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Journal of Motor Behavior

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https://www.readbyqxmd.com/read/27870606/the-application-of-cortical-arousal-assessment-to-control-neuromuscular-fatigue-during-strength-training
#1
Vicente Javier Clemente-Suárez
The author's aim was to analyze the cortical arousal response during a conventional strength training session as a method to assess central nervous system fatigue. Sixteen trained men were recruited to perform the maximum number of training series composed of 6 exercises of 10 repetition each, at the intensity of 70% of the 1 maximum repetition, with a rest period of 2 min between exercises and 5 min between series, until exhaustion. Cortical arousal was measured using the critical flicker fusion threshold before, after warm-up, after each exercises series, after the recovery phase between series, and 15 min and 30 min after finishing the training session...
November 21, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27870605/age-related-differences-in-locomotor-strategies-during-adaptive-walking
#2
Kristin A Lowry, Katherine Sebastian, Subashan Perera, Jessie Van Swearingen, Ann L Smiley-Oyen
Simultaneous control of lower limb stepping movements and trunk motion is important for skilled walking; adapting gait to environmental constraints requires frequent alternations in stepping and trunk motion. These alterations provide a window into the locomotor strategies adopted by the walker. The authors examined gait strategies in young and healthy older adults when manipulating step width. Anteroposterior (AP) and mediolateral (ML) smoothness (quantified by harmonic ratios) and stepping consistency (quantified by gait variability) were analyzed during narrow and wide walking while controlling cadence to preferred pace...
November 21, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27870597/exercise-training-for-persons-with-alzheimer-s-disease-and-caregivers-a-review-of-dyadic-exercise-interventions
#3
Guillaume Lamotte, Raj C Shah, Orly Lazarov, Daniel M Corcos
Alzheimer's disease (AD) is the most common form of dementia and the prevalence will increase dramatically in the next decades. Although exercise has shown benefits for people with dementia due to AD as well as their caregivers, the impact of a dyadic exercise intervention including both groups as study participants remains to be determined. The authors review the current clinical evidence for dyadic exercise interventions, which are exercise regimens applied to both the person with dementia and the caregiver...
November 21, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27870595/human-energy-expenditure-and-postural-coordination-on-the-mechanical-horse
#4
Héloïse Baillet, Régis Thouvarecq, Eric Vérin, Claire Tourny, Nicolas Benguigui, John Komar, David Leroy
The authors investigated and compared the energy expenditure and postural coordination of two groups of healthy subjects on a mechanical horse at 4 increasing oscillation frequencies. Energy expenditure was assessed from the oxygen consumption, respiratory quotient, and heart rate values, and postural coordination was characterized by relative phase computations between subjects (elbow, head, trunk) and horse. The results showed that the postural coordination of the riders was better adapted (i.e., maintenance of in-phase and antiphase) than that of the nonriders, but the energy expenditure remains the same...
November 21, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27754798/motor-cortex-plasticity-in-children-with-spastic-cerebral-palsy-a-systematic-review
#5
Natália de Almeida Carvalho Duarte, Luanda André Collange Grecco, Nelci Zanon, Manuela Galli, Felipe Fregni, Claudia Santos Oliveira
A review of the literature was performed to answer the following questions: Does motor cortex excitability correlate with motor function? Do motor cortex excitability and cortex activation change after a rehabilitation program that results in improvements in motor outcomes? Can the 10-20 electroencephalography (EEG) system be used to locate the primary motor cortex when employing transcranial direct current stimulation? Is there a bihemispheric imbalance in individuals with cerebral palsy similar to what is observed in stroke survivors? the authors found there is an adaptation in the geometry of motor areas and the cortical representation of movement is variable following a brain lesion...
October 18, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27749154/portable-myoelectric-brace-use-increases-upper-extremity-recovery-and-participation-but-not-impact-kinematics-in-chronic-poststroke-hemiparesis
#6
Nienke W Willigenburg, Michael P McNally, Timothy E Hewett, Stephen J Page
The authors examined the efficacy of an 8-week regimen combining repetitive task-specific practice (RTP) with a myoelectric brace (RTP+Myomo) on paretic upper extremity (UE; use in valued activities, perceived recovery, and reaching kinematics) in 12 subjects (4 men; M age = 53.5 years; mean time poststroke = 61.7 months). Seven subjects were administered RTP+Myomo therapy, and 5 were administered RTP only. Both groups participated in individualized, 45-min therapy sessions occurring 3 days/week over an 8-week period...
