MSK (Musculoskeletal) Glossary: Understanding Your Body & Treatment

• High-velocity low amplitude thrust (HVLA) - A quick, controlled movement used to improve joint motion, often creating a small "click" sound. This is a primary technique used by our Chiropractor London and Osteopathy teams.

Expert Insight: The "pop" is simply a release of gas bubbles from the joint fluid. It is a highly effective way to restore movement and reduce muscle guarding quickly.

• Grade I-IV mobilisations (Maitland) - Gentle to stronger joint movements used to reduce pain and improve movement. Our MSK Physiotherapy London team uses these grades to safely progress your recovery from acute pain to full function.
• Kaltenborn technique - A slow and sustained joint movement used to stretch the joint capsule and restore mobility.
• Mulligan concept (MWM) - Hands-on techniques combined with movement to correct joint alignment and reduce discomfort.
• Muscle Energy Technique (MET) - A method where you contract muscles gently while the therapist guides movement to improve flexibility or alignment.

Expert Insight: We frequently use MET in our Osteopathy sessions to treat pelvic imbalances and "reset" tight muscles without heavy force.

• Strain-counterstrain - A gentle technique that places the body in a comfortable position to reduce pain and muscle spasm.
• Positional release technique - A method that eases tight muscles by holding them in a pain-free position for a short time.
  Sustained natural apophyseal glide (SNAG) - A mobilisation technique used by our MSK Physiotherapists on spinal joints while you perform a movement (like turning your head) to restore pain-free motion.
• Spinal decompression - Stretching or traction used to relieve pressure on spinal discs and nerves. It is a key part of our clinical approach to managing Sciatica.
• Functional technique - A gentle approach to restore joint and tissue function by moving them through comfortable ranges.
• Visceral manipulation - Hands-on therapy focused on the organs to improve their movement and reduce pressure on surrounding tissues.
• Craniosacral therapy - A light-touch technique focused on releasing tension in the head and spine to support the nervous system. Our Osteopaths use this for stress, headaches, and chronic tension.

• TMJ / Jaw Mobilisation - Specialised manual therapy techniques applied directly to the temporomandibular joint and masticatory (chewing) muscles to alleviate jaw pain, clicking, clicking restrictions, or locking.

Expert Insight: TMJ issues rarely exist in isolation; they are almost always intimately linked with neck stiffness, teeth grinding, or high stress levels. Our team frequently combines jaw mobilisation with craniosacral work to calm the nervous system and relieve the chronic headaches associated with jaw tension. Learn more about our bespoke TMJ jaw pain treatment.

• Fascial unwinding - A slow, gentle release of tight connective tissue (fascia) that surrounds muscles and organs.

Expert Insight: When fascia becomes restricted, it can limit the effectiveness of standard exercises. Releasing it allows your MSK Physiotherapy program to work more effectively.

• Joint distraction - A technique to gently separate joint surfaces, aiming to relieve pressure and increase space within the joint.
• Articular pumping - Rhythmic movements applied to joints to encourage fluid flow and reduce swelling.
• Shockwave Integration (Manual Therapy Support) - While manual therapy moves the joints, Shockwave Therapy London is used alongside these techniques to treat the underlying "stiff" tendons or calcifications that manual therapy alone cannot break down.
• Recoil technique - A quick-release method used to reset tension in tissues and promote relaxation.
• Chapman's reflexes - Reflex points on the body believed to relate to organ health, used in some osteopathic assessments.

• SAID principle - The body adapts specifically to the type of stress placed on it, so exercises need to match your goals. Our MSK Physiotherapy London team uses this to ensure your rehab exercises directly mimic the demands of your sport or daily life.
• Dose-response curve - The relationship between how much exercise you do and how your body responds or improves.
• Regressive / Progressive loading - Adjusting exercises to be easier or harder based on your recovery stage. We use this "staircase" approach in Osteopathy and MSK Physio to safely return you to full strength.
• Tissue capacity - The amount of load or stress your body tissues can safely handle before becoming irritated or injured.
• Neuromuscular efficiency - How effectively your nerves and muscles communicate. Improving this is a core focus of our Chiropractor London team, ensuring your joints are supported by responsive, active muscles.
• Rate of force development (RFD) - How quickly your muscles can produce force, important for strength and injury prevention.
• Load vs capacity model - A concept showing injury often happens when you do more than your body can currently handle.

