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https://www.readbyqxmd.com/read/27913961/prediction-of-postoperative-clinical-recovery-of-drop-foot-attributable-to-lumbar-degenerative-diseases-via-a-bayesian-network
#1
Shota Takenaka, Hiroyuki Aono
BACKGROUND: Drop foot resulting from degenerative lumbar diseases can impair activities of daily living. Therefore, predictors of recovery of this symptom have been investigated using univariate or/and multivariate analyses. However, the conclusions have been somewhat controversial. Bayesian network models, which are graphic and intuitive to the clinician, may facilitate understanding of the prognosis of drop foot resulting from degenerative lumbar diseases. QUESTIONS/PURPOSES: (1) To show a layered correlation among predictors of recovery from drop foot resulting from degenerative lumbar diseases; and (2) to develop support tools for clinical decisions to treat drop foot resulting from lumbar degenerative diseases...
December 2, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27906984/balance-and-muscle-strength-in-elderly-women-who-dance-samba
#2
Marcos Maurício Serra, Angelica Castilho Alonso, Mark Peterson, Luis Mochizuki, Júlia Maria D'Andréa Greve, Luiz Eugênio Garcez-Leme
Considering the growth of the aging population, and the increasing risk for falls and related morbidity, it is vital to seek efficient, comprehensive, and culturally relevant prevention programs for elderly people to reduce risks for falls. The aim of the present study was to evaluate the postural balance and muscle strength among women participating in the "Wing of Baianas" in the carnival parades. One hundred and ten women, with an average age of 67.4±5.9 years, were divided into two groups: Baianas group-elderly participants of the carnival parades in the "Wing of Baianas", and a Control group of women who do not dance samba...
2016: PloS One
https://www.readbyqxmd.com/read/27906050/the-sh3-and-cysteine-rich-domain-3-stac3-gene-is-important-to-growth-fiber-composition-and-calcium-release-from-the-sarcoplasmic-reticulum-in-postnatal-skeletal-muscle
#3
Xiaofei Cong, Jonathan Doering, Davi A G Mazala, Eva R Chin, Robert W Grange, Honglin Jiang
BACKGROUND: The SH3 and cysteine-rich domain 3 (Stac3) gene is specifically expressed in the skeletal muscle. Stac3 knockout mice die perinatally. In this study, we determined the potential role of Stac3 in postnatal skeletal muscle growth, fiber composition, and contraction by generating conditional Stac3 knockout mice. METHODS: We disrupted the Stac3 gene in 4-week-old male mice using the Flp-FRT and tamoxifen-inducible Cre-loxP systems. RESULTS: RT-qPCR and western blotting analyses of the limb muscles of target mice indicated that nearly all Stac3 mRNA and more than 70 % of STAC3 protein were deleted 4 weeks after tamoxifen injection...
April 11, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27904800/cervical-contribution-to-functional-shoulder-impingement-two-case-reports
#4
Steven Pheasant
BACKGROUND: Subacromial impingement is a common condition among overhead athletes. The cause of subacromial impingement can be multifactorial and often involves impaired rotator cuff function. CASE DESCRIPTION: The following cases outline the presentation, examination and intervention of two overhead athletes, a high school football quarterback and a collegiate swimmer, each presenting with signs and symptoms of subacromial impingement. The unique feature in each case was the manifestation of the cervical spine as the apparent source of rotator cuff weakness, which contributed to functional subacromial impingement although other overt signs of cervical or associated nerve root involvement were absent...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27900312/posterior-tibial-tendon-displacement-behind-the-tibia-and-its-interposition-in-an-irreducible-isolated-ankle-dislocation-a-case-report-and-literature-review
#5
Alessandro Ortolani, Roberto Bevoni, Alessandro Russo, Maurilio Marcacci, Mauro Girolami
Isolated posteromedial ankle dislocation is a rare condition thanks to the highly congruent anatomical configuration of the ankle mortise, in which the medial and lateral malleoli greatly reduce the rotational movement of the talus, and the strength of the ligaments higher than the malleoli affords protection against fractures. However, other factors, like medial malleolus hypoplasia, laxity of the ligaments, peroneal muscle weakness and previous ankle sprains, could predispose to pure dislocation. In the absence of such factors, only a complex high-energy trauma, with a rotational component, can lead to this event...