October 17, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27740907/muscular-activation-pattern-of-bilateral-extensors-response-to-asymmetric-hand-lifting-during-trunk-flexion-extension-performance
#7
Ying Wei, Xinhai Shan
The authors' purpose was to test the effect of asymmetric hand lifting on muscular activation patterns of 3 bilateral extensors. Eighteen male university students without back pain were volunteered. Each performed flexion-extension randomly with conditions of right lifting, left lifting, and nonlifting. Surface electromyography from bilateral thoracic, lumbar erector spinae, and hamstring was recorded. The cross-correlation and relative intensity in paired muscles of bilateral extensors was calculated in flexion as well as extension period...
October 14, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27740896/association-between-body-mass-index-and-motor-competence-in-santal-children-of-purulia-district-india
#8
Sutanu Dutta Chowdhury, Brian H Wrotniak, Tusharkanti Ghosh
The purpose of this study was to evaluate the relationship between body mass index and motor competence in Santal children 5-12 years old. A total of 816 Santal children were studied. Children's adiposity status was assessed by body mass index (BMI) for age z-score based on World Health Organization reference data. Motor competence was measured using the Bruininks-Oseretsky Test of Motor Competence (BOT-2). There was no significant difference in mean BMI z-score between Santal boys (0.13 ± 0.07) and girls (-0...
October 14, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27740895/effect-of-instructions-prioritizing-speed-or-accuracy-on-kinematics-and-kicking-performance-in-football-players
#9
Roland van den Tillaar, Pål Fuglstad
The authors' purpose was to investigate if there is a speed accuracy trade-off in soccer kicking by using instructions prioritizing velocity, accuracy, or both upon soccer kicking performance and kicking direction in experienced soccer players. In addition, kinematics were measured to investigate the eventual differences in performance. Thirteen experienced male footballers performed penalty kicks with different instructions prioritizing velocity, accuracy or both. Three-dimensional kinematics, together with maximal ball velocity and hitting accuracy, were measured on all kicks...
October 14, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27732431/remote-limb-ischemic-conditioning-at-two-cuff-inflation-pressures-yields-learning-enhancements-in-healthy-adults
#10
Kendra M Cherry-Allen, Jeff M Gidday, Jin-Moo Lee, Tamara Hershey, Catherine E Lang
The authors tested whether 2 doses of remote limb ischemic conditioning (RLIC), induced via blood pressure cuff inflation, enhanced motor and cognitive learning to an equal extent, and explored a panel of blood biomarkers of RLIC. Thirty-two young adults were randomized to 3 groups and underwent a 7-day protocol of RLIC/sham followed by motor and cognitive training, with follow-up. Both RLIC groups had greater motor learning and a trend toward greater cognitive learning compared with the sham group. RLIC at the lower inflation pressure was as effective as RLIC with the higher inflation pressure...
October 12, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27726693/unilateral-stability-and-visual-feedback-body-control-improves-after-three-month-resistance-training-in-overweight-individuals
#11
Erika Zemková, Ol'ga Kyselovičová, Michal Jeleň, Zuzana Kováčiková, Gábor Ollé, Gabriela Štefániková, Tomáš Vilman, Miroslav Baláž, Timea Kurdiová, Jozef Ukropec, Barbara Ukropcová
The authors evaluated the effect of 3 months of resistance and aerobic training (3 sessions/week) on body balance in a group of 25 overweight and obese individuals. Prior to and after the training, they performed static and task-oriented balance tests under various conditions. Mean center of pressure (CoP) velocity and mean trace length of the CoP in the y-axis registered during a one-legged stance significantly decreased after the resistance training (19.1%, p = .024; 29.3%, p = .009). Mean trace length of the CoP in the y-axis decreased significantly also during a bipedal stance on a foam surface with eyes open and closed (10...
October 11, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27726692/speed-and-rhythm-affect-temporal-structure-of-variability-in-reaching-poststroke-a-pilot-study
#12
Amit Sethi, Nick Stergiou, Tara S Patterson, Carolynn Patten, Lorie G Richards
Temporal structure reveals the potential adaptive strategies employed during upper extremity movements. The authors compared the temporal structure of upper extremity joints under 3 different reaching conditions: preferred speed, fast speed, and reaching with rhythmic auditory cues in 10 individuals poststroke. They also investigated the temporal structure of these 3 reaching conditions in 8 healthy controls to aid in the interpretation of the observed patterns in the poststroke cohort. Approximate entropy (ApEn) was used to measure the temporal structure of the upper extremity joints...
