keyword
MENU ▼
Read by QxMD icon Read
search

Power duration relationship

keyword
https://www.readbyqxmd.com/read/28725446/sound-a-non-invasive-measure-of-cough-intensity
#1
Kai K Lee, Sergio Matos, Katie Ward, Gerrard F Rafferty, John Moxham, David H Evans, Surinder S Birring
INTRODUCTION: Cough intensity is an important determinant of cough severity reported by patients. Cough sound analysis has been widely validated for the measurement of cough frequency but few studies have validated its use in the assessment of cough strength. We investigated the relationship between cough sound and physiological measures of cough strength. METHODS: 32 patients with chronic cough and controls underwent contemporaneous measurements of voluntary cough sound, flow and oesophageal pressure...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/28688668/infectious-outcomes-of-gastroschisis-patients-with-intraoperative-hypothermia
#2
Rachel M Landisch, Roxanne L Massoumi, Melissa Christensen, Amy J Wagner
BACKGROUND: Perioperative hypothermia decreases nutrient and oxygen delivery to tissues and, in adult studies, increases the risk of infectious complications (ICs). Gastroschisis (GS) places newborns at risk for hypothermia by nature of exposed viscera and excessive heat loss. Although hypothermia is a known cause of mortality in GS, the rate of ICs in this at-risk cohort has not yet been delineated. MATERIALS AND METHODS: A retrospective cohort study was performed at our single tertiary-referral hospital, evaluating patient and operative characteristics of all GS infants who underwent operative closure...
July 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28687955/effects-of-recovery-interval-duration-on-the-parameters-of-the-critical-power-model-for-incremental-exercise
#3
Giovanni Vinetti, Nazzareno Fagoni, Anna Taboni, Stefano Camelio, Pietro Enrico di Prampero, Guido Ferretti
INTRODUCTION: We tested the linear critical power ([Formula: see text]) model for discrete incremental ramp exercise implying recovery intervals at the end of each step. METHODS: Seven subjects performed incremental (power increment 25 W) stepwise ramps to subject's exhaustion, with recovery intervals at the end of each step. Ramps' slopes (S) were 0.83, 0.42, 0.28, 0.21, and 0.08 W s(-1); recovery durations (t r) were 0 (continuous stepwise ramps), 60, and 180 s (discontinuous stepwise ramps)...
July 7, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28621577/fatigue-free-operation-of-most-body-powered-prostheses-not-feasible-for-majority-of-users-with-trans-radial-deficiency
#4
Mona Hichert, Alistair N Vardy, Dick Plettenburg
BACKGROUND: Body-powered prostheses require cable operation forces between 33 and 131 N. The accepted upper limit for fatigue-free long-duration operation is 20% of a users' maximum cable operation force. However, no information is available on users' maximum force. OBJECTIVES: To quantify users' maximum cable operation force and to relate this to the fatigue-free force range for the use of body-powered prostheses. STUDY DESIGN: Experimental trial...
June 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28596950/review-quality-of-life-in-children-with-non-cystic-fibrosis-bronchiectasis
#5
REVIEW
Anna Marie Nathan, Jessie Anne de Bruyne, Kah Peng Eg, Surendran Thavagnanam
Non-cystic fibrosis bronchiectasis (NCFB) has gained renewed interest, due to its increasing health-care burden. Annual mortality statistics in England and Wales showed that under 1,000 people die from bronchiectasis each year, and this number is increasing by 3% yearly. Unfortunately, there is a severe lack of well-powered, randomized controlled trials to guide clinicians how to manage NCFB effectively. Quality-of-life (QOL) measures in NCFB are an important aspect of clinical care that has not been studied well...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28596738/intensity-and-duration-based-options-to-regulate-endurance-training
#6
Peter Hofmann, Gerhard Tschakert
The regulation of endurance training is usually based on the prescription of exercise intensity. Exercise duration, another important variable of training load, is rarely prescribed by individual measures and mostly set from experience. As the specific exercise duration for any intensity plays a substantial role regarding the different kind of cellular stressors, degree, and kind of fatigue as well as training effects, concepts integrating the prescription of both intensity and duration within one model are needed...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28595098/the-continuity-and-duration-of-depression-and-its-relationship-to-non-suicidal-self-harm-and-suicidal-ideation-and-behavior-in-adolescents-12-17
#7
Stephen R Zubrick, Jennifer Hafekost, Sarah E Johnson, Michael G Sawyer, George Patton, David Lawrence
BACKGROUND: There is a significant overlap between non-suicidal self-harm and suicidal ideation and behavior in young people with both symptom continuity and symptom duration implicated in this association. METHODS: A population sample of Australian 12-17 year olds. Interviewers collected measures for DSM disorders, symptom duration and continuity, and background information from their parents, while young people self-reported symptoms of depression, non-suicidal self-harm and suicidal ideation and behaviors...
