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Pain And Pressure Or Threshold

Pablo de la Coba, Stephen Bruehl, Stefan Duschek, Gustavo A Reyes Del Paso
INTRODUCTION: Resting blood pressure (BP) has been found to be inversely associated with evoked pain responsiveness in healthy populations. However, some reports suggest that BP-related pain modulation may be dysfunctional in chronic pain patients. This study examined whether BP-related pain modulation, indexed by both static and dynamic evoked pain responses, is altered in fibromyalgia (FM) patients compared to pain-free individuals. METHOD: Pain threshold and tolerance as static evoked pain measures and slowly repeated evoked pain (SREP) as a dynamic evoked pain index were measured in 30 FM patients and 27 healthy controls...
October 12, 2018: International Journal of Psychophysiology
Raúl Ferrer-Peña, Daniel Muñoz-García, César Calvo-Lobo, Josué Fernández-Carnero
Objectives: The aims of this study were twofold: 1) to evaluate the differences in pain sensitivity of patients with greater trochanteric pain syndrome (GTPS) and 2) to examine the association between pain expansion, pain severity, and pain-related central sensitization somatosensory variables in patients with GTPS. Study Design: A cross-sectional study. Setting: Primary health care centers. Subjects: The sample consisted of 49 participants with a mean age of 48...
October 11, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Hameeda A Naimi, Anna S Nagle, Naomi N Vinod, Hiren Kolli, Derek Sheen, Stefan G De Wachter, John E Speich, Adam P Klausner
AIMS: There is currently no standardized method of characterizing changes in bladder sensation during bladder filling outside of the urodynamics laboratory. The purpose of this investigation was to characterize real-time bladder sensation events using a sensation meter during oral hydration in individuals with normal bladder function. METHODS: Participants enrolled in an accelerated hydration study drank 2 L Gatorade-G2® and utilized a sensation meter to record real-time bladder sensation (0-100%), verbal sensory thresholds, and sensation descriptors of "tense," "pressure," "tingling," "painful," and "other" for two consecutive fill-void cycles...
October 12, 2018: Neurourology and Urodynamics
Ricardo De Souza Tesch, Fabrício Sanches Fernandes, Eduardo Esberard Favilla, Gilberto Senechal De Goffredo Filho, Cristiana Pessoa De Queiroz Faria Goes
OBJECTIVE: To compare the levels of non-specific physical symptoms and pressure pain threshold (PPT) found in patients with masticatory myofascial pain with those found in patients with temporomandibular arthralgia alone. METHODS: The study followed an observational and cross-sectional protocol. A total of 64 female patients were evaluated for the presence of painful TMD, non-specific physical symptom levels, and PPT. RESULTS: The group of patients with masticatory myofascial pain presented a lower mean for PPT as well as a higher mean for standardized T-Scores for non-specific physical symptom levels...
October 12, 2018: Cranio: the Journal of Craniomandibular Practice
Hyochol Ahn, Robert Suchting, Adam J Woods, Hongyu Miao, Charles Green, Raymond Y Cho, Eunyoung Choi, Roger B Fillingim
Purpose: Previous studies have indicated that transcranial direct current stimulation (tDCS) with the anode over the motor cortex and the cathode over the contralateral supraorbital region is effective in reducing clinical pain in patients with chronic pain, but these studies have not focused on experimental pain sensitivity. Therefore, the aim of this study was to examine the effect of tDCS on experimental pain sensitivity in older adults with knee osteoarthritis (OA). Patients and methods: Forty community-dwelling participants aged 50-70 years with knee OA pain were randomly assigned to receive five daily sessions of 2 mA tDCS for 20 minutes (n = 20) or sham tDCS (n = 20) using a parallel group design...
2018: Journal of Pain Research
Darren John Beales, Odette Gaynor, Jasmine Harris, Robyn Fary, Peter Bruce O'Sullivan, Helen Slater, Thomas Graven-Nielsen, Thorvaldur Skuli Palsson
Background and aims For some women, lumbopelvic pain (LPP) developed during pregnancy becomes a continuing post-partum problem. Increased understanding of potential prognostic factors is required. This study investigated whether active straight leg raise (ASLR), sleep dysfunction and pressure pain sensitivity during pregnancy are correlated with LPP intensity and quality, disability, and physical health-related quality of life (HRQoL) post-partum. Methods An exploratory, prospective cohort study design was used...