July 2016: Joints
https://www.readbyqxmd.com/read/27899894/moderate-load-eccentric-exercise-a-distinct-novel-training-modality
#6
REVIEW
Hans Hoppeler
Over the last 20 years a number of studies have been published using progressive eccentric exercise protocols on motorized ergometers or similar devices that allow for controlled application of eccentric loads. Exercise protocols ramp eccentric loads over an initial 3 weeks period in order to prevent muscle damage and delayed onset muscle soreness. Final training loads reach 400-500 W in rehabilitative settings and over 1200 W in elite athletes. Training is typically carried out three times per week for durations of 20-30 min...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27897431/prevalence-and-incidence-of-sarcopenia-in-the-very-old-findings-from-the-newcastle-85-study
#7
Richard Matthew Dodds, Antoneta Granic, Karen Davies, Thomas B L Kirkwood, Carol Jagger, Avan Aihie Sayer
INTRODUCTION: Recognition that an older person has sarcopenia is important because this condition is linked to a range of adverse outcomes. Sarcopenia becomes increasingly common with age, and yet there are few data concerning its descriptive epidemiology in the very old (aged 85 years and above). Our aims were to describe risk factors for sarcopenia and estimate its prevalence and incidence in a British sample of the very old. METHODS: We used data from two waves (2006/07 and 2009/10) of the Newcastle 85+ Study, a cohort born in 1921 and registered with a Newcastle/North Tyneside general practice...
November 16, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27897395/the-human-skeletal-muscle-proteome-project-a-reappraisal-of-the-current-literature
#8
REVIEW
Marta Gonzalez-Freire, Richard D Semba, Ceereena Ubaida-Mohien, Elisa Fabbri, Paul Scalzo, Kurt Højlund, Craig Dufresne, Alexey Lyashkov, Luigi Ferrucci
Skeletal muscle is a large organ that accounts for up to half the total mass of the human body. A progressive decline in muscle mass and strength occurs with ageing and in some individuals configures the syndrome of 'sarcopenia', a condition that impairs mobility, challenges autonomy, and is a risk factor for mortality. The mechanisms leading to sarcopenia as well as myopathies are still little understood. The Human Skeletal Muscle Proteome Project was initiated with the aim to characterize muscle proteins and how they change with ageing and disease...
August 3, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27896949/sarcopenia-predicts-readmission-and-mortality-in-elderly-patients-in-acute-care-wards-a-prospective-study
#9
Ming Yang, Xiaoyi Hu, Haozhong Wang, Lei Zhang, Qiukui Hao, Birong Dong
OBJECTIVES: The aim of this study is to assess the prevalence of sarcopenia and investigate the associations between sarcopenia and long-term mortality and readmission in a population of elderly inpatients in acute care wards. METHODS: We conducted a prospective observational study in the acute care wards of a teaching hospital in western China. The muscle mass was estimated according to a previously validated anthropometric equation. Handgrip strength was measured with a handheld dynamometer, and physical performance was measured via a 4 m walking test...
November 28, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27894796/cognitive-challenges-aging-and-neuromuscular-fatigue
#10
Ashley E Shortz, Ranjana K Mehta
Cognitive challenges, such as concurrent cognitive demands or prior cognitive fatigue, have shown to adversely impact neuromuscular fatigue, specifically in younger adults. Whether these relationships are similar for the aging population remains unclear. The aim of the study was to investigate the effects of different cognitive challenges on handgrip fatigue with aging. Ten younger (24.10 (1.79) years) and ten older (75.90 (7.80) years) females attended three experimental conditions (control, i.e., exercise only, cognitive fatigue prior to exercise, and concurrent mental arithmetic during exercise) on different days...
