It is common for your shoulder to feel unstable or loose due to a previous injury where the instability was never fully resolved, and now you are noticing excessive movement in the shoulder with your job or your workouts. It is the job of the rotator cuff to secure the shoulder into the socket so targeting this muscle group is pivotal in improving shoulder stability. The video demonstrates four movements that will help assist you in addressing this issue. You want to work the muscle endurance initially, so aim for a higher rep count and reduce the rep count to address strength once you feel that instability is improved. All exercises should be challenging by the last rep with no pain!
Weight bearing through the shoulder is a functional way that the rotator cuff is activated. Hold the plank working toward a 2-minute hold and to 2-3 sets. If you need more of a challenge for shoulder stability, try the variations below.
Plank Variation-Shoulder taps
Aim for 15 SLOW taps to each shoulder for 2-3 sets if performed on the floor, and 6-8 taps per shoulder for 2-3 sets if on the wall.
Start with limited motion aiming for 3 sets of 15
Single Arm Overhead Farmers Carry
Walk for 15-20 yards and back for 3-4 sets
Single Arm Dumbbell Snatch
Start with 3 sets of 12 reps for each shoulder
Again, the aim is to target rotator cuff muscle endurance initially, so start with a weight where you feel fatigued by the last few reps of each set. Once you feel that your stability is improving, move onto phase 2 to work on strengthening. Increase your weight so that you feel fatigued by the last few reps but keep your rep count down to no more than 6-8.