Influence of some anthropometric and motor parameters on triple jump

Athletics disciplines are characterized by motor movements that can be successfully applied during the educational process or through other forms of exercise, which significantly affect the development of general psychophysical abilities of individuals. Each of the disciplines of athletics acts on the development of individual abilities, but also on the general psychophysical status of man and for this reason athletics is called the "queen of sports". Athletic activities have a characteristic of participant inclusion.The values of the paper will be based on the purpose of anthropometric, basic motor and specific motor characteristics of students aged 21 years ± 6 months.A total of 70 male students, 7 anthropometric variables, 7 motor variables and 1 specific motor variable that were tested during the period of May, of the academic year, 2020/2021 were included in the research.In the basic parameters students, based on the results achieved in this anthropometric variable, are presented as a moderately homogeneous group.Although it is seen that the acquired flexibility and convexity (Skewness and Kurtosis) have a pronounced asymmetry, in the vast majority of anthropometric variables. Although it is seen that the acquired flexibility and convexity (Skewness and Kurtosis) have a pronounced asymmetry, in the vast majority of motor and criterion variables. Thus the statistically significant coefficients of the variables with the highest degree of statistical inference (p <0.01) are denoted by two asterisks. With easier statistical conclusion criterion (p <0.05) correlation coefficients. All variables have statistically significant correlation to all anthropometric, basic and criterion motor variables.

TWMP-02. Supplementary motor area syndrome in glioma surgery - towards a classification system based on clinical and imaging data

OBJECTIVES Surgical resection of gliomas involving the supplementary motor area (SMA) frequently results in a symptom complex commonly described as „SMA syndrome“, which is characterized by transient contralateral akinesia and mutism. As factors potentially influencing the severity and duration of symptoms still remain elusive, we aim to further investigate potential predictors in a multicentric cohort of glioma patients. METHODS Fifty patients with gliomas located in the superior frontal gyrus from 3 centers were included in this retrospective study. Patients with injury of M1 and/or the corticospinal tract were excluded. Early postoperative motor outcome, the occurrence of mutism and duration of acute symptoms in days were assessed. The long-term outcome was assessed in follow-up examinations 3 months after surgery. Atlas-based lesion-symptom mapping was performed using postoperative MR imaging estimating surgical grey matter damage as well as white matter disconnection severity. Associations between functional outcome and imaging findings were analyzed using group tests and correlation analyses. RESULTS Median duration of symptoms in the cohort was 3 days (range: 1 – 42 days). Persistent deficits concerning fine motor movements and speech after initial recovery were found in 27 patients (54%). Disconnection of the central segment of the corpus callosum was associated with longer symptom duration (FDR corr. p &lt; 0.05), while disconnection of the mid-posterior segment of the corpus callosum was associated with persistent deficits at follow-up (FDR corr. p &lt; 0.05). CONCLUSIONS The present study shows a high variability regarding the recovery time of postoperative SMA syndrome and a high prevalence of persistent deficits in fine motor movements and speech after initial recovery of acute symptoms. The pivotal role of interhemispheric connectivity in the recovery process is reinforced. These findings will help neurosurgeons in patient consultation and provide a foundation for future studies aiming to establish prediction models of the SMA syndrome.

Does it pay to imitate? No evidence for social gains from lexical imitation

According to an influential hypothesis, people imitate motor movements to foster social interactions. Could imitation of language serve a similar function? We investigated this question in two pre-registered experiments. In Experiment 1, participants were asked to alternate naming pictures and matching pictures to a name provided by a partner. Crucially, and unknown to participants, the partner was in fact a computer program which in one group produced the same names as previously used by the participant, and in the other group consistently produced different names. We found no difference in how the two groups evaluated the partner or the interaction and no difference in their willingness to cooperate with the partner. In Experiment 2, we made the task more similar to natural interactions by adding a stage in which a participant and the partner introduced themselves to each other and included a measure of the participant's autistic traits. Once again, we found no effects of being imitated. We discuss how these null results may inform imitation research.

Seizures in patients with kidney diseases: a neglected problem?

