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Peripheral fatigue

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https://www.readbyqxmd.com/read/28732481/central-and-peripheral-fatigue-development-in-the-shoulder-muscle-with-obesity-during-an-isometric-endurance-task
#1
Mojdeh Pajoutan, Mahboobeh Ghesmaty Sangachin, Lora A Cavuoto
BACKGROUND: Fatigue increases the likelihood of developing work-related musculoskeletal disorders and injury. Due to the physiological and neuromuscular changes that accompany obesity, it may alter the fatigue development mechanism and exacerbate injury risk. The upper extremities have the highest incidence rates for work-related musculoskeletal disorders. Therefore, the goals of this study were to investigate the effect of obesity on central vs. peripheral fatigue as well as on the physical signs of fatigue on the middle deltoid muscle...
July 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28721090/muscle-injections-with-lidocaine-improve-resting-fatigue-and-pain-in-patients-with-chronic-fatigue-syndrome
#2
Roland Staud, Taylor Kizer, Michael E Robinson
OBJECTIVE: Patients with chronic fatigue syndrome (CFS) complain of long-lasting fatigue and pain which are not relieved by rest and worsened by physical exertion. Previous research has implicated metaboreceptors of muscles to play an important role for chronic fatigue and pain. Therefore, we hypothesized that blocking impulse input from deep tissues with intramuscular lidocaine injections would improve not only the pain but also fatigue of CFS patients. METHODS: In a double-blind, placebo-controlled study, 58 CFS patients received 20 mL of 1% lidocaine (200 mg) or normal saline once into both trapezius and gluteal muscles...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28719890/effect-of-neoadjuvant-nab-paclitaxel-plus-gemcitabine-therapy-on-overall-survival-in-patients-with-borderline-resectable-pancreatic-cancer-a-prospective-multicenter-phase-ii-trial-nac-ga-trial
#3
Ken-Ichi Okada, Toshio Shimokawa, Seiko Hirono, Manabu Kawai, Masayuki Sho, Sohei Satoi, Ippei Matsumoto, Hidetoshi Eguchi, Yoshiaki Murakami, Suguru Yamada, Mariko Doi, Hiroki Yamaue
We conducted a prospective multicenter phase II trial of patients with borderline resectable pancreatic carcinoma to investigate the efficacy of neoadjuvant nab-paclitaxel plus gemcitabine therapy on overall survival (OS). The clinical trial primarily evaluated OS time from the first day of protocol therapy as a primary endpoint. The secondary endpoints were recurrence-free survival from the first day of protocol therapy, safety of the protocol therapy (adverse effect), morbidity based on the Clavien Dindo classification of more than III, response rate, preoperative/postoperative tumor marker (CA 19-9, CEA), rate of normalization, reduction rate of the maximum standardized uptake value on positron emission tomography-computed tomography (limited to institutions where positron emission tomography-computed tomography was available), chemotherapeutic effect grade based on Evans' classification, resection rate, R0 resection rate, surgical data (operative time, blood loss, transfusion, postoperative hospital day), overall morbidity rates (reoperation, rate of readmission, mortality), patient rate in postoperative adjuvant therapy (entry rate, completion rate), dose intensity, quality of life regarding fatigue and malaise assessed by the questionnaire of FACIT-F (Japanese version), and peripheral sensory neuropathy assessed by the questionnaire of the FACT/GOG-NTX subscale (version 4; Japanese version)...
July 19, 2017: Oncology
https://www.readbyqxmd.com/read/28715597/the-proposal-of-a-clinical-protocol-to-assess-central-and-peripheral-fatigue-in-myotonic-dystrophy-type-1
#4
S Baldanzi, G Ricci, M Bottari, L Chico, C Simoncini, G Siciliano
DM1 is an autosomal-dominant disorder characterized by muscle weakness, myotonia, and multisystemic involvement. According to current literature fatigue and daytime sleepiness are among the main symptoms of DM1. Oxidative stress has been proposed to be one of the pathogenic factors of fatigue consequent to DM1. In this study, we investigated the dimensions of experienced fatigue and  physiological fatigue in a sample of 26 DM1 patients (17 males, 9 females, mean age 41.6 years, SD±12.7); experienced fatigue has been studied through Fatigue Severity Scale (FSS), and physiological fatigue was measured through an intermittent incremental exercise of the forearm muscles using a myometer; oxidative stress balance markers trend during aerobic exercise test have been collected...