November 25, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27893478/loads-and-movement-speeds-dictate-differences-in-power-output-during-circuit-training
#11
Kirk B Roberson, Sean Chowdhari, Morgan White, Joseph F Signorile
Power training has become a common exercise intervention for improving muscle strength, power, and physical function, while reducing injury risk. Few studies, however, have evaluated acute load changes on power output during traditional resistance-training protocols. Therefore, the aim of this study was to quantify the effects of different loading patterns on power output during a single session of circuit resistance training (CRT). Nine males (age=19.4±0.9 y) and eleven females (age=20.6±1.6 y) completed three CRT protocols during separate testing sessions using seven pneumatic exercises...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27884417/nerve-decompression-surgery-after-total-hip-arthroplasty-what-are-the-outcomes
#12
Morad Chughtai, Anton Khlopas, Chukwuwieke U Gwam, Randa K Elmallah, Melbin Thomas, James Nace, Michael A Mont
BACKGROUND: The purpose of our study was to compare (1) muscle strength; (2) pain; (3) sensation; (4) various outcome measurement scales between post-total hip arthroplasty (THA) patients who had a sciatic nerve injury and did or did not receive decompression surgery for this condition; and (5) to compare these findings with current literature. METHODS: Nineteen patients who had nerve injury after THA were reviewed. Patients were stratified into those who had a nerve decompression (n = 12), and those who had not (n = 7)...
November 2, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27883164/sarcopenia-trials-in-specific-diseases-report-by-the-international-conference-on-frailty-and-sarcopenia-research-task-force
#13
B Vellas, R Fielding, S Bhasin, F Cerreta, B Goodpaster, J M Guralnik, S Kritchevsky, V Legrand, C Forkin, J Magaziner, J E Morley, L Rodriguez-Manas, R Roubenoff, S Studenski, D T Villareal, M Cesari
Muscle atrophy occurs as a consequence of a number of conditions, including cancer, chronic obstructive pulmonary disease (COPD), diabetes mellitus, heart failure, and other chronic diseases, where it is generally a predictor of poor survival. It also occurs as a consequence of disuse and an age-related loss of muscle mass and strength (sarcopenia). The aims of the 2016, International Conference on Frailty and Sarcopenia Research (ICFSR) Task Force were to examine how these specific chronic conditions have been employed in treatment trials thus far and how future trials using these patient groups might be designed for efficient identification of effective sarcopenia interventions...
2016: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/27874066/cl316-243-a-%C3%AE-3-adrenergic-receptor-agonist-induces-muscle-hypertrophy-and-increased-strength
#14
Daniela Puzzo, Roberto Raiteri, Clotilde Castaldo, Raffaele Capasso, Ester Pagano, Mariateresa Tedesco, Walter Gulisano, Lisaveta Drozd, Pellegrino Lippiello, Agostino Palmeri, Pietro Scotto, Maria Concetta Miniaci
Studies in vitro have demonstrated that β3-adrenergic receptors (β3-ARs) regulate protein metabolism in skeletal muscle by promoting protein synthesis and inhibiting protein degradation. In this study, we evaluated whether activation of β3-ARs by the selective agonist CL316,243 modifies the functional and structural properties of skeletal muscles of healthy mice. Daily injections of CL316,243 for 15 days resulted in a significant improvement in muscle force production, assessed by grip strength and weight tests, and an increased myofiber cross-sectional area, indicative of muscle hypertrophy...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27855417/testosterone-deficiency-and-testosterone-treatment-in-older-men
#15
Farid Saad, Gabriele Röhrig, Stephan von Haehling, Abdulmaged Traish
Frailty is a clinical condition related to changes in metabolism, to sarcopenia, and to decline in muscle mass and strength, bone mineral density, and physical function with aging. The pathophysiology of frailty is multifactorial and associated with comorbidities. Testosterone is implicated in regulating metabolic functions, maintenance of muscle and bone, and inhibition of adipogenesis. In older individuals, reduced testosterone is thought to contribute to an altered state of metabolism, loss of muscle and bone, and increased fat, leading to sarcopenia, sarcopenic obesity, and frailty...
