation process.
Isometric shoulder strengthening
Strengthening of the muscles surrounding and supporting the shoulder can begin in line with the mobility exercises as shown above, as long as the shoulder remains pain free. Strengthening should initially be isometric, meaning contracting the muscles without movement.
External rotation and internal rotation can be performed by standing side on to a wall, with your upper arm by your side and the elbow bent to 90 degrees. Place the back of the wrist against the wall and try to rotate the arm at the shoulder, against the resistance of the wall so there is no movement. Start off applying a gentle pressure and gradually increase how hard you push. Hold for 10 seconds, rest for 3-5 and repeat up to 10 times.
Internal rotation can be performed with the arm in the same position, rotate your body to face the wall. Place the front of the wrist against the wall (around the corner) and try to rotate your arm towards you.
Abduction is done by standing side on to the wall, straighten the elbow and place the back of the wrist and hand against the wall. Try to push the wall away as if lifting the arm out to the side. After a week of pain free mobility and isometric strengthening exercises, strengthening can be progressed. Stretching should continue throughout this phase.
Play isometric shoulder exercises video.
Resistance band exercises
An excellent piece of equipment to use to strengthen the shoulder is a resistance band. Exercises can be progressed to isotonic, using resistance in a number of ways, with one piece of equipment. When using resistance bands start using a long length, if it is too easy you can shorten the band or double it up to provide more resistance.
This is the exact opposite movement to external rotation. With the same starting position, pull your hand in, towards your stomach, again keeping the elbow by your side. Note you will have to turn yourself around to apply resistance to the exercise so that you are pulling the band from your side, across your body.
Play medial rotation exercise video.
External rotation can be done by attaching the band to something stable, holding one end, with the upper arm fixed against the body and the elbow bent. Pull the band so that the hand and forearm move away from the body whilst keeping the elbow against your side. Or hold the band between the hands with elbows at the sides and work both at the same time pulling the shoulder blades back. Perform 3 sets of 10 repetitions with a minute rest between sets.
Play external rotation with band video.
Abduction lateral raise
Still using the resistance band, stand on one end of the band, with the other end in your hand. Keeping the elbow straight, pull your hand up to level with your shoulder ensuring you maintain a good posture throughout. Again perform 3 sets of 10 repetitions. This can be performed just as easily with a small dumbbell.
Play abduction with band exercise video.
Return to sport
Before returning to any type of sport following an AC joint injury there should be a full pain-free range of motion. On return to contact sports, protection can be provided by padding the joint with a circular piece of padding with a hole cut in the middle which should be centered over the joint. This can be kept in place with bandaging or a shoulder support. Stretching, mobility and strength exercises should be continued throughout the return to sport phase.
See shoulder rehabilitation exercises for a complete list of all shoulder exercises.