Strength training helps improve your proprioception, or knowing where your body is in space.
With hypermobile joints, you can’t always sense what position the joint is in and it’s hard to feel where “neutral” is.
If you use a weight that is sufficiently heavy, it actually improves feedback and information to the joint so you can better sense where your body is.
Strength training also helps strengthen the muscles and tendons that cross the joint, which helps your joints be more stable.
