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Pain And Pressure Or Threshold

Antonio Russo, Gianluca Coppola, Francesco Pierelli, Vincenzo Parisi, Marcello Silvestro, Alessandro Tessitore, Gioacchino Tedeschi
Background: It is well-known that both inter- and intra-individual differences exist in the perception of pain; this is especially true in migraine, an elusive pain disorder of the head. Although electrophysiology and neuroimaging techniques have greatly contributed to a better understanding of the mechanisms involved in migraine during recent decades, the exact characteristics of pain threshold and pain intensity perception remain to be determined, and continue to be a matter of debate. Objective: The aim of this review is to provide a comprehensive overview of clinical, electrophysiological, and functional neuroimaging studies investigating changes during various phases of the so-called "migraine cycle" and in different migraine phenotypes, using pain threshold and pain intensity perception assessments...
2018: Frontiers in Neurology
S M Walker, H O'Reilly, J Beckmann, N Marlow
BACKGROUND: Conditioned pain modulation is a potential biomarker for risk of persistent pain. As early-life experience can alter subsequent somatosensory processing and pain response, we evaluated conditioned pain modulation after extremely preterm birth. METHODS: This observational study recruited extremely preterm (<26 weeks gestation; n=98) and term-born control (n=48) young adults (19-20 yr) from the longitudinal EPICure cohort. Pressure pain threshold (PPT; variable test stimulus lower leg) was measured before, during, and after a conditioning stimulus (contralateral hand immersion; 5°C water; 30 s)...
September 2018: British Journal of Anaesthesia
Scott W Cheatham, Kyle R Stull
BACKGROUND: Foam rolling has become a popular form of self-myofascial release or roller massage among health and fitness professionals. Due to this popularity, foam roller devices can be found in many clinical and fitness settings. Despite the popularity, there are still several unknowns regarding foam rolling such the optimal technique. Specifically, there is a lack of research analyzing different foam roll techniques such as combining active joint motion with foam rolling. PURPOSE: The purpose of this study was to compare the effects of a foam rolling session to the left quadriceps with active joint motion and without joint motion on passive knee flexion range of motion (ROM) and pressure pain thresholds (PPT)...
July 2018: Journal of Bodywork and Movement Therapies
Leonid Kalichman, Inbar Levin, Itzhak Bachar, Elisha Vered
BACKGROUND: Kinesio taping is a possible therapeutic modality for myofascial pain, nevertheless, very scarce research has been performed on this subject. OBJECTIVE: To evaluate the immediate and short-term effect of kinesio taping application on myofascial trigger points (MTrPs) and pressure pain thresholds (PPTs) in the upper trapezius and gastrocnemius muscles. METHODS: Two randomized, single-blinded, controlled trials were simultaneously executed on the upper trapezius and gastrocnemius muscles...
July 2018: Journal of Bodywork and Movement Therapies
Safoora Ebadi, Noureddin Nakhostin Ansari, Tannaz Ahadi, Ehsan Fallah, Bijan Forogh
BACKGROUND AND DESIGN: Chronic nonspecific low back pain (CNSLBP) has major socioeconomic as well as personal impact in many industrialized and developing countries. Physiotherapy is a common intervention for this group of patients and using anti-pain physical modalities is a common part of the physical therapy. In a randomized controlled trial we investigated the immediate effect of the Diadynamic current in comparison to TENS on reducing the pain in patients suffering from non specific chronic low back pain...
July 2018: Journal of Bodywork and Movement Therapies
Marion Strupf, Britta Fraunberger, Karl Messlinger, Barbara Namer
Introduction Migraine is characterized by cycling phases (interictal, preictal, ictal and postictal) with differing symptoms, while in chronic tension type headache pain phases are fluctuating. The question we asked is whether these phases are associated with changes in parameters of somatosensation and axon-reflex erythema. Methods Patients with episodic migraine and chronic tension type headache were examined psychophysically in the interictal, preictal and ictal phase and healthy subjects on five different test days...
August 12, 2018: Cephalalgia: An International Journal of Headache
Tomasz Cudejko, Martin van der Esch, Josien C van den Noort, Judith J M Rijnhart, Marike van der Leeden, Leo D Roorda, Willem Lems, Gordon Waddington, Jaap Harlaar, Joost Dekker
OBJECTIVE: To evaluate whether improvement of proprioception, pain or dynamic knee instability mediate the effect of wearing a soft knee brace on activity limitations in persons with knee osteoarthritis (OA). METHODS: Exploratory analysis from 44 participants with knee OA and self-reported knee instability in a laboratory trial evaluating the effect of wearing a commercially available soft knee brace. Activity limitations were assessed with the 10-meter walk test and the Get up and Go test...
