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https://www.readbyqxmd.com/read/28105552/differentiating-non-suicidal-self-injury-and-risky-drinking-a-role-for-outcome-expectancies-and-self-efficacy-beliefs
#1
Penelope Hasking
Social cognitive theory articulates a role for two key thought processes in governing volitional behaviour: outcome expectancies and self-efficacy expectancies. These cognitions are behaviour-specific, and should thus differentiate people who engage in one behaviour over another. This paper presents the results of a study applying social cognitive theory to explore how outcome expectancies and self-efficacy expectancies differentially relate to non-suicidal self-injury (NSSI) and risky alcohol use amongst a sample of young adults...
January 20, 2017: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28093857/can-blood-flow-restriction-augment-muscle-activation-during-high-load-training
#2
Scott J Dankel, Samuel L Buckner, Matthew B Jessee, Kevin T Mattocks, J Grant Mouser, Brittany R Counts, Gilberto C Laurentino, Jeremy P Loenneke
INTRODUCTION: Blood flow restriction has been shown to augment muscle activation and increase muscle size when combined with low-load training; however, much less is known on whether blood flow restriction can augment muscle activation during high-load exercise. PURPOSE: To determine whether applying blood flow restriction can augment muscle activation with traditional high-load resistance exercise. METHOD: Ten individuals completed two sets of elbow flexion exercise to volitional fatigue...
January 16, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28092566/wake-up-exoskeleton-to-assist-children-with-cerebral-palsy-design-and-preliminary-evaluation-in-level-walking
#3
Fabrizio Patane, Stefano Rossi, Fausto Del Sette, Juri Taborri, Paolo Cappa
This paper presents the modular design and control of a novel compliant lower limb multi-joint exoskeleton for the rehabilitation of ankle knee mobility and locomotion of pediatric patients with neurological diseases, such as Cerebral Palsy (CP). The device consists of an untethered powered knee-ankle-foot orthosis (KAFO), addressed as WAKE-up (Wearable Ankle Knee Exoskeleton), characterized by a position control and capable of operating synchronously and synergistically with the human musculoskeletal system...
January 11, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28091761/on-the-origins-of-endogenous-thoughts
#4
Alexandros Tillas
Endogenous thoughts are thoughts that we activate in a top-down manner or in the absence of the appropriate stimuli. We use endogenous thoughts to plan or recall past events. In this sense, endogenous thinking is one of the hallmarks of our cognitive lives. In this paper, I investigate how it is that we come to possess endogenous control over our thoughts. Starting from the close relation between language and thinking, I look into speech production-a process motorically controlled by the inferior frontal gyrus (IFG)...
January 13, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28087100/-improving-prevention-integrative-model-and-recommendations-intended-for-public-health-professionals
#5
REVIEW
G Broc, A Edjolo
Public health policies aim to diminish people's exposure to negative factors, behaviors or determinants of health. Despite awareness-raising campaigns, health recommendations are still not sufficiently followed. First, the article wondered the reasons behind this observation. In order to do this, we present a theoretical model incorporating: (a) the motivational theories of communication processing; (b) the theories of motivation and volition; (c) self-regulation and self-determination theories. In a second part, the paper describes five principles for improving communication...
January 10, 2017: Revue D'épidémiologie et de Santé Publique
https://www.readbyqxmd.com/read/28079704/modeling-perceived-exertion-during-graded-arm-cycling-exercise-in-spinal-cord-injury
#6
Jason S Au, Julia O Totosy de Zepetnek, Maureen J MacDonald
PURPOSE: Ratings of perceived exertion (RPE) may be useful for exercise testing and prescription in individuals with spinal cord injury (SCI), though the roles of differentiated central and peripheral fatigue during exercise are not clear. We aimed to model differentiated RPE responses during graded arm cycling in individuals with SCI and describe their relationship to cardiorespiratory outcomes. METHODS: Thirty-six individuals with SCI (13 paraplegia; 23 tetraplegia) completed a maximal graded-arm cycling exercise test to volitional exhaustion (5W/min paraplegia; 10W/min tetraplegia)...
January 10, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28077661/characterizing-differential-post-stroke-corticomotor-drive-to-the-dorsi-and-plantarflexor-muscles-during-resting-and-volitional-muscle-activation
#7
Jacqueline Ann Palmer, Ryan Zarzycki, Susanne M Morton, Trisha M Kesar, Stuart A Binder-Macleod
Imbalance of corticomotor excitability between the paretic and nonparetic limbs has been associated with the extent of upper extremity motor recovery post-stroke, is greatly influenced by specific testing conditions such as the presence or absence of volitional muscle activation, and may vary across muscle groups. However, despite its clinical importance, post-stroke corticomotor drive to lower extremity muscles has not been thoroughly investigated. Additionally, while conventional gait rehabilitation strategies for stroke survivors focus on paretic limb foot drop and dorsiflexion impairments, most contemporary literature has indicated that paretic limb propulsion and plantarflexion impairments are the most significant limiters to post-stroke walking function...