October 11, 2018: Scandinavian Journal of Pain
Letícia Bojikian Calixtre, Ana Beatriz Oliveira, Lianna Ramalho de Sena Rosa, Susan Armijo-Olivo, Corine Mirjam Visscher, Francisco Alburquerque-Sendín
BACKGROUND: Studies exploring interventions targeting the cervical spine to improve symptoms in patients with temporomandibular disorders (TMD) are limited. OBJECTIVES: To determine whether mobilization of the upper cervical region and craniocervical flexor training decreased orofacial pain, increased mandibular function and pressure pain thresholds (PPT) of the masticatory muscles, and decreased headache impact in women with TMD when compared to no intervention...
October 11, 2018: Journal of Oral Rehabilitation
Lisa C Carlesso, Neil A Segal, Laura Frey-Law, Yuqing Zhang, Na Lu, Michael Nevitt, Core E Lewis, Tuhina Neogi
OBJECTIVES: Why some individuals develop pain with knee osteoarthritis (OA) is not clear. We sought to identify pain susceptibility phenotypes (PSPs) and their relation to incident persistent knee pain (PKP) 2 years later. METHODS: We identified individuals free of PKP from the Multicenter Osteoarthritis Study, a longitudinal cohort of older adults with or at risk of knee OA. Latent class analysis was used to determine PSPs that may contribute to development of PKP apart from structural pathology: widespread pain, poor sleep, psychological factors and quantitative sensory tests (QST) (i...
October 11, 2018: Arthritis & Rheumatology
T D Dissanayaka, M Farrell, M Zoghi, G F Egan, S Jaberzadeh
BACKGROUND: Supra-threshold scaling of multiple pressure-pain sensations involves delivery of varied stimulus intensities, either via stimulus-dependent or response-dependent manner, and recording of subjective pain ratings by participants. The focus of this study was to determine the intra- and inter-session reliability of pain intensity and pain unpleasantness ratings related to pressure-pain thresholds (PPTs) of just noticeable pain (JNP), weak pain (WP) and moderate pain (MP) among healthy individuals...
October 9, 2018: Somatosensory & Motor Research
Patrick B Wilson
Previous studies indicate that ginger root has pain-relieving properties, but these effects have not been thoroughly examined in the context of distance running. The purpose of this randomized, double-blind, placebo-controlled trial was to determine whether ginger root supplementation reduces muscle soreness and dysfunction from downhill running. Thirty-two runners (10 women, 22 men) were pair-matched and randomized to 1.425 g/day of ginger root or placebo for 5 days. A 40-minute downhill (-7.5%) run was completed on day 3...
October 9, 2018: Journal of Dietary Supplements
Mehmet Cem Özden, Berkem Atalay, Ali Veysel Özden, Abdülkadir Burak Çankaya, Erdinç Kolay, Sami Yıldırım
OBJECTIVE: This randomized, single-center clinical trial aimed to compare the efficacy of superficial dry needling (SDN) and deep dry needling (DDN) in patients with myofascial temporomandibular disorder (MTMD) related to the masseter muscle. METHODS: Forty patients showing MTMD with trigger points in the masseter muscle were randomly assigned to groups. Dry needling of the masseter muscle was performed once per week for three weeks. Pressure pain threshold (PPT) measurements, visual analog scale scores, and maximal jaw opening were assessed...
October 9, 2018: Cranio: the Journal of Craniomandibular Practice
Sigrid Schuh-Hofer, Janina Fischer, Andreas Unterberg, Rolf-Detlef Treede, Rezvan Ahmadi
BACKGROUND: Spinal cord stimulation (SCS) is an established treatment option for patients with refractory chronic pain conditions. While effects of SCS on dorsal horn neuronal circuitries are intensively studied, current knowledge on the impact of SCS on descending pain pathways is scarce and relies on preclinical data. We aimed to address this topic and hypothesized a significant effect of SCS on descending pain modulation. In light of current efforts to determine the sensitivity of "static" versus "dynamic" somatosensory parameters to characterize pathophysiological pain conditions, all SCS patients were carefully investigated using both classes of somatosensory outcome parameters...
October 6, 2018: Acta Neurochirurgica
Henrik Bjarke Vaegter, Louise Kathrine Bjerregaard, Mia-Maja Redin, Sara Hartung Rasmussen, Thomas Graven-Nielsen
PURPOSE: Exercise decreases pain sensitivity known as exercise-induced hypoalgesia (EIH). However, the consistency of EIH after an acute exercise protocol based on subjective ratings of perceived exertion has been questioned. Objectives were to compare the effect on pressure pain thresholds (PPTs) after bicycling with work-rate at the lactate threshold compared with quiet rest, and investigate between-session reliability of EIH. METHODS: Thirty-four healthy subjects completed three sessions with 7 days in-between...