August 12, 2018: Arthritis Care & Research
Mary Kamal Nassif Takla
BACKGROUND: Electrotherapeutic modalities have proven to be one of the best therapeutic options for myofascial pain syndrome, targeting the myofascial trigger points (MTrPs). Combined therapy (CT) is described with paucity in literature as the application of ultrasound (US) and electrical stimulating current concurrently and at the same site. AIM: The aim was to compare between low-frequency, high-intensity burst transcutaneous electrical nerve stimulation CT (burst-TENS-CT) and medium-frequency, low-intensity amplitude modulated frequency CT (AMF-CT) on upper trapezius active MTrPs (A-MTrPs)...
August 10, 2018: Physiotherapy Research International: the Journal for Researchers and Clinicians in Physical Therapy
Albert F Moraska, Robert C Hickner, Rachael Rzasa-Lynn, Jay P Shah, Jonathan R Hebert, Wendy M Kohrt
OBJECTIVE: To investigate changes in nutritive blood flow as well as interstitial glucose and lactate within an active myofascial trigger point (MTrP) following massage. DESIGN: Randomized, placebo-controlled trial. SETTING: Subjects were recruited from the general population; procedures were conducted at a research center affiliated with a university hospital. PARTICIPANTS: Twenty-five adults (18-49 years old) with episodic or chronic tension-type headache and an active MTrP in the upper trapezius muscle...
August 6, 2018: Archives of Physical Medicine and Rehabilitation
Mari Kalland Knapstad, Stein Helge Glad Nordahl, Ingvill Fjell Naterstad, Tove Ask, Jan Sture Skouen, Frederik Kragerud Goplen
OBJECTIVES: A tool for measuring neck pain in patients with dizziness is needed to further investigate the relationship between the two symptoms. The objective of this study was to examine the reliability and validity of a hand-held pressure algometer in measuring pressure pain threshold (PPT) in different cervical regions of dizzy patients. METHODS: PPT was measured at two bilateral standardized sites of the neck by a trained physiotherapist in 50 patients with dizziness...
August 7, 2018: Physiotherapy Research International: the Journal for Researchers and Clinicians in Physical Therapy
Tibor M Szikszay, Kerstin Luedtke, Piekartz Harry von
Objectives : To investigate differences in pressure pain thresholds (PPTs) and longitudinal mechanosensitivity of the greater occipital nerve (GON) between patients with side-dominant head and neck pain (SDHNP) and healthy controls. Evaluation of neural sensitivity is not a standard procedure in the physical examination of headache patients but may influence treatment decisions. Methods : Two blinded investigators evaluated PPTs on two different locations bilaterally over the GON as well as the occipitalis longsitting-slump (OLSS) in subjects with SDHNP ( n  = 38)) and healthy controls ( n  = 38)...
August 2018: Journal of Manual & Manipulative Therapy
M Melia, B Geissler, J König, H J Ottersbach, M Umbreit, S Letzel, A Muttray
BACKGROUND: The assessment of pressure pain has become an integral part in pain research. The distribution of pressure under a plunger can be uneven. However, measurements based on conventional devices show the applied force or mean pressure, failing to take local pressure peaks into account. Our main question was whether peak pressures under the probe are responsible for pain onset. METHODS: A force-controlled algometer was fitted with a newly developed pressure-indicating film...
August 3, 2018: European Journal of Pain: EJP
S Holden, C L Straszek, M S Rathleff, K K Petersen, E M Roos, T Graven-Nielsen
Patellofemoral pain (PFP) is a common recurring knee condition in young females, characterized by pressure hyperalgesia and reduced pain inhibitory control. This study investigated anti-nociceptive and pro-nociceptive pain profiles in young females with long-standing (>5 years) PFP (current-PFP), to those who recovered from adolescent PFP (recovered-PFP), and pain-free controls. This pre-registered, assessor blinded, cross-sectional study, included 87 females younger than 25 years: 36 current-PFP, 22 recovered-PFP, and 29 pain-free controls...