January 11, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28074215/-management-of-dysphagia-in-acute-stroke-a%C3%A2-prospective-study-for-validation-of-current-recommendations
#8
B Lindner-Pfleghar, H Neugebauer, S Stösser, J Kassubek, A Ludolph, R Dziewas, M Prosiegel, A Riecker
BACKGROUND: The German expert recommendations on the management of dysphagia in patients after acute stroke suggest an algorithm for clinical and technical investigations to identify patients at risk for aspiration and thus reduce the rate of aspiration pneumonia. The effectiveness of this algorithm has, however, not yet been prospectively validated . METHODS: In this study 144 consecutive stroke patients were assessed by a full bedside swallowing assessment including the screening procedures of standardized swallowing assessment (SSA) and 2 out of 6...
January 10, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28068379/the-firepower-of-work-craving-when-self-control-is-burning-under-the-rubble-of-self-regulation
#9
Kamila Wojdylo, Nicola Baumann, Julius Kuhl
Work craving theory addresses how work-addicted individuals direct great emotion-regulatory efforts to weave their addictive web of working. They crave work for two main emotional incentives: to overcompensate low self-worth and to escape (i.e., reduce) negative affect, which is strategically achieved through neurotic perfectionism and compulsive working. Work-addicted individuals' strong persistence and self-discipline with respect to work-related activities suggest strong skills in volitional action control...
2017: PloS One
https://www.readbyqxmd.com/read/28068114/he-never-willed-to-have-the-will-he-has-historicist-narratives-civilized-blame-and-the-need-to-distinguish-two-notions-of-free-will
#10
Michael J Gill, Stephanie C Cerce
Harsh blame can be socially destructive. This article examines how harsh blame can be "civilized." A core construct here is the historicist narrative, which is a story-like account of how a person came to be the sort of person she is. We argue that historicist narratives regarding immoral actors can temper blame and that this happens via a novel mechanism. To illuminate that mechanism, we offer a novel theoretical perspective on lay beliefs about free will. We distinguish 2 senses of free will: (a) Freedom of action, which portrays the will as a dynamic choice-making mechanism and concerns whether the actor can exert volitional control via that mechanism at the time of action, and (b) Control of self-formation, which portrays the will as an enduring disposition (e...
January 9, 2017: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/28066619/clinical-management-of-chronic-obstructive-pulmonary-disease-patients-with-muscle-dysfunction
#11
REVIEW
Joaquim Gea, Carme Casadevall, Sergi Pascual, Mauricio Orozco-Levi, Esther Barreiro
Muscle dysfunction is frequently observed in chronic obstructive pulmonary disease (COPD) patients, contributing to their exercise limitation and a worsening prognosis. The main factor leading to limb muscle dysfunction is deconditioning, whereas respiratory muscle dysfunction is mostly the result of pulmonary hyperinflation. However, both limb and respiratory muscles are also influenced by other negative factors, including smoking, systemic inflammation, nutritional abnormalities, exacerbations and some drugs...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28063158/muscle-cramp-susceptibility-increases-following-a-volitionally-induced-muscle-cramp
#12
Kevin C Miller, Blaine C Long, Jeffrey E Edwards
INTRODUCTION: Muscle cramping may increase peripheral nervous system excitability. It is unknown if, and how long, cramp susceptibility is affected by previous cramping. We tested whether volitionally-induced muscle cramps (VIMC) lowered cramp threshold frequency (TFc ) and how long TFc was affected post-VIMC. METHODS: Fifteen cramp-prone participants volitionally-induced a flexor hallucis brevis (FHB) cramp on 4 separate days. FHB TFc was measured before VIMC (i...
January 7, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28050926/normative-values-for-cardiorespiratory-fitness-testing-among-us-children-aged-6-11-years
#13
Jaime J Gahche, Brian K Kit, Janet E Fulton, Dianna D Carroll, Thomas Rowland
BACKGROUND: Nationally representative normative values for cardiorespiratory fitness (CRF) have not been described for US children since the mid 1980's. OBJECTIVE: To provide sex- and age-specific normative values for CRF of US children aged 6-11 years. METHODS: Data from 624 children aged 6-11 years who participated in the CRF testing as part of the 2012 National Health and Nutrition Examination Survey National Youth Fitness Survey, a cross-sectional survey, were analyzed...
