My Favourite 3D Strength Exercises for the Shoulder (& Neck)
As discussed in the previous blog (What is 3D Strength?), 3D muscles have two primary actions: motion in 3D (rotation and sideways movements) & stabilisation (of the ball within the socket of the joint).
Below are my favourite exercises for working on your 3D shoulder muscles by performing 3D motion and 3D joint stabilisation movements.
Although these exercises target the shoulder, 3D Strength Theory proposes that improving 3D shoulder muscle capacity will help many people with neck and upper-back pain.
You can read more about the research supporting 3D Strength Theory here -> 33 Studies Supporting 3D Strength Theory.
How many, how often?
Working on muscles is all about making things gradually harder over time. The exercise difficulty can be progressed in 3 dimensions: 1) Resistance 2) Stage 3) Time Unless otherwise specified, I'd suggest 3 sets of 6-12 reps for these exercises, 3x weekly. Start with your weaker side, and have 2-3 minutes rest between sets. Recording the date, exercise, sets, reps, resistance / time is strongly recommended, most people end up going in circles without progressing any of the dimensions if they don't record each session. I have included a free template tracker which you download and use at the bottom to save you time. Try combining at least one rotation and one stabilisation exercise. This is enough to make good progress and its manageable even when time is at a premium. For those of you very keen on your strengthening, use two rotational and two stabilisation exercises.
Rotation - Low
Stage 1 - ER Isometric
This is a fantastic exercise. People I treat in clinic often get a degree of instant pain relief after trying this exercise. It is a very helpful exercise for when all rotational movements cause pain. It is also surprisingly effective at working your 3D Shoulder muscles, particularly when performed with strong, comfortable effort (Uga et al., 2016). I also like it because you can do it with no equipment, and it looks less weird if you are squeezing it in whilst in the office or on a train compared with the other exercises below. Unlike other exercises here, I tend to prefer 3-5 sets, 5 reps of 5s holds for this one, with sets spread over the day.
Stage 2 - ER Neutral - Band/Cable
A classic exercise for a reason.
External rotation does an excellent job of working the posterior rotator cuff, particularly the infraspinatus and teres minor (Reinold et al., 2004) with more resistance working each harder (Sung et al., 2026).
A note on form here - avoid flicking your wrist backwards, use a rolled towel to fix your elbow to body and try to keep the elbow angle at 90 degrees. This will ensure the 3D muscles work as hard as possible.
Stage 3 - ER 45 - Band/Cable/Dumbbell
Research published this year suggests 45° may be a particularly useful position for working the 3D shoulder muscles. Compared with neutral, it increases supraspinatus involvement while maintaining high infraspinatus activity, producing strong co-contraction between the two muscles (Sung et al., 2026).
This one also allows progression with dumbbells, helpful for those who really want to maximise their 3D shoulder strength.
Rotation - Elevated
Stage 1 - ER Supported 90/90 - Band/Cable/Dumbbell
This is a great place to start with elevated external rotation.
Supporting the arm allows you to concentrate on rotation without asking the shoulder muscles to do as much work simply holding the arm in position. Research shows that as this support is removed, the 3D stabilising demands on the shoulder increase (Tardo et al., 2013).
Be sure to sit up straight before starting - it will be a much more helpful movement if you're not hunched over.
Stage 2 - ER 90/90 - Band/Cable/Dumbbell
Now the 3D muscles have two jobs: rotating the shoulder and helping stabilise the unsupported arm. As a result, whilst it gets great 3D muscle activation (Escamilla et al., 2009; Sung et al., 2026), it is a hard exercise to do well. Try it in a mirror initially. If your shoulder is shrugging up towards your ear, or it feels uncomfortable or painful, work on the stage I for now.
Stage 3 - ER 90/90 Face Pull - Band/Cable
A variant of an exercise commonly recommended for throwing athletes due to its particularly high 3D muscle activation (Mullaney et al., 2021). The use of a single arm here ensures both shoulders are worked evenly.
Stabilisation - Open Chain
Stage 1 - Short Lever Scaption - Band/Cable/Dumbbell
When the neck and shoulder are sore, starting with a straight arm for this movement can be painful. This exercise introduces the stabilisation job with a short lever (bent arm), for improved comfort. Lifting the arm slightly forwards rather than straight out to the side also seems to keep the ball of the shoulder more centred in the socket than lifting the arm straight out to the side, making it a useful place to start (Giphart et al., 2013).
Stage 2 - Lateral Raise - Band/Cable/Dumbbell
Moving the arm directly out to the side places greater demand on supraspinatus than lifting the arm slightly forwards, making this a useful way to increase the challenge to the upper posterior cuff (Alenabi et al., 2016).
Stage 3 - Scaption to 150 - Band/Cable/Dumbbell
This final stage takes the stabilisation challenge through a much larger range of movement.
