Many people say, "My hip joints feel stiff," "My neck gets stuck when I turn it to a certain angle," or "My knees feel a bit stiff when I bend them."
"Card" is a very real feeling. But what exactly is it?
Many people think that being stuck means bones are stuck together—two hard things collide and can't move.
However, in most cases, joint jamming is not directly related to bones.
Getting stuck is usually a soft tissue problem.
In a healthy joint, the bones do not come into direct contact with each other—there is cartilage, synovial fluid, joint capsule, and layers of fascia and muscles covering them.
When a joint feels stuck, it's usually because there's a problem with these soft tissues:
Fascial adhesion
Fascia requires continuous multi-directional movement to maintain its sliding ability. When movement in a certain direction is lacking for a long period, the fascia in that direction gradually loses its sliding ability, and adjacent fascial layers begin to stick together.
When you try to make a movement in that direction, the adhered fascia is stretched, creating a feeling of resistance that it "cannot be pulled apart"—this is what many people call "locking".
It's not that bones are stuck together, but that the fascia layers have lost their ability to slide.
Muscle tension imbalance
For each direction of movement of a joint, there are agonist and antagonist muscles—one side contracts while the other relaxes, allowing the movement to occur smoothly.
When a muscle group is chronically tight, its antagonist muscle cannot contract fully, and movement is restricted to a limited range. When you try to exceed this range, you feel resistance, you feel a "lock".
Many people experience hip joint locking because their hip flexors are too tight, limiting the range of hip extension. Cervical spine locking is often caused by persistent tension in the muscles on one side of the cervical spine, restricting rotation to one direction.
Uneven distribution of synovial fluid
The distribution of synovial fluid within the joint cavity depends on joint movement to maintain a uniform distribution. When a joint remains in a fixed position for an extended period, synovial fluid accumulates in some areas and is lost in others.
When you try to do a movement that you don't usually do, the synovial fluid hasn't fully lubricated the joint surface in that direction, so the movement feels awkward, and sometimes there's a slight resistance or sound—this is also a form of "locking".
Nervous system protection mode
This is the most frequently overlooked reason for getting stuck.
The nervous system constantly monitors the state of the joints. When it detects that a certain movement may pose a risk—perhaps because movement in that direction has not occurred for a long time, or because the nervous system's control over that range is uncertain—it will actively restrict you from entering that range.
This limitation is not a physical obstacle, but a brake actively applied by the nervous system. The "stalling" you feel is actually the nervous system saying: I'm not confident about this direction, so I'll stop here for now.
The problem often doesn't occur in the specific area where the blockage is located.
This is one of the most confusing things about joint problems: the location of the problem and the location of the sensation are often different.
Knee locking may be caused by the hip joint – when the hip joint's range of motion is limited, the knee needs to compensate by bearing rotational and lateral forces that it shouldn't have to bear. Over time, this can lead to locking and pain.
Cervical spine stagnation may be caused by the thoracic spine – when the thoracic spine loses its ability to rotate, the cervical spine must compensate for the rotation of the entire upper body. Long-term overuse causes the cervical spine to lose its mobility and begin to stagnate.
Lumbar spine constriction can be caused by problems in the hip joint or the thoracic spine. When these two areas have insufficient mobility, the lumbar spine becomes the most vulnerable part of the entire spine, bearing all the movements that should be distributed to other areas, and begins to wear down and become constricted.
Chanrou understands this chain of events very well. She never just deals with the "stuck spot," but looks at the entire system—what imbalance led to compensation in this area?
How did Chanrou deal with the "card"?
Don't force it; let the space appear on its own.
When faced with a stuck joint, many people instinctively try to push it through—stretching it to its limit and forcing the joint into that restricted area.
Chanrou's approach was completely the opposite.
It doesn't force the joint into a range it's not yet ready for; instead, it creates conditions for that range to expand naturally. Through the release of surrounding tissues, the lengthening of opposing extensions, and the establishment of a sense of security in the nervous system—it allows the joint to slowly and willingly enter a larger range, rather than being forced in.
When a joint is forcibly opened, the nervous system remembers the threat and protects it more tightly next time. When a joint is guided to open naturally, the nervous system establishes a new safe zone, making it easier to enter next time.
Start from the surroundings, not from where you're stuck.
Chanrou treats hip joint constriction by not directly stretching the hip joint, but by first releasing the hip flexors, activating the gluteal muscles, and allowing the pelvis to find a neutral position—eliminating the cause of the hip joint constriction, and the hip joint naturally opens.
To treat cervical spondylosis, first restore the thoracic spine's rotational capacity—when the thoracic spine can share the rotational workload, the cervical spine no longer needs to compensate, and its mobility will naturally return.
Establishing trust in the nervous system
This is Chanrou's deepest work in dealing with joint limitations.
Many "blocks" arise because the nervous system doesn't trust that area. To open that area, the nervous system needs to build trust—by performing controlled, rhythmic movements at the boundaries of that area, allowing the nervous system to gradually confirm that the direction is safe. Only then will it release the brakes and allow the movement to enter a deeper area.
This process requires time, patience, and mindful repetition.
But the changes it produces are more lasting than any forced stretching—because the changes begin in the nervous system, not in the forced pulling of tissues.
Hear the sound of the card
Sometimes, when a joint gets stuck, it's accompanied by a sound—a click or a snap.
Many people panic when they hear this sound: "Are my joints damaged?"
In most cases, no.
Joint sounds are usually caused by air bubbles bursting in the joint cavity under pressure changes (like the sound of cracking knuckles) or by tendons snapping as they slide over bony prominences. These sounds themselves do not usually indicate injury.
However, if the sound is accompanied by pain, or if the sound continues to occur during the same movement, it is a signal that there is a problem with the distribution of tissue tension in this area, which deserves serious attention.
Getting stuck is your body telling you something.
Each "card" represents a piece of information.
It's telling you that fluidity has been lost somewhere—perhaps there's fascial adhesion, muscle tension imbalance, or the nervous system has built a protective wall.
What Chanrou teaches you is not to ignore this information, nor to force your way through it, but to listen to it, understand it, and then use the wisest way to help that place regain its flow.
Being stuck is not the end. It's an invitation—an invitation for you and that place to re-establish a dialogue.