October 1, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28572761/ten-minutes-of-%C3%AE-tacs-and-ambient-illumination-independently-modulate-eeg-%C3%AE-power
#8
Heiko I Stecher, Tania M Pollok, Daniel Strüber, Fabian Sobotka, Christoph S Herrmann
Transcranial alternating current stimulation (tACS) sees increased use in neurosciences as a tool for the exploration of brain oscillations. It has been shown that tACS stimulation in specific frequency bands can result in aftereffects of modulated oscillatory brain activity that persist after the stimulation has ended. The general relationship between persistency of the effect and duration of stimulation is sparsely investigated but previous research has shown that the occurrence of tACS aftereffects depends on the brain state before and during stimulation...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28556312/three-dimensional-power-doppler-vascularization-in-women-with-ovarian-endometriomas-and-relationship-with-associated-painful-symptoms
#9
Francesca Rizzello, Tommaso Capezzuoli, Ippolita D'Amato Scherbatoff, Mauro Cozzolino, Loredana Gandini, Maria Elisabetta Coccia
OBJECTIVES: The objective of the study was to evaluate the correlation between endometrioma-associated pain and lesion vascularization as measured with 3-dimensional power Doppler transvaginal sonography. METHODS: Endometriomas were examined, and 4 indices were obtained: mean grayness, flow index, vascularization index, and vascularization-flow index. Dysmenorrhea, chronic pelvic pain, and dyspareunia were analyzed in terms of severity, presence/absence, and duration...
May 27, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28554877/comparison-of-ecological-momentary-assessment-versus-direct-measurement-of-e-cigarette-use-with-a-bluetooth-enabled-e-cigarette-a-pilot-study
#10
Jennifer L Pearson, Hoda Elmasry, Babita Das, Sabrina L Smiley, Leslie F Rubin, Teresa DeAtley, Emily Harvey, Yitong Zhou, Raymond Niaura, David B Abrams
BACKGROUND: Assessing the frequency and intensity of e-cigarette use presents special challenges beyond those posed by cigarette use. Accurate measurement of e-cigarette consumption, puff duration, and the stability of these measures over time will be informative for estimating the behavioral and health effects of e-cigarette use. OBJECTIVE: The purpose of this pilot study was to compare the accuracy of self-reported e-cigarette puff counts collected via ecological momentary assessment (EMA) to objective puff count data collected by a Bluetooth-enabled e-cigarette device and to examine the feasibility and acceptability of using a second-generation e-cigarette among adult smokers...
May 29, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28523425/characterization-of-electrocorticogram-high-gamma-signal-in-response-to-varying-upper-extremity-movement-velocity
#11
Po T Wang, Colin M McCrimmon, Christine E King, Susan J Shaw, David E Millett, Hui Gong, Luis A Chui, Charles Y Liu, Zoran Nenadic, An H Do
The mechanism by which the human primary motor cortex (M1) encodes upper extremity movement kinematics is not fully understood. For example, human electrocorticogram (ECoG) signals have been shown to modulate with upper extremity movements; however, this relationship has not been explicitly characterized. To address this issue, we recorded high-density ECoG signals from patients undergoing epilepsy surgery evaluation as they performed elementary upper extremity movements while systematically varying movement speed and duration...
May 18, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28497286/the-influence-of-drinking-fluid-on-endurance-cycling-performance-a-meta-analysis
#12
REVIEW
Justin J Holland, Tina L Skinner, Christopher G Irwin, Michael D Leveritt, Eric D B Goulet
BACKGROUND: Fluid replacement during cycling exercise evolves on a spectrum from simply drinking to thirst to planned structured intake, with both being appropriate recommendations. However, with mixed findings suggesting fluid intake may or may not improve endurance cycling performance (ECP) in a diverse range of trained individuals, there is a clear need for summarised evidence regarding the effect of fluid consumption on ECP. OBJECTIVES: (1) Determine the magnitude of the effect of drinking fluid on performance during cycling exercise tasks of various durations, compared with no drinking; (2) examine the relationship between rates of fluid intake and ECP; and (3) establish fluid intake recommendations based on the observations between rates of fluid intake and ECP...
May 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28490255/developing-a-taxonomy-of-coordination-behaviours-in-nuclear-power-plant-control-rooms-during-emergencies
#13
Dunxing Wang, Qin Gao, Zhizhong Li, Fei Song, Liang Ma
This study aims to develop a taxonomy of coordination behaviours during emergencies in nuclear power plants (NPPs). We summarised basic coordination behaviours from literature in aviation, health care and nuclear field and identified coordination behaviours specific to the nuclear domain by interviewing and surveying control crew operators. The established taxonomy includes 7 workflow stages and 24 basic coordination behaviours. To evaluate the reliability and feasibility of the taxonomy, we analysed 12 videos of operators' training sessions by coding coordination behaviours with the taxonomy and the inter-rater reliability was acceptable...
May 19, 2017: Ergonomics
https://www.readbyqxmd.com/read/28484994/associations-of-blood-glucose-dynamics-with-antihyperglycemic-treatment-and-glycemic-variability-in-type-1-and-type-2-diabetes
#14
K-D Kohnert, P Heinke, L Vogt, P Augstein, A Thomas, E Salzsieder
AIMS: The dynamical structure of glucose fluctuation has largely been disregarded in the contemporary management of diabetes. METHODS: In a retrospective study of patients with diabetes, we evaluated the relationship between glucose dynamics, antihyperglycemic therapy, glucose variability, and glucose exposure, while taking into account potential determinants of the complexity index. We used multiscale entropy (MSE) analysis of continuous glucose monitoring data from 131 subjects with type 1 (n = 18), type 2 diabetes (n = 102), and 11 nondiabetic control subjects...
