Flexion–relaxation measures a point at which true lumbar flexion ROM approaches its maximum in asymptomatic subjects. Spinal relaxation phenomenon explains what? Repeated measures experimental study of the effect of repetitive trunk flexion and added mass on the flexion–relaxation phenomenon. Abstract Background The cervical flexion–relaxation phenomenon (FRP) is a neck extensor myoelectric “silence” that occurs during complete cervical flexion. She even started a Facebook group to better understand this phenomenon.. As far as actual scientific research goes, the very first paper on the subject was recently written by Emma Barratt a graduate of Swansea University, UK. The aim of this study was to assess the presence of this phenomenon in the cervical region and to explore the kinematics and EMG parameters in two different experimental conditions. In fact, the term "ASMR" was not even coined by a researcher, but reportedly by a Pittsburg-based team managed by Jennifer Allen in 2010. The Spinal Reflexes are the most basic of all reflexes, but other parts of the central nervous system also contain reflex pathways. The sample consisted of 24 healthy pain-free adults. Association between flexion-relaxation phenomenon and spinal stiffness It is well established that spinal muscles provide the spine its stiffness. Nonsurgical spinal decompression is a type of motorized traction that may help relieve back pain. Spinal anaesthesia is easy to perform and has the potential to provide excellent operating Background Relaxation of the erector spinae often occurs in healthy individuals as full trunk flexion is achieved when bending forward from standing. Reflex movements are movements initiated by sensory receptors, which, by having synaptic contacts within the spinal cord, are a basic level of regulation of muscles or glands. Design. Spinal anaesthesia is induced by injecting small amounts of local anaesthetic into the cerebro-spinal fluid (CSF). This phenomenon, referred to as flexion relaxation is often absent or disrupted (EMG activity persists) in individuals reporting low back pain (LBP). Methods. Background. Which of the following contributes to increased spinal loading? flexion relaxation phenomenon (FRP) of the back muscles is well documented at end-range spinal flexion when standing. It is possible that elevated spinal stiffness is a result of aberrant trunk muscle activity, in addition to potential structural and/or tissue property-related changes in the spine [ 31 , 32 ]. The injection is usually made in the lumbar spine below the level at which the spinal cord ends (L2). However, whether FRP occurs in sitting remains controversial. Although multifactorial , the flexion/relaxation phenomenon can be reliably documented by EMG and discriminates between patients with and without low back pain . Spinal decompression works by gently stretching the spine. THE BIOMECHANICAL AND CLINICAL SIGNIFICANCE OF THE LUMBAR ERECTOR SPINAE FLEXION-RELAXATION PHENOMENON: AREVIEW OF LITERATURE Christopher J. Colloca, DC,a and Richard N. Hinrichs, PhDb ABSTRACT Objectives: The aim of this study was to review the biomedical literature to ascertain the biomechanical and clinical significance of the lumbar erector spinae flexion-relaxation phenomenon … To determine if repeated spinal flexion and loading modulate the deactivation of lumbar muscles near full flexion (flexion–relaxation). inactivity of spinal extensors during full flexion. This also is the point at which lumbar extensor muscle contraction relaxes, allowing the lumbar spine to hang on its posterior ligaments. 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