August 1, 2018: Pain
K Kamm, A Pomschar, R Ruscheweyh, A Straube, M Reiser, I Hernádi, J F László, B Ertl-Wagner
BACKGROUND: Magnetic field therapy is a popular approach to pain therapy, but scientific evidence on treatment effects or even effects on sensory and pain perception in healthy controls is scarce. METHODS: In the present randomized, placebo-controlled study, we investigated the influence of static magnetic field exposure on sensory (touch) and pain (pinprick, pressure and heat) perception. 18 healthy volunteers (age: 23 ± 2 years, 9 females) underwent three 10 min static magnetic field exposures using field strengths of 0 T (placebo), 1...
August 3, 2018: European Journal of Pain: EJP
Carmen M Galvez-Sánchez, Cristina Muñoz Ladrón de Guevara, Casandra I Montoro, María José Fernández-Serrano, Stefan Duschek, Gustavo A Reyes Del Paso
BACKGROUND: Fibromyalgia syndrome (FMS) is a chronic disorder characterized by widespread musculoskeletal pain and diffuse tenderness, accompanied by complaints including morning stiffness, fatigue, insomnia and affective symptoms. In addition, affected patients frequently experience cognitive impairments such as concentration difficulties, forgetfulness or problems in planning and decision-making. These deficits are commonly ascribed to interference between nociceptive and cognitive processing...
2018: PloS One
Meghan A Brown, Emma J Stevenson, Glyn Howatson
Tart Montmorency cherry concentrate (MC) has been reported to attenuate the symptoms of exercise-induced muscle damage (EIMD) and to accelerate exercise recovery, which has been attributed to its high anti-inflammatory and antioxidant properties. Although these data are promising, there are no data regarding exclusively female populations. Therefore, the aim of this investigation was to examine the efficacy of MC on recovery following EIMD in females. In a randomised, double-blind, placebo-controlled study, twenty physically active females (mean ± SD age 19 ± 1 y; stature 167 ± 6 cm; body mass 61...
July 28, 2018: European Journal of Sport Science
Michiel J van Esdonk, Ian Lindeman, Pieter Okkerse, Marieke L de Kam, Geert J Groeneveld, Jasper Stevens
A battery of pain models can be used in clinical trials to investigate the efficacy and to establish the concentration-effect relationship of novel analgesics. This study quantified the pharmacokinetics (PK) of pregabalin after a single oral dose of 300 mg and the pharmacodynamics (PD) on the pain tolerance threshold (PTT) of the cold pressor, electrical stimulation, the pressure pain model, and on the pain detection threshold of a contact heat pain model. The PK were best described using a one-compartment model with lag time, linear absorption, and linear elimination...
July 24, 2018: CPT: Pharmacometrics & Systems Pharmacology
Renata J Troncoso, Daniel E Herzberg, Constanza S Meneses, Heine Y Müller, Marianne P Werner, Hedie Bustamante
Background: Tail docking of dairy cows is a painful procedure that affects animal welfare level. The aims of this study were first to evaluate the response to mechanical and thermal stimulation, and second to determine the superficial temperature of the stump of tail-docked dairy cows. Methods: One hundred and sixty-four dairy cows were enrolled. From these, 133 cows were assigned to the tail-docked (TD) group and 31 cows were selected as control animals. The following sensory assessments to evaluate pain in tail-docked cows were performed...
2018: PeerJ
Young Hak Roh, Sangwoo Kim, Hyun Sik Gong, Goo Hyun Baek
Patients with carpal tunnel syndrome (CTS) often show bilaterally increased pain sensitivity and widespread symptoms. We evaluated the influence of centrally mediated symptoms on functional outcomes of carpal tunnel release (CTR). A total of 120 patients with surgically treated CTS were enrolled. Centrally mediated symptoms were preoperatively measured by administering a self-reported central sensitization inventory (CSI) questionnaire and peripheral sensitization was measured by assessing patient's pressure pain thresholds (PPT) in the forearm...
July 24, 2018: Scientific Reports
Do Hyun Kim, Jae Jin Lee, Joshua Sung Hyun You
BACKGROUND: Hamstring shortness is the most common musculoskeletal condition in sports athletes, which often contributes to hamstring strain injury. To effectively mitigate the hamstring shortness, contemporary HR, SCS, and IASTM soft tissue techniques have been used. The best practical evidence about the therapeutic effects and the biomechanical mechanisms underpinning these manual techniques remain unknown. OBJECTIVE: The purpose of this study was to compare the effects of HR, SCS, and IASTM techniques on improving hamstring and quadriceps muscle strength, related ratio, knee joint passive stiffness, and pain threshold...
July 20, 2018: Journal of Back and Musculoskeletal Rehabilitation
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