The AC joint is located on the top of your shoulder where the collar bone attaches onto the acromion of the shoulder blade. You can experience pain and clicking in this area when you’ve injured it. AC joint pain from weightlifting is usually aggravated when you lift weights above shoulder height.
Here's a video I did about this:
What causes AC joint pain from weightlifting?
It is most often linked to repetitive strain from lifting very heavy weights on a regular basis – especially if you’ve ramped the weight up quite quickly. This causes the ligaments and connective tissue that stabilise the AC joint to strain.
How do you get it better?
You’ll have to dramatically reduce the load through the joint to allow the ligaments and joint to settle down. This usually means no lifting above shoulder height for anything between 4 to 6 weeks. Once you go back to lifting, you’ll have to start with very light weights and slowly ramp it up, otherwise you’ll just reinjure it.
Make sure that you also correct any issues with your technique that could have contributed to the issue.
Let me know if you have any questions. Need more help with an injury? You’re welcome to consult me online via video call for an assessment of your injury and a tailored treatment plan.
Best wishes
Maryke
About the Author
Maryke Louw is a chartered physiotherapist with more than 15 years' experience and a Masters Degree in Sports Injury Management. Follow her on LinkedIn, ResearchGate, Facebook, Twitter or Instagram.