Research using fine-wire electrodes shows that different parts of the supraspinatus and infraspinatus are recruited differently as the arm moves through low, middle and high elevation angles, including up to 150° (Alenabi et al., 2019).
Taking the arm overhead therefore gives the 3D shoulder muscles experience controlling the joint through positions that the earlier stages do not reach.
Use a lighter resistance than you might for the shorter-range exercises and focus on keeping the movement smooth and controlled.
Stabilisation - Closed Chain
Stage 1 - Incline Side Plank
Challenging the 3D muscles to stabilise via weight baring is an effective way to get them working (Uhl et al., 2003). For this exercise I would suggest 3 sets of 10 - 30s on each side, building the time gradually as it becomes easier. It is helpful to push the hips forward when doing this movement, to maximise the stabilisation work.
Stage 2 - Side Plank
The natural progression from stage I, with greater weight baring comes greater 3D muscle activation (Can et al., 2024). Again I would suggest 3 sets of 10 - 30s on each side, building the time gradually as it becomes easier.
Stage 3 - Side Plank Twist
Adding a twist makes the side plank a more dynamic, multiplanar stability exercise. This is a tough one, I'd suggest starting with 3 sets of 3 repetitions (one full twist being 1 rep) and build up to 8 reps.
Foot position matters for difficulty too. Having the feet one in front of the other will be plenty difficult enough for most. If you want an extreme stabilisation challenge, try one foot on top of the other.
Exercise Tracker
References
Alenabi, T., Dal Maso, F., Tétreault, P., & Begon, M. (2016). The effects of plane and arc of elevation on electromyography of shoulder musculature in patients with rotator cuff tears. Clinical biomechanics (Bristol, Avon), 32, 194–200. https://doi.org/10.1016/j.clinbiomech.2015.11.011
Alenabi, T., Whittaker, R. L., Kim, S. Y., & Dickerson, C. R. (2019). Arm posture influences on regional supraspinatus and infraspinatus activation in isometric arm elevation efforts. Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology, 44, 108–116. https://doi.org/10.1016/j.jelekin.2018.12.005
Can, E. N., Harput, G., & Turgut, E. (2024). Shoulder and Scapular Muscle Activity During Low and High Plank Variations With Different Body-Weight-Bearing Statuses. Journal of strength and conditioning research, 38(2), 245–252. https://doi.org/10.1519/JSC.0000000000004622
Escamilla, R. F., Yamashiro, K., Paulos, L., & Andrews, J. R. (2009). Shoulder muscle activity and function in common shoulder rehabilitation exercises. Sports medicine (Auckland, N.Z.), 39(8), 663–685. https://doi.org/10.2165/00007256-200939080-00004
Giphart, J. E., Brunkhorst, J. P., Horn, N. H., Shelburne, K. B., Torry, M. R., & Millett, P. J. (2013). Effect of plane of arm elevation on glenohumeral kinematics: a normative biplane fluoroscopy study. The Journal of bone and joint surgery. American volume, 95(3), 238–245. https://doi.org/10.2106/JBJS.J.01875
Mullaney, M., Nicholas, S., Tyler, T., Fukunaga, T., & McHugh, M. (2021). Evidence Based Arm Care: The Throwers 10 Revisited. International journal of sports physical therapy, 16(6), 1379–1386. https://doi.org/10.26603/001c.29900
Reinold, M. M., Wilk, K. E., Fleisig, G. S., Zheng, N., Barrentine, S. W., Chmielewski, T., Cody, R. C., Jameson, G. G., & Andrews, J. R. (2004). Electromyographic analysis of the rotator cuff and deltoid musculature during common shoulder external rotation exercises. The Journal of orthopaedic and sports physical therapy, 34(7), 385–394. https://doi.org/10.2519/jospt.2004.34.7.385
Sung, J. H., Kim, G. T., Shin, H., Lee, D., & Wang, J. (2026). The effects of shoulder abduction angle and elastic band resistance on shoulder muscle activity during external rotation exercises. Scientific reports, 16(1), 4707. https://doi.org/10.1038/s41598-025-34767-w
Tardo, D. T., Halaki, M., Cathers, I., & Ginn, K. A. (2013). Rotator cuff muscles perform different functional roles during shoulder external rotation exercises. Clinical anatomy (New York, N.Y.), 26(2), 236–243. https://doi.org/10.1002/ca.22128
Uga, D., Endo, Y., Nakazawa, R., & Sakamoto, M. (2016). Electromyographic analysis of the infraspinatus and scapular stabilizing muscles during isometric shoulder external rotation at various shoulder elevation angles. Journal of physical therapy science, 28(1), 154–158. https://doi.org/10.1589/jpts.28.154
Uhl, T. L., Carver, T. J., Mattacola, C. G., Mair, S. D., & Nitz, A. J. (2003). Shoulder musculature activation during upper extremity weight-bearing exercise. The Journal of orthopaedic and sports physical therapy, 33(3), 109–117. https://doi.org/10.2519/jospt.2003.33.3.109
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