14,765 research outputs found
Supraspinal Fatigue Impedes Recovery From a Low-Intensity Sustained Contraction in Old Adults
This study determined the contribution of supraspinal fatigue and contractile properties to the age difference in neuromuscular fatigue during and recovery from a low-intensity sustained contraction. Cortical stimulation was used to evoke measures of voluntary activation and muscle relaxation during and after a contraction sustained at 20% of maximal voluntary contraction (MVC) until task failure with elbow flexor muscles in 14 young adults (20.9 ± 3.6 yr, 7 men) and 14 old adults (71.6 ± 5.4 yr, 7 men). Old adults exhibited a longer time to task failure than the young adults (23.8 ± 9.0 vs. 11.5 ± 3.9 min, respectively, P \u3c 0.001). The time to failure was associated with initial peak rates of relaxation of muscle fibers and pressor response (P \u3c 0.05). Increments in torque (superimposed twitch; SIT) generated by transcranial magnetic stimulation (TMS) during brief MVCs, increased during the fatiguing contraction (P \u3c 0.001) and then decreased during recovery (P = 0.02). The increase in the SIT was greater for the old adults than the young adults during the fatiguing contraction and recovery (P \u3c 0.05). Recovery of MVC torque was less for old than young adults at 10 min post-fatiguing contraction (75.1 ± 8.7 vs. 83.6 ± 7.8% of control MVC, respectively, P = 0.01) and was associated with the recovery of the SIT (r = −0.59, r2 = 0.35, P \u3c 0.001). Motor evoked potential (MEP) amplitude and the silent period elicited during the fatiguing contraction increased less for old adults than young adults (P \u3c 0.05). The greater fatigue resistance with age during a low-intensity sustained contraction was attributable to mechanisms located within the muscle. Recovery of maximal strength after the low-intensity fatiguing contraction however, was impeded more for old adults than young because of greater supraspinal fatigue. Recovery of strength could be an important variable to consider in exercise prescription of old populations
Long-term results after liver transplantation for primary hepatic epithelioid hemangioendothelioma
Background: Hepatic epithelioid hemangioendothelioma (PHEHE) is a multifocal, low-grade malignant neoplasia characterized by its epithelial-like appearance and vascular endothelial histogenesis. The outcome of 16 patients treated with orthotopic liver transplantation (OLT) is the subject of this report. Methods: A retrospective study of 16 patients with HEHE (7 men, 9 women) with ages ranging from 24 to 58 years (mean 37 ± 10.6 years). Follow-up intervals ranged from 1 to 15 years (median of 4.5 years). Results: Actual patient survival at 1, 3, and 5 years was 100, 87.5, and 71.3%, respectively. Disease-free survival at 1, 3, and 5 years was 81.3, 68.8, and 60.2%, respectively. The 90-day operative mortality was 0. Involvement of the hilar lymph nodes or vascular invasion did not affect survival. The 5-year survival of HEHE compares favorably with that of hepatocellular carcinoma at the same stage (stage 4A): 71.3 versus 9.8% (p=0.001) Conclusions: The long-term survival obtained in this series justifies OLT for these tumors even in the presence of limited extrahepatic disease. © 1995 The Society of Surgical Oncology, Inc
Exploration of the Upper Columbia
"..I have been furnished a copy of Thompson's journal, detailing his [Voyage to the Mouth of the Columbia; by D. Thompson's journal and 7 men on the part of the New Company.]
Intraoperative bronchial stump air leak control by Progel® application after pulmonary lobectomy
Diffuse tracheobronchial calcification is a physiological condition associated with advanced age, especially in women. A calcified bronchus can be fractured during major lung resections (lobectomy, bilobectomy, and pneumonectomy), exposing patients to intraoperative air leakage and broncho-pleural fistula (BPF) occurrence. We retrospectively evaluated the use of Progel® application on the suture line of bronchial stump after pulmonary lobectomy analysing the intraoperative air leak and BPF occurrence. Between January 2014 and December 2014, Progel® was applied in 11 patients who presented intraoperative bronchial fractures after suture resection by mechanical staplers and air leak from bronchial stump, in order to treat air leakage. Patients were 7 men and 4 women, aged between 56 and 81 years (mean age 71.2 ± 12.1 years). Surgical procedures included 6 upper lobectomies (4 right, 2 left), 1 bilobectomy and 4 lower lobectomies (3 right, 1 left). Mean hospital stay was 4.5 ± 2.6 days (2-8 days). None of the patients had postoperative air leakage. No Progel® application-related complications occurred. No other major complications occurred. No mortality occurred. Progel® proved to be useful in treating intraoperative air leakage during major lung resections, particularly those occurring as a result of fracture of the bronchus from a mechanical stapler
Be Thou Exalted, Volume 7: Men Who Walk in Folly\u27s Way: Vocal
Page 27 in Be Thou Exalted, Volume 7: Vocal
Be Thou Exalted, Volume 7: Men Who Walk in Folly\u27s Way: Instrumental
Band arrangement including parts for baritone, horn, trumpet, flute, piccolo, clarinet, oboe, bassoon, saxophone, French horn, trombone, baritone tuba and timpani. (Organ section is missing.
Increased Lower Limb Spasticity but Not Strength or Function Following a Single-Dose Serotonin Reuptake Inhibitor in Chronic Stroke
Objective: To investigate the effects of single doses of a selective serotonin reuptake inhibitor (SSRI) on lower limb voluntary and reflex function in individuals with chronic stroke.