Expert Insight: If you have chronic tendon pain where the load has exceeded capacity for too long, we often use Shockwave Therapy London to "restart" the healing process in the tissue.

• Time to fatigue (TTF) - The amount of time a muscle can perform before it becomes tired and stops working effectively.
• Tendon stiffness - The resistance of a tendon to stretch; more stiffness can mean better energy transfer, but too much can cause issues.

Expert Insight: Healthy tendons need a certain level of stiffness to act like springs. For "mushy" or degenerative tendons, Shockwave Therapy is excellent for stimulating the collagen density needed for better energy transfer.

• Eccentric bias training - Strengthening a muscle while it is lengthening (e.g., the "lowering" phase of a heel drop). This is the gold-standard approach in MSK Physiotherapy for treating Achilles and Patellar tendinopathies.
• Velocity-based training (VBT) - Using the speed of movement to guide how much weight or effort is used in an exercise.
• Submaximal loading - Training at less than your maximum effort. This is essential in the early phases of Osteopathy and rehab to build movement confidence without irritating healing tissues.
• Periodisation - Planning your exercise over weeks or months to build strength, avoid overtraining, and improve results.
• Movement variability - Having different ways to move a joint or muscle, which helps prevent overuse and build resilience.

Expert Insight: Pain often makes your movement "rigid." Our team helps you regain variability, which distributes stress across different tissues and prevents overuse of a single joint.

• Motor schema - Your brain's blueprint for how movements should be performed, which improves with repetition and practice.
• Fatigue index - A measure of how quickly your performance drops off during exercise, often used in rehab and sports.
• Plyometric phase - The part of training that includes explosive, jumping-type movements to build power.

• Pain threshold vs pain tolerance - Pain threshold is when you first feel pain; pain tolerance is how much you can handle.
• Nociception vs pain - Nociception is the signal of potential harm; pain is how your brain interprets it.

Expert Insight: You can have nociception without pain, and pain without nociception. Our MSK Physiotherapy London team helps you understand this distinction to reduce the "alarm" response in your body.

• Catastrophisation - Thinking the worst about pain or injury, which can increase fear and sensitivity to pain.
• Fear-avoidance model - Avoiding movement due to fear of pain, which can make problems worse over time.

Expert Insight: Movement is medicine. In Osteopathy, we use gentle manual therapy to prove to your brain that movement is safe, breaking the fear-avoidance cycle.

• Psychosocial overlay - When thoughts, emotions, or stress influence how pain is felt or how recovery happens.
• Yellow flags - Psychological or social "warning signs" (like high stress or fear of movement) that may slow down your recovery from injury. Identifying these allows our Chiropractor London team to tailor your treatment plan more effectively.
• Central modulation - The brain's ability to increase or decrease pain signals based on attention, emotions, or beliefs.
• Brain-based pain - Pain that is influenced by how the brain processes signals, not just tissue damage.
• Somatosensory cortex remapping - Changes in how the brain 'maps' your body, often seen in long-term pain conditions.
• Cortical smudging - Blurred brain maps of body parts that can cause unclear movements or persistent pain.
• Threat value of movement - How dangerous your brain thinks a movement is, which can affect pain and function.
• Persistent pain state - Ongoing pain that lasts beyond normal healing, often involving the nervous system.

Shockwave Therapy London (Excellent for "resetting" the local tissue environment in persistent cases like chronic tendinopathy).

• Maladaptive beliefs - Unhelpful thoughts, such as "my spine is out of place" or "I'm bone-on-bone," which can act as a barrier to recovery. We focus on education in our MSK Physiotherapy sessions to replace these with "adaptive" beliefs that promote healing.

• Hypointense / Hyperintense - Words describing how tissues appear darker or brighter on MRI scans, depending on their water content.
• Degenerative changes - Age-related wear and tear in joints or spine seen on scans, often not linked to pain directly.

Expert Insight: These are very common and often appear on scans of people with zero pain. Our Osteopathy and MSK Physiotherapy teams focus on how your body moves, rather than just what the scan shows.

• Signal alteration - A change seen on MRI that may suggest inflammation, injury, or healing in tissues.
• Endplate changes - Small changes at the top or bottom of spinal bones, often linked with back pain or disc issues.
• Bone marrow oedema - Swelling or inflammation inside the bone, seen on MRI, often after injury.
• Schmorl's nodes - Small herniations of disc material into the bone, usually found incidentally and often harmless.

