Abstract Importance: Handgrip dynamometry is probably the most commonly used method to characterize overall human muscle strength. Objective: To compare and summarize grip strength measurements obtained from two population-based studies. Design: Secondary data analysis. Setting Participants: Data (1) 2011–2014 National Health Nutrition Examination Survey (NHANES) with 13,918 participants (2) 2011 normative phase of Institutes (NIH) Toolbox project 3,594 participants. Outcomes Measures: The...

The responses of striate cortical neurons are often modeled using non-uniform Poisson processes. This model has proved to be a good simple, artificial stimuli, but yet tested on naturalistic stimuli. We recorded the isolated in cortex anesthetized cats while presenting repeated movie sequences with frame durations 35 ms (29 Hz). found episodes spike-count variability that were sub-Poisson (i.e. Fano Factor less than 1) 61% (22/36) responsive our database, and 21% (134/638) windows mean spike...

Many gait training programs are based on supervised learning principles: an individual is guided towards a desired pattern with directional error feedback. While this results in rapid adaptation, improvements quickly disappear. This study tested the hypothesis that reinforcement approach improves retention and transfer of new pattern. The pilot larger experiment presented. Healthy subjects were randomly assigned to either group, who received explicit instructions feedback while they learned...

Low back pain (LBP) is a common cause of lost playing time and can be challenging clinical condition in competitive athletes. LBP athletes may associated with joint ligamentous hypermobility impairments activation coordination the trunk musculature, however there limited research this area.To determine if an association between altered lumbar motor control, mobility low sample athletes.Fifteen were matched by age, gender body mass index (BMI) controls without LBP. Athletes completed...

To determine whether repeat exposure to force perturbations during treadmill training can induce long-term retention of improved step length and overall improvements in locomotor function persons with spinal cord injury.Fourteen patients injury were recruited randomly assigned swing resistance or assistance groups. A controlled force, for groups, respectively, was applied both legs through a cable-driven robotic system training. Each participant trained 3 times per week 6 weeks. Step length,...

Chronic ankle instability (CAI) is a major public health concern and adversely affects people's mobility quality of life. Traditional assessment methods are subjective qualitative by means clinician observation patient self-reporting, which may lead to inaccurate reduce the effectiveness treatment in clinical practice. Gait analysis becomes commonly used approach for monitoring human motion behaviors, can be applied specific diagnosis CAI. However, it still challenging recognize pathological...

Studies in arm motor adaptation suggest that introducing small errors during the period may lead to a longer retention of aftereffect than large errors. However, it is unclear whether this notion can be generalized locomotor patients with incomplete spinal cord injury (SCI). We hypothesized smaller error size SCI. recruited 12 subjects SCI for study. They were instructed walk on treadmill while light-, medium-, and heavy-resistance loads applied right ankle perturb leg swing. Each three...

Background The Activities-specific Balance Confidence (ABC) scale measures confidence in performing various ambulatory activities without falling or experiencing a sense of unsteadiness. Objectives This study (1) examined the ABC (0-100) using Rasch analysis, (2) assessed statistically reliable change, and (3) developed functional staging to guide clinical interpretation patient's improvement. Methods authors rating-scale structure, item difficulty hierarchy, fit, person-item match,...

In response to global energy shortage and warming, liquid-type energy-yielding thermocells regulated by temperature differences are developed in this study, enabling generation of electric power from excess thermal or waste heat. The cells comprise nature pigments wastewater. stable functional within a narrow range difference, which can be as small 40 °C. Under °C difference with the solar cell size 1 cm2, daily generated designed reach high 10022.4 KJ/m2 just day, is highest...

Study Design Controlled laboratory study. Background Recurrent ankle sprains associated with chronic instability (CAI) occur not only in challenging sports but also daily walking. Understanding whether and how CAI alters feedback feedforward controls during walking may be important for developing interventions prevention or treatment. Objective To understand is changes control when individuals are subjected to experimental perturbation Methods Twelve subjects 12 walked on a treadmill while...

Previous studies have shown that saccade plans during natural scene viewing can be programmed in parallel. This evidence comes mainly from temporal indicators, i.e., fixation durations and latencies. In the current study, we asked whether eye movement positions recorded also reflect parallel programming of saccades. As participants viewed scenes preparation for a memory task, their inspection was suddenly disrupted by transition to another scene. We examined saccades after were invariably...

This project was undertaken to describe percentage differences in the grip strength between dominant and nondominant-sides of left- right-handed males females across age span. Data used were from population-based samples participants: 13,653 2011-2014 National Health Nutrition Examination Survey (NHANES) 3,571 2011 normative phase Institutes (NIH) Toolbox project. Depending on how calculated, overall a mean 5.0-5.6% greater than nondominant side. The significantly for individuals who...