July 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28714825/quadriceps-and-patient-reported-function-in-acl-reconstructed-patients-a-principal-component-analysis
#5
Grant E Norte, Jay N Hertel, Susan A Saliba, David R Diduch, Joseph M Hart
CONTEXT: Assessment of physical function for individuals after ACL reconstruction (ACL-R) is complex and warrants the use of diverse evaluation strategies. To maximize the efficiency of assessment, there is a need to identify tests that provide the most meaningful information about this population. OBJECTIVE: To investigate underlying constructs of quadriceps muscle function that uniquely describe aspects of performance in patients after ACL-R, and establish clinical thresholds for measures able to classify patients with and without ACL-R...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28713089/-peculiarities-of-clinical-psychopathological-phenomenology-of-chronic-neuropathies
#6
Olexandr O Belov, Tetiana P Rysynets, Elena F Shkondina, Iryna S Pototska
INTRODUCTION: The study of psycho-emotional reactions associated with chronic neuropathies, is an important factor of the integrated solution to the problem of treatment and prevention of disorders of the peripheral nervous system. The aim of the research is to study clinical psychopathological phenomenology and personality characteristics of patients suffering from chronic neuropathies. MATERIAL AND METHODS: We examined 115 patients with chronic neuropathies in comparison with 60 healthy persons using a clinical conversation method, shortened multivariable personality questionnaire, The Zung Self-Rating Depression Scale, Spilberger's scale of trait and state anxiety and Symptom Check List-90-Revised questionnaire...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28710747/phase-i-study-of-chimeric-antigen-receptor-modified-t-cells-in-treating-her2-positive-advanced-biliary-tract-cancers-and-pancreatic-cancers
#7
Kaichao Feng, Yang Liu, Yelei Guo, Jingdan Qiu, Zhiqiang Wu, Hanren Dai, Qingming Yang, Yao Wang, Weidong Han
This phase I clinical trial (NCT01935843) is to evaluate the safety, feasibility, and activity of chimeric antigen receptor-engineered T cell (CART) immunotherapy targeting human epidermal growth factor receptor 2 (HER2) in patients with advanced biliary tract cancers (BTCs) and pancreatic cancers (PCs). Eligible patients with HER2-positive (>50%) BTCs and PCs were enrolled in the trial. Well cultured CART-HER2 cells were infused following the conditioning treatment composed of nab-paclitaxel (100-200 mg/m(2)) and cyclophosphamide (15-35 mg/kg)...
July 14, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28708702/exercise-induced-fatigue-in-severe-hypoxia-following-an-intermittent-hypoxic-protocol
#8
Rosie Twomey, James Wrightson, Hannah Fletcher, Stephanie Avraam, Emma Ross, Jeanne Dekerle
PURPOSE: Exercise-induced central fatigue is alleviated following acclimatisation to high altitude. The adaptations underpinning this effect may also be induced with brief, repeated exposures to severe hypoxia. The purpose of this study was to determine whether (i) exercise tolerance in severe hypoxia would be improved following an intermittent hypoxic (IH) protocol and (ii) exercise-induced central fatigue would be alleviated following an IH protocol. METHODS: Nineteen recreationally-active males were randomised into two groups who completed ten 2-h exposures in severe hypoxia (IH: PIO2 82 mmHg; n=11) or normoxia (control; n=8)...
July 13, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28705910/fatigability-exercise-intolerance-and-abnormal-skeletal-muscle-energetics-in-heart-failure
#9
Kilian Weiss, Michael Schär, Gurusher S Panjrath, Yi Zhang, Kavita Sharma, Paul A Bottomley, Asieh Golozar, Angela Steinberg, Gary Gerstenblith, Stuart D Russell, Robert G Weiss
BACKGROUND: Among central and peripheral factors contributing to exercise intolerance (EI) in heart failure (HF), the extent to which skeletal muscle (SM) energy metabolic abnormalities occur and contribute to EI and increased fatigability in HF patients with reduced or preserved ejection fraction (HFrEF and HFpEF, respectively) are not known. An energetic plantar flexion exercise fatigability test and magnetic resonance spectroscopy were used to probe the mechanistic in vivo relationships among SM high-energy phosphate concentrations, mitochondrial function, and EI in HFrEF and HFpEF patients and in healthy controls...