Expert Insight: While they sound technical, they are usually found by accident and are typically harmless "birthmarks" on the spine.

• Modic changes - Specific changes in the spine bone and discs, sometimes linked to back pain.

Chiropractor London (Specialised in managing spinal mechanics related to Modic and degenerative findings).

• Disc desiccation - Drying out of the spinal disc, a common and natural part of ageing.

Expert Insight: Think of this like "grey hair of the spine." It is a normal part of getting older and does not mean your back is "failing."

• Annular tear - A small tear in the outer part of a spinal disc, which may or may not cause symptoms.
• Joint effusion - Excess fluid in a joint, usually from irritation, injury, or inflammation.
• Enthesopathy - A problem at the point where tendons or ligaments attach to bone, sometimes seen in overuse injuries.

Shockwave Therapy London (The gold-standard treatment for chronic enthesopathy and tendon issues that haven't responded to manual therapy).

• Osteophyte formation - Bone spurs or extra bone growth, often from arthritis or long-term stress on joints.
• Segmental instability - Too much movement at one spinal level, which might contribute to pain or stiffness.
• Pseudoarthrosis - A failed healing of a bone (often after surgery), where a false joint may form.
• T2-weighted / STIR sequence - MRI settings used to better show swelling, fluid, or soft tissue changes.
• Radiographic correlation - Matching what is seen on a scan with your symptoms to decide if the scan findings matter.

Expert Insight: At Bodytonic Clinic, we treat the person, not the scan. We ensure that any treatment-be it MSK Physiotherapy or Osteopathy-is based on your clinical presentation, not just an image.

• Subluxation (chiropractic context) - A slight misalignment or restricted movement of a joint or vertebra, which is thought to affect nerve function and overall body movement. This is a core focus for our Chiropractor London team.
• Somatic dysfunction - A restriction or imbalance in muscles, joints, or tissues that reduces how well the body functions. Our Osteopaths specialise in diagnosing and treating somatic dysfunction to restore the body's natural balance.
• TART (Tissue texture, Asymmetry, Restriction, Tenderness) - A framework used to identify areas of dysfunction in the body during assessment.

Expert Insight: We look for changes in how the skin feels, whether your posture is uneven, how far the joint moves, and where it is tender to create a precise treatment plan.

• Viscerosomatic reflex - When a problem in an internal organ causes pain or tension in nearby muscles or joints.
• Fryette's laws - Three specific laws of spinal mechanics that describe how the vertebrae rotate and side-bend. Understanding these allows our Osteopathy team to unlock complex spinal stiffness.
• Spinal segment facilitation - When a section of the spine becomes overly reactive, potentially leading to pain or tension in connected areas.
• Adjustment cavitation - The 'pop' or 'click' sound sometimes heard during a spinal adjustment, caused by gas release in the joint.

Expert Insight: This is caused by the release of nitrogen gas from the joint fluid. It is a sign of pressure change and is often followed by immediate relief and improved movement.

• Motion palpation - A hands-on assessment where our Chiropractors or Physiotherapists move your joints through their range to feel for "sticky" or restricted segments.
• Global vs segmental motion - Global motion refers to overall body or limb movement; segmental motion looks at movement in specific joints.
• Core link (craniosacral) - A concept in craniosacral therapy where head and spinal movement are thought to be linked via fluid rhythms.
• Biomechanical lesion - A term for restricted or abnormal movement in joints or tissues that may cause or contribute to pain.
• Intersegmental mobility - The specific amount of "glide" or movement between two adjacent joints. High-level MSK Physiotherapy involves restoring this mobility to prevent overuse of the joints above and below.
• Sacral torsion - A twisting or rotational pattern in the sacrum (base of the spine) that may contribute to pelvic or lower back pain.

Expert Insight: This is a very common cause of one-sided lower back pain and "SI joint" issues. Our Osteopathy London team uses specific techniques to realign the sacrum.

• Shockwave Integration (for Chronic Lesions) - In cases where a "Biomechanical lesion" or "Restriction" is caused by calcified tissue or chronic scarring, we use Shockwave Therapy London to break down the restriction before applying manual adjustments.
• Intraosseous strain - A rare concept involving tension within a bone itself, used mainly in osteopathic models.