Design: Double-blind, randomized, placebo-controlled crossover trial.
Setting: Outpatient research setting.
Participants: Individuals (N=10; 7 men; mean age ± SD, 57±10y) with poststroke hemiplegia of \u3e1 year duration who completed all assessments.
Interventions: Patients were assessed before and 5 hours after single-dose, overencapsulated 10-mg doses of escitalopram (SSRI) or placebo, with 1 week between conditions.
Main Outcome Measures: Primary assessments included maximal ankle and knee isometric strength, and velocity-dependent (30°/s–120°/s) plantarflexor stretch reflexes under passive conditions, and separately during and after 3 superimposed maximal volitional drive to simulate conditions of increased serotonin release. Secondary measures included clinical measures of lower limb coordination and locomotion.
Results: SSRI administration significantly increased stretch reflex torques at higher stretch velocities (eg, 90°/s; P=.03), with reflexes at lower velocities enhanced by superimposed voluntary drive (P=.02). No significant improvements were seen in volitional peak torques or in clinical measures of lower limb function (lowest P=.10).
Conclusions: Increases in spasticity but not strength or lower limb function were observed with single-dose SSRI administration in individuals with chronic stroke. Further studies should evaluate whether repeated dosing of SSRIs, or as combined with specific interventions, is required to elicit significant benefit of these agents on lower limb function poststroke
Using pedometers as motivational tools : are goals set in steps more effective than goals set in minutes for increasing walking?
Background Pedometers are popular devices that measure walking steps. There has been a recent surge in promoting the pedometer as a motivational tool to increase walking. However, little empirical evidence exists to support this suggestion. This study examined the effectiveness of a pedometer as a motivational tool to increase walking. 50 participants (7 men and 43 women, mean age (SD) 40.16 (8.81) years, range 25-61 years) were randomly assigned to either an intervention group who followed a four-week walking programme with goals set in steps (using an open pedometer for feedback) or a comparison group who followed an equivalent four-week walking programme with goals set in minutes. Participants had step-counts recorded at baseline, weeks 1, 2, 3, 4, and at weeks 16 and 52 for follow-up. Both groups significantly increased step-counts from baseline to week 4 with no significant difference between groups. However, a significantly greater number of participants in the intervention group (77%) compared with the comparison group (54%) achieved their week 4 goals (p=0.03). There was no significant change in step-counts from week 4 to week 16. There was a significant decrease from week 16 to week 52. In the short term, both goals set in minutes and goals set in steps using a pedometer may be effective at promoting walking. In the long term, additional support may be required to sustain increases in walking
Erectile dysfunction is frequent in systemic sclerosis and associated with severe disease: a study of the EULAR Scleroderma Trial and Research group
Introduction: Erectile dysfunction (ED) is common in men with systemic sclerosis (SSc) but the demographics, risk factors and treatment coverage for ED are not well known.
Method: This study was carried out prospectively in the multinational EULAR Scleroderma Trial and Research database by amending the electronic data-entry system with the International Index of Erectile Function-5 and items related to ED risk factors and treatment. Centres participating in this EULAR Scleroderma Trial and Research substudy were asked to recruit patients consecutively.
Results: Of the 130 men studied, only 23 (17.7%) had a normal International Index of Erectile Function-5 score. Thirty-eight per cent of all participants had severe ED (International Index of Erectile Function-5 score ≤ 7). Men with ED were significantly older than subjects without ED (54.8 years vs. 43.3 years, P < 0.001) and more frequently had simultaneous non-SSc-related risk factors such as alcohol consumption. In 82% of SSc patients, the onset of ED was after the manifestation of the first non-Raynaud's symptom (median delay 4.1 years). ED was associated with severe cutaneous, muscular or renal involvement of SSc, elevated pulmonary pressures and restrictive lung disease. ED was treated in only 27.8% of men. The most common treatment was sildenafil, whose efficacy is not established in ED of SSc patients.
Conclusions: Severe ED is a common and early problem in men with SSc. Physicians should address modifiable risk factors actively. More research into the pathophysiology, longitudinal development, treatment and psychosocial impact of ED is needed
Men and health promotion in the United Kingdom: 20 years further forward?
Despite overall improvements in life expectancy, rates of premature male mortality, particularly for men in areas of deprivation, remain an important issue of concern in the United Kingdom (UK). Interventions to engage men and promote their health and wellbeing have developed, albeit sporadically, over recent decades in response to this health inequity. This paper provides a ten year update on the state of men’s health promotion in the UK. It begins by highlighting changes in male life expectancy, and possible explanations for these shifts, including a relative failure to address mental health promotion and male suicide, before providing detail about how practice approaches to men’s health promotion have evolved over the period 2005-2016. Such changes are not removed from the wider socio-economic context. The paper therefore then considers movements in the policy context and possible influences of this before exploring the challenges that remain in men’s health promotion in the UK. We suggest that, despite certain improvements in the practice of men’s health promotion and in men’s health outcomes, issues remain in terms of premature mortality particularly for certain groups of men. We further suggest that many of the difficulties in improving and promoting the health of men further lie with a market-driven neoliberal policy context that engenders inequality through the inequitable distribution of and access to material resources and through individualistic approaches to health promotion that serve men from economically and socially disadvantaged locations least well
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