January 4, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28049344/changes-in-physical-activity-among-coronary-and-hypertensive-patients-a-longitudinal-study-using-the-health-action-process-approach
#14
P Steca, L Pancani, F Cesana, F Fattirolli, C Giannattasio, A Greco, M D'Addario, D Monzani, E R Cappelletti, M E Magrin, M Miglioretti, M Sarini, M Scrignaro, L Vecchio, C Franzelli
OBJECTIVES: Physical activity (PA) is a key factor in cardiovascular disease prevention. Through the Health Action Process Approach (HAPA), the present study investigated the process of change in PA in coronary patients (CPs) and hypertensive patients (HPs). DESIGN: Longitudinal survey study with two follow-up assessments at 6 and 12 months on 188 CPs and 169 HPs. MAIN OUTCOME MEASURES: Intensity and frequency of PA. RESULTS: A multi-sample analysis indicated the equivalence of almost all the HAPA social cognitive patterns for both patient populations...
January 4, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28032303/neural-circuitry-of-emotion-regulation-effects-of-appraisal-attention-and-cortisol-administration
#15
Sean T Ma, James L Abelson, Go Okada, Stephan F Taylor, Israel Liberzon
Psychosocial well-being requires effective regulation of emotional responding in context of threat or stress. Neuroimaging studies have focused on instructed, volitional regulation (e.g., reappraisal or distancing), largely ignoring implicit regulation that does not involve purposeful effort to alter emotional experience. These implicit processes may or may not involve the same neural pathways as explicit regulatory strategies. We examined the neurobiology of implicit emotional regulation processes and the impact of the stress hormone cortisol on these processes...
December 28, 2016: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28031585/suicide-prevention-beyond-mental-disorder
#16
Lakshmi Vijayakumar
Suicide is a conscious act of the will with personal and societal ramifications. Its conscious and volitional nature deepens its tragic impact. India has high suicide rates compared to the other countries and also has intriguing distinctiveness due to the reports of higher rates from areas with better health indices and gender opportunities. In this article, I present a broader paradigm, in contrast to the usual 'mental disorder paradigm', which puts forward practical points for a multi-level engagement of healthcare service, community and policy makers...
November 2016: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28031396/operant-conditioning-of-neural-activity-in-freely-behaving-monkeys-with-intracranial-reinforcement
#17
Ryan W Eaton, Tyler Libey, Eberhard E Fetz
Operant conditioning of neural activity has typically been performed under controlled behavioral conditions using food reinforcement. This has limited the duration and behavioral context for neural conditioning. To reward cell activity in unconstrained primates, we sought sites in nucleus accumbens (NAc) whose stimulation reinforced operant responding. In three monkeys NAc stimulation sustained performance of a manual target-tracking task, with response rates that increased monotonically with increasing NAc stimulation...
December 28, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28012424/white-matter-microstructure-and-volitional-motor-activity-in-schizophrenia-a-diffusion-kurtosis-imaging-study
#18
Lise Docx, Louise Emsell, Wim Van Hecke, Timo De Bondt, Paul M Parizel, Bernard Sabbe, Manuel Morrens
Avolition is a core feature of schizophrenia and may arise from altered brain connectivity. Here we used diffusion kurtosis imaging (DKI) to investigate the association between white matter (WM) microstructure and volitional motor activity. Multi-shell diffusion MRI and 24-h actigraphy data were obtained from 20 right-handed patients with schizophrenia and 16 right-handed age and gender matched healthy controls. We examined correlations between fractional anisotropy (FA), mean diffusivity (MD), mean kurtosis (MK), and motor activity level, as well as group differences in these measures...
October 15, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/28009787/prevalence-of-exercise-induced-arterial-hypoxemia-in-distance-runners-at-sea-level
#19
Keren Constantini, David A Tanner, Timothy P Gavin, Craig A Harms, Joel M Stager, Robert F Chapman
PURPOSE: It has been reported that ~50% of endurance-trained men demonstrate exercise induced arterial oxyhemoglobin hypoxemia (EIAH) during heavy exercise. However, this often-cited prevalence rate comes from a single study using a cohort of 25 highly trained men who completed maximal cycle ergometry. As arterial oxyhemoglobin saturation (SpO2) during maximal exercise is reported to be significantly lower during treadmill vs. cycle ergometry in the same subjects, we hypothesized that the prevalence of EIAH would be greater than previously reported (and commonly referenced) in a larger cohort of highly endurance-trained men during maximal treadmill running...
December 22, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28009786/low-force-muscle-activity-regulates-energy-expenditure-after-spinal-cord-injury
#20
Jessica R Woelfel, Amy L Kimball, Chu-Ling Yen, Richard K Shields
: Reduced physical activity is a primary risk factor for increased morbidity and mortality, People with spinal cord injury (SCI) have reduced activity for a lifetime, as they cannot volitionally activate affected skeletal muscles. We explored whether low force and low frequency stimulation is a viable strategy to enhance systemic energy expenditure in people with SCI. PURPOSE: To determine the effects of low stimulation frequency (1 Hz, 3 Hz) and stimulation intensity (50 mA and 100 mA) on energy expenditure in people with SCI...
December 22, 2016: Medicine and Science in Sports and Exercise
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