AOBNMM NMM/OMM key terms

A diagnosable impairment of body framework and function related to the musculoskeletal system: altered tissue texture, asymmetry, restricted motion, tenderness, and possible temperature change. It is the core clinical entity that osteopathic manipulative treatment addresses.

The hands-on diagnosis and treatment of somatic dysfunction using a defined set of techniques, chosen to restore motion and function and to support the body's self-regulatory and healing capacity.

One of the five components of somatic dysfunction: palpable alteration in skin, fascia, or muscle such as tightness, boggy feel, ropiness, or edema, reflecting altered local fluid dynamics and tone.

A component of somatic dysfunction in which a joint or tissue region fails to move through its expected physiologic range in one or more directions, with a characteristic barrier felt before the normal end range.

A discrete, localized area of tenderness within muscle or its fascia, often associated with taut bands and referred pain patterns, distinct from the broader, less localized tenderness of a trigger point syndrome.

The limit of active, voluntary motion in a joint or tissue, reached before the anatomic barrier; treatment seeks to restore motion up to this normal boundary rather than beyond it.

The hard limit imposed by the physical structure of a joint or tissue, beyond which motion cannot occur without injury. It lies past the physiologic barrier and marks the absolute end of possible movement.

A pathologic limitation of motion occurring before the normal physiologic barrier, caused by somatic dysfunction, scarring, or spasm; treatment aims to move the barrier toward the physiologic limit.

The quality of resistance perceived by the examiner at the limit of passive motion, such as springy, hard, or boggy, which helps distinguish normal capsular, muscular, or bony restriction.

The arc through which a joint or region is moved by the examiner without patient effort. It is used to assess joint play, end feel, and the presence of restrictive barriers during diagnosis and treatment.

Small accessory movements within a joint, such as glide and rotation, that are not under voluntary control but are necessary for full painless motion. Loss of joint play signals articular somatic dysfunction.

A direct technique in which the patient voluntarily contracts muscles in a specific direction against examiner resistance while the physician controls position, thereby lengthening shortened tissues and restoring motion.

The brief reduction in muscle tone and increased ease of stretch that follows an isometric contraction, used in muscle energy technique to gain length and motion after the patient relaxes.

A direct or indirect technique applying sustained, gentle traction and pressure to fascial planes to reduce restriction and restore normal tissue glide and motion.

An indirect technique in which the physician follows the tissue's own preferred direction of motion and waits for release, allowing the body to unwind fascial strain patterns without force.

A manipulative approach in which the physician engages the restrictive barrier and applies force toward it to restore motion, as in muscle energy, high-velocity low-amplitude, and articulatory methods.

A manipulative approach in which the physician moves the affected region away from the restrictive barrier, following the direction of ease, and waits for spontaneous tissue release before returning to neutral.

A direct technique using a rapid, short-thrust force applied at or near the restrictive barrier after positioning and locking, intended to restore motion with minimal patient effort.

An indirect technique that places the body in a position of ease mimicking the original strain, holds it briefly to allow neuromuscular reset, and then returns slowly to neutral to reduce tender-point activity.

A gentle palpatory approach assessing and treating rhythmic motion of the cranial bones, membranes, and cerebrospinal fluid to address strain patterns affecting the whole body.

A model describing inherent rhythmic motion of the brain and spinal cord, fluctuation of cerebrospinal fluid, mobility of cranial membranes, articular mobility of cranial bones, and involuntary sacral motion, assessed in cranial osteopathy.

The palpable cyclic motion attributed to the primary respiratory mechanism, typically described as a slow wave distinct from respiratory or cardiac rates and used to gauge cranial strain and response to treatment.

A set of gentle techniques addressing restricted mobility or motility of internal organs and their fascial attachments, aiming to restore normal motion and autonomic balance.

A rhythmic compression and release applied to the thorax, abdomen, or extremities to promote movement of lymph and venous blood and support immune and fluid balance.

A region of the spinal cord where afferent input from a dysfunctional area heightens motor neuron excitability, producing exaggerated reflex responses and perpetuating somatic dysfunction.

A reflex in which dysfunction of an internal organ produces altered somatic tone, tenderness, or texture in associated spinal segments and their myotomes and dermatomes.

A reflex in which musculoskeletal or somatic dysfunction influences the function of an internal organ via shared spinal segmental pathways, potentially contributing to visceral symptoms.

A discrete, small, edematous or stringy tender point located in specific fascial or lymphatic regions that is associated with dysfunction of a particular internal organ and used in diagnosis and treatment.

A specific, reproducible tender point in muscle or fascia associated with a strain pattern and treated with strain-counterstrain positioning; distinct from Chapman's points.

The process of identifying the specific spinal or regional level of somatic dysfunction and its associated reflex effects, guiding targeted treatment and linking findings to visceral or neurologic function.

Altered motion or position of the sacroiliac joint complex, diagnosed by landmark asymmetry and motion testing, and treated with direct or indirect techniques to restore pelvic balance.

The small, rhythmic articular movement of cranial bones at their sutures, assessed by gentle palpation and considered part of the primary respiratory mechanism in osteopathic practice.

Systematic observation of standing and seated alignment, including plumb line, spinal curves, and limb symmetry, to identify patterns that may reflect or perpetuate somatic dysfunction.

Observation and interpretation of the walking cycle, including stance, swing, and pelvic and spinal motion, to identify asymmetries or compensations relevant to musculoskeletal diagnosis and treatment planning.

The use of trained touch to detect tissue texture, temperature, asymmetry, tenderness, and motion restriction, forming the hands-on basis for identifying and localizing somatic dysfunction.

A systematic regional examination documenting asymmetry, range of motion, tissue texture, tenderness, and alignment, typically recorded in a standard format to communicate findings and guide treatment.

The process of explaining the proposed manipulative treatment, its alternatives, risks, and benefits, and obtaining the patient's agreement before proceeding, documented in the record.

A condition in which manipulative treatment could cause harm, such as unstable fracture, malignancy at the site, infection, or severe osteoporosis, requiring modification or avoidance of certain techniques.