October 11, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27726691/poor-imitative-performance-of-unlearned-gestures-in-children-with-probable-developmental-coordination-disorder
#13
Jess E Reynolds, Sophie Kerrigan, Catherine Elliott, Brendan S Lay, Melissa K Licari
It has been hypothesized that deficits in imitation, linked to abnormal functioning of the mirror neuron system (MNS), may contribute to the motor impairments associated with developmental coordination disorder (DCD). The authors aimed to examine imitation of complex novel postures and sequences of gestures in children with and without probable DCD (pDCD), using the postural praxis and sequencing praxis subtests of the Sensory Integration and Praxis Tests (Ayres, 1989 ). Participants were 29 boys with pDCD between 6...
October 11, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27726645/upper-extremity-proprioception-after-stroke-bridging-the-gap-between-neuroscience-and-rehabilitation
#14
Sonja E Findlater, Sean P Dukelow
Proprioception is an important aspect of function that is often impaired in the upper extremity following stroke. Unfortunately, neurorehabilitation has few evidence based treatment options for those with proprioceptive deficits. The authors consider potential reasons for this disparity. In doing so, typical assessments and proprioceptive intervention studies are discussed. Relevant evidence from the field of neuroscience is examined. Such evidence may be used to guide the development of targeted interventions for upper extremity proprioceptive deficits after stroke...
October 11, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27726513/working-memory-training-improves-dual-task-performance-on-motor-tasks
#15
Takehide Kimura, Fuminari Kaneko, Keita Nagahata, Eriko Shibata, Nobuhiro Aoki
The authors investigated whether working memory training improves motor-motor dual-task performance consisted of upper and lower limb tasks. The upper limb task was a simple reaction task and the lower limb task was an isometric knee extension task. 45 participants (age = 21.8 ± 1.6 years) were classified into a working memory training group (WM-TRG), dual-task training group, or control group. The training duration was 2 weeks (15 min, 4 times/week). Our results indicated that working memory capacity increased significantly only in the WM-TRG...
October 11, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27723429/stepping-responses-in-young-and-older-adults-following-a-perturbation-to-the-support-surface-during-gait
#16
Emily I McIntosh, John L Zettel, Lori Ann Vallis
The objective of this work was to investigate the influence perturbation direction has on postural responses during overground gait, and whether these responses are age related. Differences in stepping patterns following perturbations of the support surface were examined in the frontal and sagittal planes during forward walking. Eleven young and 10 older adults completed Mini BESTest, hip strength tests, and 45 perturbed walking trials, triggered on heel contact. Lateral perturbations were more challenging to postural stability for both groups...
October 10, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27644454/effect-of-transcranial-direct-current-stimulation-combined-with-virtual-reality-training-on-balance-in-children-with-cerebral-palsy-a-randomized-controlled-double-blind-clinical-trial
#17
Roberta Delasta Lazzari, Fabiano Politti, Stefany Ferreira Belina, Luanda André Collange Grecco, Cibele Almeida Santos, Arislander Jonathan Lopes Dumont, Jamile Benite Palma Lopes, Veronica Cimolin, Manuela Galli, Cláudia Santos Oliveira
The authors' aim was to investigate the effects of continuous transcranial direct current stimulation (tDCS) combined with virtual reality training on static and functional balance in children with cerebral palsy (CP). Twenty children with CP (6 girls and 14 boys; M age = 7 years 6 months ± 2 years) were randomly allocated to two groups. The experimental group received active tDCS and the control group received sham stimulation during the 10 sessions of virtual reality mobility training protocols. The children were evaluated on 3 occasions (preintervention, postintervention, and 1-month follow-up)...
September 20, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27635631/subtle-motor-findings-during-recovery-from-pediatric-traumatic-brain-injury-a-preliminary-report
#18
J Stephens, C Salorio, M Denckla, S Mostofsky, S Suskauer
Pediatric traumatic brain injury (TBI) is a heterogeneous condition, varying in both severity and sequelae. The long-term motor deficits following severe TBI requiring inpatient rehabilitation are better established than those following milder forms of TBI. The authors examined motor performance 2 and 12 months postinjury in children without overt motor impairment using standard measures of upper limb function and the Physical and Neurological Examination for Subtle Signs (PANESS). The PANESS was sensitive to differences between children with TBI and uninjured children as well as to changes in children with TBI over time...
September 16, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27805495/in-memoriam-antoinette-m-gentile-1936-2016
#19
Andrew M Gordon, Lori Quinn, Terry R Kaminski, Richard A Magill
No abstract text is available yet for this article.
November 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27805494/eov-ed-board
#20
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Journal of Motor Behavior
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