Search results for "Hand"
showing 10 items of 1364 documents
Altered supraspinal motor networks in survivors of poliomyelitis: A cortico-muscular coherence study.
2020
Abstract Objective Poliomyelitis results in changes to the anterior horn cell. The full extent of cortical network changes in the motor physiology of polio survivors has not been established. Our aim was to investigate how focal degeneration of the lower motor neurons (LMN) in infancy/childhood affects motor network connectivity in adult survivors of polio. Methods Surface electroencephalography (EEG) and electromyography (EMG) were recorded during an isometric pincer grip task in 25 patients and 11 healthy controls. Spectral signal analysis of cortico-muscular (EEG-EMG) coherence (CMC) was used to identify the cortical regions that are functionally synchronous and connected to the peripher…
Endurance training in patients with chronic obstructive pulmonary disease: a comparison of high versus moderate intensity.
2000
Abstract Gimenez M, Servera E, Vergara P, Bach JR, Polu J-M. Endurance training in patients with chronic obstructive pulmonary disease: a comparison of high versus moderate intensity. Arch Phys Med Rehabil 2000;81:102-9. Purpose: To create a maximum tolerated 45-minute aerobic training program for patients with chronic obstructive pulmonary disease (COPD) and to compare its outcomes with those of commonly prescribed moderate exercise. Design: Prospective, randomized trial. Setting: A work physiology laboratory. Patients and Methods: The maximum exercise intensities that 7 COPD patients could sustain for 45 minutes were determined on a bilevel exercise ergometer. The patients then exercised …
Contact dermatitis: etiologies of the allergic and irritant type
2020
The term contact dermatitis describes an inflammatory process of the skin that occurs in response to contact with exogenous substances and involves pruritic and erythematous patches. Approximately 80% of all contact dermatitis is primary irritant contact dermatitis (ICD), whereas allergic contact dermatitis (ACD) makes up only 20% of contact dermatitis cases, the estimated prevalence of contact dermatitis in the United States being 1.4%. Among patch-tested patients, nickel has been identified as the most common allergen. Cobalt is the second most common metal allergen and is found in various dental alloys, paints, and coloring components of porcelain and glass. The average prevalence of der…
Maximal isometric strength indices are associated with the oxygen cost of walking and running in recreationally active men and women.
2021
This study assessed the associations of maximal isometric strength and movement economy in 126 recreationally active men and women. Oxygen consumption was assessed through a graded treadmill test with 4-minute increments (4-12 km∙h
Key Physical Factors in the Serve Velocity of Male Professional Wheelchair Tennis Players
2021
The aim of this study was to identify the physical factors related to serve speed in male professional wheelchair tennis players (WT). Nine best nationally-ranked Spanish male wheelchair tennis players (38.35 ± 11.28 years, 63.77 ± 7.01 kg.) completed a neuromuscular test battery consisting of: isometric handgrip strength
Independent and interactive effects of thermal stress and mental fatigue on manual dexterity
2020
Many occupations and sports require high levels of manual dexterity under thermal stress and mental fatigue. Yet, multistressor studies remain scarce. We quantified the interactive effects of thermal stress and mental fatigue on manual dexterity. Seven males (21.1 ± 1.3 yr) underwent six separate 60-min trials characterized by a combination of three air temperatures (hot, 37°C; neutral, 21°C; cold, 7°C) and two mental fatigue states (MF, mental fatigue induced by a 35-min cognitive battery; no-MF, no mental fatigue). Participants performed complex (O’Connor test) and simple (hand-tool test) manual tasks pre- and posttrial to determine stressor-induced performance changes. We monitored part…
Can loss of sensory attenuation be accurately demonstrated using two effectors simultaneously?
2015
Sir, Recently, Parees and colleagues (2014) compared patients with functional (psychogenic) movement disorders and healthy subjects who were asked to match a force delivered to their left finger by pressing on it directly, or by operating a joystick to press down on it, with the other hand. They observed that healthy subjects generated more force than required when pressing directly on their finger (compared with using the joystick), whereas patients did not. They interpreted and discussed this result as a loss of sensory attenuation that typically occurs in healthy subjects during self-generated movements and suggested by return, that it illustrates an altered sense of agency for the patie…
Depressive symptoms, handgrip strength, and weight status in US older adults
2018
Background: Handgrip strength is a valid indicator of broader physical functioning. Handgrip strength and weight status have been independently associated with depressive symptoms in older adults, but no study has yet investigated the relationships between all three in older US adults. This study investigated the relationship between physical function and depressive symptoms by weight status in older US adults. Methods: Cross-sectional data were analysed from the National Health and Nutrition Examination Survey waves 2011 to 2012 and 2013 to 2014. Physical function was assessed using a grip strength dynamometer. Depressive symptoms were assessed using the self-reported Patient Health Questi…
Duodenal Atresia Repair Using a Miniature Stapler Compared to Laparoscopic Hand-Sewn and Open Technique
2019
Abstract Background: Laparoscopic duodenal atresia (DA) repair is a demanding procedure that requires performing a watertight anastomosis in a small working space. Drawbacks of the approach have be...