Mobile & Stable Joints

Mobile & Stable Joints

March 25, 20261 min read

Mobile & Stable Joints

Mobility isn’t just about being flexible. It’s about understanding which joints are actually meant to move… and which ones aren’t.

Your body isn’t random. It’s organised in a really clever way with an alternating structure, one joint is designed for movement, the next one is designed for stability, then movement again, then stability again.

Each layer has a role, and when each joint does its job, movement should feel easier and less painful — if not pain free.

Starting from the ground up, your ankle is a mobile joint, whilst your knee is a stable joint.

Above that, your hip is a mobile joint and your lower back — your lumbar spine. It’s not designed for stability.

Moving up, your thoracic or T-spine is again designed for mobility. Your scapula sits on the back of your rib cage as a stabilising platform for the shoulder. whilst your shoulder is mobile

Your elbow stabilises and your wrist should be mobile, so you can see this alternating pattern all the way up. Move. Stabilise. Move. Stabilise.

For golfers, this matters a lot because the swing is rotational and rotation doesn’t just happen anywhere, it should come from the joints designed for it.

When you understand this pattern, mobility training stops being random stretching and becomes more targeted and logical,.You can start asking yourself, is this joint meant to move… or is it meant to be stable?

That one question can change how you look at where your rotation is really coming from in your swing — and highlight areas where you might need to focus training.

Sare

Sare Carpenter is the founder of Swing Fit, a golf and performance coaching brand that blends science with feel-good training. With over a decade of experience and certifications from the Titleist Performance Institute, she helps golfers and high-performing women unlock their body’s full potential through intelligent strength, mobility, and recovery coaching. Her programmes go beyond generic workouts — they’re built around movement assessments, fascia-focused mobility, and strength systems designed for real results on and off the course. When she’s not coaching, Sare’s usually in the gym testing training methods, refining her swing, or finding creative ways to help clients move better and feel unstoppable

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