Blue Portance · Living reference
Clear definitions and independent references to understand the terms used in our articles.
94 published terms
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The definitions
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The pelvic floor is a deep group of muscles and connective tissues located in the lower part of the pelvis. It contributes to the support of the pelvic organs, to sphincter function and to the mechanical coordination of the abdominopelvic complex.
4 references cited Scope and limits in the entry
Pelvic incidence is an anatomical angle specific to each individual, fixed at skeletal maturity. It largely determines the sagittal organization of the pelvis and spine and does not vary with posture.
5 references cited Scope and limits in the entry
Pelvic mobility is the pelvis's ability to change orientation relative to the spine and the femurs: forward or backward (anterior and posterior pelvic tilt), sideways (lateral tilt) and in rotation.
2 references cited Scope and limits in the entry
Pelvic tilt (PT) is the angle that measures the orientation of the pelvis in the sagittal plane. It increases when the pelvis tilts posteriorly and decreases when it tilts anteriorly: it is a positional parameter, which varies with posture.
3 references cited Scope and limits in the entry
The perineum is the region at the lower part of the pelvis, between the thighs. It includes skin, muscle, fascial, vascular and nerve structures, and it is also an area that may bear load when sitting.
4 references cited Scope and limits in the entry
Peripheral sensitization is increased responsiveness and reduced threshold of peripheral nociceptive neurons to the stimulation of their receptive fields (IASP definition).
3 references cited Scope and limits in the entry
A deep muscle of the pelvic-gluteal region connecting the sacrum to the femur and contributing in particular to rotation and stabilization of the hip.
2 references cited Scope and limits in the entry
Posterior pelvic tilt refers to a backward tilting of the pelvis, which tends to reduce the lumbar curve. It may correspond to a person’s natural pelvic orientation or to a movement adopted depending on the position.
5 references cited Scope and limits in the entry
In the SBNFA™ framework, postural adaptability refers to a person's functional capacity to continuously adjust their body organization (maintaining it, modifying it, redistributing their points of support) according to the task, the environment, the available support and their functional state at the moment.
3 references cited Scope and limits in the entry
Postural balance is the ability to keep or restore the projection of the center of mass within the base of support, both at rest and in motion. When sitting, it involves the trunk, the pelvis and the hips.
3 references cited Scope and limits in the entry
A postural compensation is an adjustment by which a region of the body changes its position or its activity to maintain a function (balance, horizontal gaze, performing a task) in the face of a load, a limitation or an imbalance.
1 references cited Scope and limits in the entry
Postural control is the function by which the nervous system controls the body’s position in space, with two objectives: orientation of body segments relative to one another and to the environment, and balance.
2 references cited Scope and limits in the entry
Postural variability refers to fluctuations in posture over time. It is measured in particular through displacements of the center of pressure and is neither good nor bad in itself.
2 references cited Scope and limits in the entry
In the SBNFA™ framework, prolonged sitting intolerance refers to a reduction in how long a person can stay seated before discomfort, pain, numbness, fatigue or a need to change position appears or worsens.
1 references cited Scope and limits in the entry
Proprioception is the body’s ability to perceive the position, movement and effort of its various parts without needing to look at them.
4 references cited Scope and limits in the entry
The pudendal nerve arises mainly from the sacral roots S2 to S4. It provides a large share of the sensory and motor innervation of the perineum and the external genitalia.
4 references cited Scope and limits in the entry
Neuropathic pain in the territory of the pudendal nerve (perineum, external genitalia, anal region), often made worse by sitting.
5 references cited Scope and limits in the entry