May 8, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28462682/focal-electroencephalographic-changes-index-post-traumatic-confusion-and-outcome
#15
Sudhin A Shah, Maliheh Mohamadpour, Gulce Askin, Risa Nakase-Richardson, Dobrivoje S Stokic, Mark Sherer, Stuart A Yablon, Nicholas D Schiff
While the duration and severity of post-traumatic confusional state (PTCS) after traumatic brain injury have well-established implications for long-term outcomes, little is known about the underlying pathophysiology and their role in functional outcomes. Here, we analyzed the delta-to-alpha frequency band power ratios (DAR) from localized scalp areas derived from standard resting electroencephalographic (EEG) data recorded during eyes closed state in 49 patients diagnosed with PTCS. Higher global, occipital, parietal, and temporal DARs were significantly associated with the severity of PTCS, as assessed by the Confusion Assessment Protocol (CAP) observed on the same day, after controlling for injury severity...
June 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28446158/parameter-inference-for-stochastic-single-cell-dynamics-from-lineage-tree-data
#16
Irena Kuzmanovska, Andreas Milias-Argeitis, Jan Mikelson, Christoph Zechner, Mustafa Khammash
BACKGROUND: With the advance of experimental techniques such as time-lapse fluorescence microscopy, the availability of single-cell trajectory data has vastly increased, and so has the demand for computational methods suitable for parameter inference with this type of data. Most of currently available methods treat single-cell trajectories independently, ignoring the mother-daughter relationships and the information provided by the population structure. However, this information is essential if a process of interest happens at cell division, or if it evolves slowly compared to the duration of the cell cycle...
April 26, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/28428521/-simple-evaluation-of-left-hand-function-after-thoracic-endovascular-aortic-repair-with-obstruction-of-left-subclavian-artery
#17
Ryo Onishi, Nobuhiro Kataoka, Tomomi Nakajima, Masami Kuramochi, Mayumi Shinonaga, Setsuo Kuraoka
We evaluated left hand function with or without obstruction of left subclavian artery for 29 cases of thoracic endovascular aortic repair (TEVAR). 18 cases of distal true aortic aneurysm were undergone surgery with simple direct closure of left subclavian artery (LSCA). The other 11 cases of true arch aneurysm were revascularized by axilla-carotid-axilla bypass grafting with TEVAR. Later 26 cases were evaluated by blood pressure, maximal grasping power, persisting duration of 60% maximal grasping power, circumferential length of upper and forearms, and simple test for evaluating hand function (STEF)...
April 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28402544/angiotensin-1-7-in-human-follicular-fluid-correlates-with-oocyte-maturation
#18
Ines K Cavallo, Cynthia Dela Cruz, Marilene L Oliveira, Helen L Del Puerto, Júlia A Dias, Veronica N Lobach, Maíra Casalechi, Maria G Camargos, Adelina M Reis, Robson A Santos, Fernando M Reis
STUDY QUESTION: Do angiotensin (Ang)-(1-7) levels in human ovarian follicular fluid (FF) correlate with the number and proportion of mature oocytes obtained for IVF? SUMMARY ANSWER: The present study shows for the first time that Ang-(1-7) levels in human FF correlate with the proportion of mature oocytes collected upon ovarian stimulation for IVF. WHAT IS KNOWN ALREADY: Ang-(1-7) is an active peptide of the renin-angiotensin system that stimulates oocyte maturation in isolated rabbit and rat ovaries...
June 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28332113/the-critical-power-concept-applications-to-sports-performance-with-a-focus-on-intermittent-high-intensity-exercise
#19
REVIEW
Andrew M Jones, Anni Vanhatalo
The curvilinear relationship between power output and the time for which it can be sustained is a fundamental and well-known feature of high-intensity exercise performance. This relationship 'levels off' at a 'critical power' (CP) that separates power outputs that can be sustained with stable values of, for example, muscle phosphocreatine, blood lactate, and pulmonary oxygen uptake ([Formula: see text]), from power outputs where these variables change continuously with time until their respective minimum and maximum values are reached and exercise intolerance occurs...
March 2017: Sports Medicine
https://www.readbyqxmd.com/read/28314495/global-service-learning-and-student-athletes-a-model-for-enhanced-academic-inclusion-at-the-university-of-washington
#20
Holly M Barker
BACKGROUND: The University of Washington (UW) continues to create opportunities to engage all students in transformational undergraduate educational opportunities, such as study abroad. OBJECTIVE: This article describes specific efforts to increase inclusion for student-athletes in study abroad, particularly for first-generation students, including low-income students of color. Given the overrepresentation of students of color in sports vis-à-vis the larger student body at predominantly white institutions (PWIs), like UW, service-learning in communities beyond campus boundaries provides opportunities to apply international learning to a local context and to create a continuum of learning...
November 2016: Annals of Global Health
keyword
keyword
104267
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"