November 18, 2016: Gerontology
https://www.readbyqxmd.com/read/27848072/hamate-hook-nonunion-initially-mistaken-for-ulnar-nerve-compression-a%C3%A2-case-report-with-review-of-literature
#16
Mario Josipovic, Dorotea Bozic, Ivan Bohacek, Tomislav Smoljanovic, Ivan Bojanic
BACKGROUND: Hamate hook (HH) stress fractures are rare, often presenting with misleading symptoms and easily overlooked/misdiagnosed. These fractures occur frequently in individuals participating in sports activities involving racquets, bats, or clubs. Symptoms are non-specific and often mimic other clinical conditions, such as ulnar nerve entrapment or ulnar vessel thrombosis. CASE REPORT: A 17-year-old tennis player with no history of trauma presented with dominant hand weakness together with pain and paresthesia on the ulnar side, which exacerbated with tennis play...
November 15, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27843429/paraneoplastic-necrotizing-autoimmune-myopathy-in-a-patient-undergoing-laparoscopic-pancreatoduodenectomy-for-distal-cholangiocarcinoma
#17
Stefan van Dijk, Anneke J van der Kooi, Eleonora Aronica, Thomas M van Gulik, Olivier R Busch, Marc G Besselink
A 73-year-old male presented with jaundice and severe muscle weakness. He was diagnosed with distal cholangiocarcinoma and paraneoplastic necrotizing autoimmune myopathy (NAM). Treatment of NAM consisted of dexamethasone pulse therapy, prednisone, and single-dose intravenous immunoglobulin. The distal cholangiocarcinoma was resected through a total laparoscopic pancreatoduodenectomy. After hospital discharge, muscle strength initially increased postoperatively; however, pneumonia resulted in the deterioration of his general condition and death 5 months after the diagnosis of paraneoplastic NAM...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27842603/simulated-partners-and-collaborative-exercise-space-to-boost-motivation-for-astronauts-study-protocol
#18
Deborah L Feltz, Lori Ploutz-Snyder, Brian Winn, Norbert L Kerr, James M Pivarnik, Alison Ede, Christopher Hill, Stephen Samendinger, William Jeffery
BACKGROUND: Astronauts may have difficulty adhering to exercise regimens at vigorous intensity levels during long space missions. Vigorous exercise is important for aerobic and musculoskeletal health during space missions and afterwards. A key impediment to maintaining vigorous exercise is motivation. Finding ways to motivate astronauts to exercise at levels necessary to mitigate reductions in musculoskeletal health and aerobic capacity have not been explored. The focus of Simulated Partners and Collaborative Exercise (SPACE) is to use recently documented motivation gains in task groups to heighten the exercise experience for participants, similar in age and fitness to astronauts, for vigorous exercise over a 6-month exercise regimen...
November 14, 2016: BMC Psychology
https://www.readbyqxmd.com/read/27834612/the-effectiveness-of-neuromuscular-electrical-stimulation-in-improving-voluntary-activation-of-the-quadriceps-a-critically-appraised-topic
#19
Cody B Bremner, William R Holcomb, Christopher D Brown, Melanie E Perreault
: Clinical Scenario: Orthopedic knee conditions are regularly treated in sports medicine clinics. Rehabilitation protocols for these conditions are often designed to address the associated quadriceps strength deficits. Despite these efforts, patients with orthopedic knee conditions often fail to completely regain their quadriceps strength. Disinhibitory modalities have recently been suggested as a clinical tool that can be used to counteract the negative effects of arthrogenic muscle inhibition (AMI), which is believed to limit the effectiveness of therapeutic exercise...
November 11, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27832595/psychosocial-stress-alters-the-strength-of-reticulospinal-input-to-the-human-upper-trapezius
#20
Ryan J Marker, Serge Campeau, Katrina Shaun Maluf
Psychosocial stress has been shown to influence several aspects of human motor control associated with the fight-or-flight response, including augmentation of upper trapezius muscle activity. Given the established role of the reticular formation in arousal, this study investigated the contribution of reticulospinal activation to trapezius muscle activity during exposure to an acute psychosocial stressor. Twenty-five healthy adults were exposed to startling acoustic stimuli (SAS) while performing a motor task during periods of low and high psychosocial stress...
November 2, 2016: Journal of Neurophysiology
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