July 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28704311/acute-neuromuscular-and-endocrine-responses-to-two-different-compound-exercises-squat-versus-deadlift
#10
Matthew J Barnes, Adam Miller, Daniel Reeve, Robin Jc Stewart
Anecdotally, it is believed that the deadlift exercise brings about greater levels of central fatigue than other exercises; however no empirical evidence exists to support this view. Additionally, little is known about the acute endocrine response to heavy deadlift exercise and how this may differ to other similar compound exercises. Therefore, the aim of this study was to identify and compare the acute, neuromuscular and endocrine responses to squat and deadlift exercise. Ten resistance trained males completed 8 sets of 2 repetitions at 95 % of one repetition maximum...
July 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28689594/patient-reported-outcomes-and-fatigue-in-patients-with-chronic-hepatitis-c-infection
#11
REVIEW
Pegah Golabi, Mehmet Sayiner, Haley Bush, Lynn H Gerber, Zobair M Younossi
Fatigue is a common symptom. Diagnosis is difficult. Fatigue is often a complex symptom. In the recent years, fatigue has gained considerable amount of attention. It has 2 major types, central and peripheral, which may occur together or alone. Although fatigue has many strong relations with depression and sleep disorders, it is a separate entity. For the diagnosis of fatigue, self-reports and patient-reported outcomes are highly valuable tools because these methods can reflect patients' perceptions. Treating the underlying disease with newly developed direct-acting antivirals often improves the perceived fatigue...
August 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28667459/clinical-pharmacokinetics-and-pharmacodynamics-of-panobinostat
#12
REVIEW
Mathilde Van Veggel, Elsbeth Westerman, Paul Hamberg
Histone deacetylase (HDAC) inhibitors cause an increase in acetylation that leads to an increase in DNA transcription and accumulation of different proteins, reducing cell proliferation and inducing cell death. Panobinostat is a first-in-line HDAC inhibitor approved for treating multiple myeloma in combination with bortezomib and dexamethasone. It is a pan-deacetylase inhibitor and therefore inhibits not only HDAC but also other deacetylases. The main mechanism of action of panobinostat is to inhibit HDAC, which causes cell cycle arrest and apoptosis, leading to it being an antineoplastic drug...
June 30, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28666963/a-novel-kcna1-mutation-in-a-patient-with-paroxysmal-ataxia-myokymia-painful-contractures-and-metabolic-dysfunctions
#13
Paola Imbrici, Concetta Altamura, Francesca Gualandi, Giuseppe Felice Mangiatordi, Marcella Neri, Giovanni De Maria, Alessandra Ferlini, Alessandro Padovani, Maria Cristina D'Adamo, Orazio Nicolotti, Mauro Pessia, Diana Conte, Massimiliano Filosto, Jean-Francois Desaphy
Episodic ataxia type 1 (EA1) is a human dominant neurological syndrome characterized by continuous myokymia, episodic attacks of ataxic gait and spastic contractions of skeletal muscles that can be triggered by emotional stress and fatigue. This rare disease is caused by missense mutations in the KCNA1 gene coding for the neuronal voltage gated potassium channel Kv1.1, which contributes to nerve cell excitability in the cerebellum, hippocampus, cortex and peripheral nervous system. We identified a novel KCNA1 mutation, E283K, in an Italian proband presenting with paroxysmal ataxia and myokymia aggravated by painful contractures and metabolic dysfunctions...
June 28, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28662341/a-phase-ii-study-of-the-c-met-inhibitor-tivantinib-in-combination-with-folfox-for-the-treatment-of-patients-with-previously-untreated-metastatic-adenocarcinoma-of-the-distal-esophagus-gastroesophageal-junction-or-stomach
#14
Shubham Pant, Manish Patel, Carla Kurkjian, Brian Hemphill, Maria Flores, Dana Thompson, Johanna Bendell
BACKGROUND: This phase I/II study was designed to determine the maximum tolerated dose of tivantinib in combination with standard dose FOLFOX for the treatment of patients with advanced solid tumors and to evaluate the safety and efficacy of this combination for patients with previously untreated metastatic adenocarcinoma of the distal esophagus, gastroesophageal (GE) junction, or stomach. METHODS: Patients with advanced solid tumors for which FOLFOX would be appropriate chemotherapy received escalating doses of tivantinib BID (days 1-14) in a standard 3 + 3 design in phase I...
