Motor Skills

301.

Timing goals in bimanual coordination.

Phase coupling between movement trajectories has been proposed as the basic mechanism of hand coordination in the production of bimanual rhythmic movements with a 1:2 frequency ratio. Here a central temporal coupling view is proposed as an alternative. ...
A Semjen, J J Summers (Q J Exp Psychol A, 200201)
timing-goals-bimanual-coordination.asp

302.

Optimization-based models of muscle coordination.

Optimization-based models may provide reasonably accurate estimates of activation and force patterns of individual muscles in selected well-learned tasks with submaximal efforts. Such optimization criteria as minimum energy expenditure, minimum muscle ...
Boris I Prilutsky, Vladimir M Zatsiorsky (Exerc Sport Sci Rev, 200201)
optimization-based-models-muscle-coordination.asp

303.

Influence of rotational speed, torque and operator proficiency on failure of Greater Taper files.

AIM: The purpose of this study was to evaluate the influence of rotational speed. torque, and operator experience on the incidence of locking, deformation, and separation of instruments when using a specific Ni-Ti rotary instrumentation technique in ...
G M Yared, F E Bou Dagher, P Machtou, G K Kulkarni (Int Endod J, 200201)
influence-rotational-speed-torque-operator-proficiency-failure.asp

304.

Three-month-old infants can select specific leg motor solutions.

In this study we used a biofeedback system to evaluate the joint movements of 3-month-old infants in real-time. The computer was set to discriminate a specific leg position as the motor task infants had to discover to receive the reinforcement from a ...
Rosa M Angulo-Kinzler, Beverly Ulrich, Esther Thelen (Motor Control, 200201)
three-month-old-infants-select-specific-leg-motor-solutions.asp

305.

Effects of prenatal PCB and dioxin background exposure on cognitive and motor abilities in Dutch children at school age.

OBJECTIVE: Our purpose was to evaluate whether effects of exposure to environmental levels of PCBs and dioxins on development in the Dutch cohort persist until school age. STUDY DESIGN: In the Dutch PCB/dioxin study, cognitive and motor abilities were ...
Hestien J I Vreugdenhil, Caren I Lanting, Paul G H Mulder, E Rudy Boersma, Nynke Weisglas-Kuperus (J Pediatr, 200201)
effects-prenatal-pcb-dioxin-background-exposure-cognitive-motor.asp

306.

Selective dorsal rhizotomy: meta-analysis of three randomized controlled trials.

This study is a comparative analysis and meta-analysis of three randomized clinical trials. Children with spastic diplegia received either selective dorsal rhizotomy (SDR) plus physiotherapy (SDR+PT) or PT without SDR (PT-only). Common outcome measures ...
John McLaughlin, Kristie Bjornson, Nancy Temkin, Paul Steinbok, Virginia Wright, Ann Reiner, Theodore Roberts, James Drake, Maureen ODonnell, Peter Rosenbaum, Jason Barber, Anne Ferrel (Dev Med Child Neurol, 200201)
selective-dorsal-rhizotomy-meta-analysis-three-randomized-controlled.asp

307.

Motor control strategies revealed in the structure of motor variability.

We describe an uncontrolled manifold hypothesis, which suggests a particular solution for the notorious problem of motor redundancy. A body of recent experiments supports the uncontrolled manifold hypothesis and shows its ability to discover biological ...
Mark L Latash, John P Scholz, Gregor Schöner (Exerc Sport Sci Rev, 200201)
motor-control-strategies-revealed-structure-motor-variability.asp

308.

The Wheelchair Skills Test: a pilot study of a new outcome measure.

OBJECTIVE: To evaluate the practicality, safety, reliability, validity, and usefulness of a new Wheelchair Skills Test (WST). DESIGN: A pilot study with within-subject comparisons. SETTING: Rehabilitation center. PATIENTS: Twenty-four wheelchair users ...
R Lee Kirby, Janneke Swuste, Debbie J Dupuis, Donald A MacLeod, Randi Monroe (Arch Phys Med Rehabil, 200201)
wheelchair-skills-test-pilot-study-new-outcome-measure.asp

309.

Iterative versus filtered backprojection reconstruction for statistical parametric mapping of PET activation measurements: a comparative case study.

The significance of task-induced cerebral blood flow responses, assessed using statistical parametric mapping, depends, among other things, on the signal-to-noise ratio (SNR) of these responses. Generally, positron emission tomography sinograms of ...
A A T S Reinders, A M J Paans, B M de Jong, J A den Boer, A T M Willemsen (Neuroimage, 200201)
iterative-versus-filtered-backprojection-reconstruction-statistical.asp

310.

A single dose of the serotonin neurotransmission agonist paroxetine enhances motor output: double-blind, placebo-controlled, fMRI study in healthy subjects.

Since serotonin (5-HT) stimulates motor function, pharmacological potentiation of 5-HT neurotransmission may improve motor function in healthy subjects and, possibly, recovery in post-stroke patients. Indeed, fluoxetine, a selective serotonin reuptake ...
Isabelle Loubinoux, Jérémie Pariente, Kader Boulanouar, Christophe Carel, Claude Manelfe, Olivier Rascol, Pierre Celsis, François Chollet (Neuroimage, 200201)
single-dose-serotonin-neurotransmission-agonist-paroxetine-enhances.asp