October 5, 2018: European Journal of Applied Physiology
Jang Woo Lee, Young-Ho Lim, Yu Hui Won, Dong Hyun Kim
BACKGROUND: Low back pain (LBP) is an exceedingly common medical condition that results in significant medical and social burden. Sitting for a long period is a common aggravating factor for LBP. Although seat cushion is known to promote comfort, relieve pressure, and correct posture, its effect on chronic LBP has not yet been investigated. This study aimed to evaluate the clinical effect of gel seat cushion on chronic LBP in occupational drivers. METHODS: Occupational drivers with chronic LBP lasting for >6 months were recruited...
October 2018: Medicine (Baltimore)
Kelsey M Nation, David W Dodick, Edita Navratilova, Frank Porreca
Background Loss of conditioned pain modulation/diffuse noxious inhibitory controls has been demonstrated in patients with migraine and medication overuse headache. We hypothesized that exposure to acute migraine medications may lead to dysregulation of central pain modulatory circuits that could be revealed by evaluating diffuse noxious inhibitory controls and that prior noxious stimulus is required for a loss of the diffuse noxious inhibitory control response in rats exposed to these medications. Methods Rats were "primed" by continuous infusion of morphine or one of two doses of sumatriptan...
October 4, 2018: Cephalalgia: An International Journal of Headache
Marwa Shafiek Mustafa Saleh, Afaf Mohamed Mahmoud Botla, Noran Ahmed Mohammed Elbehary
BACKGROUND: Core stability exercises have been widely advocated for management of patients with different musculoskeletal conditions, even though its effect on postpartum lumbopelvic pain (LPP) has not been fully investigated. OBJECTIVE: This study was conducted to investigate the effect of core stability exercises on postpartum LPP. METHODS: Thirty four women suffering from postpartum LPP were randomly assigned to the study or control group...
September 21, 2018: Journal of Back and Musculoskeletal Rehabilitation
Magda Rakowska, Katarzyna Królikowska, Katarzyna Jobs, Małgorzata Placzyńska, Bolesław Kalicki
Urolithiasis is a disease characterized by the presence of stones in the kidney or urinary tract. It is often detected accidentally during an ultrasound or an abdominal x-ray performed for other reasons. However, the first symptom of kidney stone disease can be severe pain called renal colic. Pain caused by a colic attack is characterized by sudden onset. In half of the cases it is associated with nausea or vomiting and can lead to hypotension and fainting. The exact location and radiation of the pain depends on the location of the stone in the urinary tract...
2018: Developmental Period Medicine
Daniel D Hodgson, Camila D Lima, Jonathan L Low, David G Behm
Background: Roller massagers are popular devices that are used to improve range of motion (ROM), enhance recovery from muscle soreness, and reduce pain under acute conditions. However, the effects of roller massage training and training frequency are unknown. Purpose: The objective was to compare two different roller massage training frequencies on muscle performance. Study Design: Randomized controlled intervention study. Methods: Twenty-three recreationally active university students were randomly allocated to three groups: control (n=8;), rolling three (3/W; n=8;) and six (6/W; n=7) times per week for four weeks...
August 2018: International Journal of Sports Physical Therapy
Clécio Vier, Marcelo Anderson Bracht, Marcos Lisboa Neves, Maíra Junkes-Cunha, Adair Roberto Soares Santos
Background: Low back pain (LBP) has more than doubled in the last 20 years, probably influenced by biopsychosocial factors. Noninvasive treatments have been applied in individuals with chronic nonspecific LBP as spinal manipulation and pain education. However, the neurophysiological effects of these treatments are not clear. The aim of this research is to verify the pain control, functional and neurophysiological effects of spinal manipulation, and pain education in individuals with chronic nonspecific LBP...
September 2018: Integrative medicine research
Søren O'Neill, Johanne Brinch Larsen, Casper Nim, Lars Arendt-Nielsen
Background and aims The choice of testing site for quantitative sensory testing (QST) of pain sensitivity is important and previous studies have demonstrated patterns in pain sensitivity within discrete areas in different body regions. Some areas are characterized by a relatively high degree of spatial pain discrimination and recognizable patterns of pain referral, whilst others are not. The lumbar region is likely to have relatively low pain acuity and overlapping of pain referral. The current study was conducted to determine whether patterns of pain sensitivity (detection thresholds) could be identified in the lower back, whether differences in such patterns exist between different groups and whether such patterns could help identify a clinical source of pain and localized increased pain sensitivity...
September 27, 2018: Scandinavian Journal of Pain
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