June 29, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28661759/adjuvant-cyclophosphamide-and-docetaxel-with-or-without-epirubicin-for-early-top2a-normal-breast-cancer-dbcg-07-read-an-open-label-phase-iii-randomized-trial
#15
Bent Ejlertsen, Malgorzata K Tuxen, Erik Hugger Jakobsen, Maj-Britt Jensen, Ann Soegaard Knoop, Inger Højris, Marianne Ewertz, Eva Balslev, Hella Danø, Peter Michael Vestlev, Julia Kenholm, Dorte L Nielsen, Troels Bechmann, Michael Andersson, Søren Cold, Hanne Melgaard Nielsen, Else Maae, Dorte Carlsen, Henning T Mouridsen
Purpose Administration of anthracycline and taxane therapy in the adjuvant setting is considered a standard for breast cancer. We evaluated a non-anthracycline-based regimen in TOP2A-normal patients. Patients and Methods In this multicenter, open-label, phase III trial, 2,012 women with early TOP2A-normal breast cancer and at least one high-risk factor were randomly assigned to receive six cycles of docetaxel (75 mg/m(2)) and cyclophosphamide (600 mg/m(2)) every 3 weeks (DC) or three cycles of epirubicin (90 mg/m(2)) and cyclophosphamide (600 mg/m(2)) followed by three cycles of docetaxel (100 mg/m(2); EC-D)...
June 29, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28661071/scheduled-meal-accelerates-entrainment-to-a-6-hours-phase-advance-by-shifting-central-and-peripheral-oscillations-in-rats
#16
L M Ubaldo-Reyes, R M Buijs, C Escobar, M Ángeles-Castellanos
Traveling across several time zones requires a fast adjustment of the circadian system and the differential adjustment speeds of organs and systems results in what is commonly referred as jet lag. During this transitory state of circadian disruption, individuals feel discomfort, appetite loss, fatigue, disturbed sleep and deficient performance of multiple tasks. We have demonstrated that after a 6-h phase advance of the light-dark cycle (LD) scheduled food in phase with the new night onset can speed up re-entrainment...
June 29, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28659838/the-robust-running-ape-unraveling-the-deep-underpinnings-of-coordinated-human-running-proficiency
#17
REVIEW
John Kiely
In comparison to other mammals, humans are not especially strong, swift or supple. Nevertheless, despite these apparent physical limitations, we are among Natures most superbly well-adapted endurance runners. Paradoxically, however, notwithstanding this evolutionary-bestowed proficiency, running-related injuries, and Overuse syndromes in particular, are widely pervasive. The term 'coordination' is similarly ubiquitous within contemporary coaching, conditioning, and rehabilitation cultures. Various theoretical models of coordination exist within the academic literature...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28658591/exploring-the-relationship-of-task-performance-and-physical-and-cognitive-fatigue-during-a-daylong-light-precision-task
#18
Marcus Yung, Rahim Manji, Richard P Wells
OBJECTIVE: Our aim was to explore the relationship between fatigue and operation system performance during a simulated light precision task over an 8-hr period using a battery of physical (central and peripheral) and cognitive measures. BACKGROUND: Fatigue may play an important role in the relationship between poor ergonomics and deficits in quality and productivity. However, well-controlled laboratory studies in this area have several limitations, including the lack of work relevance of fatigue exposures and lack of both physical and cognitive measures...
June 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28658069/components-of-fatigue-mind-and-body
#19
Colin Carriker
Maximal intensity exercise requires significant energy demand. Subsequently, prolonged high intensity effort eventually initiates volitional cessation of the event; often preceded by a sensation of fatigue. Those examining the basis of fatigue tend to advocate either a peripheral or central model to explain such volitional failure. Practitioners and athletes who understand the tenants of fatigue can tailor their exercise regimens to target areas of potential physical or mental limitation. This review examines the rationale surrounding two separate models which postulate the origination of fatigue...
June 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28654153/survivorship-and-the-chronic-cancer-patient-patterns-in-treatment-related-effects-follow-up-care-and-use-of-survivorship-care-plans
#20
Melissa A Frick, Carolyn C Vachani, Christina Bach, Margaret K Hampshire, Karen Arnold-Korzeniowski, James M Metz, Christine E Hill-Kayser
BACKGROUND: The survivorship needs of patients living with chronic cancer (CC) and their use of survivorship care plans (SCPs) have been overlooked and underappreciated. METHODS: A convenience sample of 39,088 SCPs completed for cancer survivors with an Internet-based SCP tool was examined; it included 5847 CC survivors (15%; CC was defined as chronic leukemia and/or recurrent/metastatic cancer of another nature). Patient-reported treatment effects and follow-up care patterns were compared between CC survivors and survivors treated with curative intent (CI)...
June 27, 2017: Cancer
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