Nephrologists may encounter many systemic problems in their patients, including involvement of the neurological system and the development of seizures. Seizures are defined as abnormal neurological functions that cause overstimulation of neurons in the cerebral cortex or limbic system. Seizures may be focal or generalized depending on their origin and may have tonic, clonic, tonic-clonic, or myoclonic character depending on the level of involvement of the motor movements. Patients with kidney disease may develop seizures due to etiologies seen in general population (such as intracranial bleeding, cerebrovascular events, tumours, infections, and intoxications) or due to kidney related etiologies (such as uremic encephalopathy, dialysis disequilibrium syndrome, and hyponatremia). Management of seizures in kidney patients is challenging for proper determination of the type and dosage of antiepileptic drugs due to varying renal clearances. This review covers the major causes of new-onset seizures in patients with acute kidney injury, electrolyte imbalances, chronic kidney disease, dialysis, renal transplantation, or hypertension and the management approaches.

Single-cell transcriptomic analysis unveils spinal motor neuron subtype diversity underpinning the water-to-land transition in vertebrates

Spinal motor neurons (MNs) integrate sensory stimuli and brain commands to generate motor movements in vertebrates. Distinct MN populations and their diversity has long been hypothesized to co-evolve with motor circuit to provide the neural basis from undulatory to ambulatory locomotion during aquatic-to-terrestrial transition of vertebrates. However, how these subtypes are evolved remains largely enigmatic. Using single-cell transcriptomics, we investigate heterogeneity in mouse MNs and discover novel segment-specific subtypes. Among limb-innervating MNs, we reveal a diverse neuropeptide code for delineating putative motor pool identities. We further uncovered that axial MNs are subdivided by three conserved and molecularly distinct subpopulations, defined by Satb2, Nr2f2 or Bcl11b expression. Although axial MNs are conserved from cephalochordates to humans, subtype diversity becomes prominent in land animals and appears to continue evolving in humans. Overall, our study provides a unified classification system for spinal MNs and paves the way towards deciphering how neuronal subtypes are evolved.

Spinal and corticospinal excitability in response to reductions in skin and core temperature via whole-body cooling

Cold stress impairs fine and gross motor movements. Although peripheral effects of muscle cooling on performance are well understood, less is known about central mechanisms. This study characterized corticospinal and spinal excitability during surface cooling, reducing skin (Tsk) and core (Tes) temperature. Ten subjects (3 female) wore a liquid-perfused suit and were cooled (9°C perfusate, 90 min) and rewarmed (41°C perfusate, 30 min). Transcranial magnetic stimulation [eliciting motor evoked potentials (MEPs)], as well as transmastoid [eliciting cervicomedullary evoked potentials (CMEPs)] and brachial plexus [eliciting maximal compound motor action potentials (Mmax)] electrical stimulation, were applied at baseline, every 20 min during cooling, and following rewarming. Sixty minutes of cooling, reduced Tsk by 9.6°C (P<0.001) but Tes remained unchanged (P=0.92). Tes then decreased ~0.6℃ in the next 30 minutes of cooling (P<0.001). Eight subjects shivered. During rewarming, shivering was abolished, and Tsk returned to baseline while Tes did not increase. During cooling and rewarming, Mmax, MEP, and MEP/Mmax were unchanged from baseline. However, CMEP and CMEP/Mmax increased during cooling by ~85% and 79% (P<0.001) respectively, and remained elevated post-rewarming. Results suggest that spinal excitability is facilitated by reduced Tsk during cooling, and reduced Tes during warming, while corticospinal excitability remains unchanged. ClinicalTrials.gov ID NCT04253730 Novelty: • This is the first study to characterize corticospinal, and spinal excitability during whole body cooling, and rewarming in humans. • Whole body cooling did not affect corticospinal excitability. • Spinal excitability was facilitated during reductions in both skin and core temperatures.

Determination of Proliferative, Cytostatic Chraracteristics of Methylcobalamin on Distrorted Purkinje Cell Layer of Cerebellum

Background: The cerebellum principally the motor organ is involved in the regulation of muscular tone and skilled motor movements. The cerebellar histology consists of three layers and the middle is the Purkinje cell layer which consists of pyramidal shaped purkinje cells. Clinical research shows scanty literature on the beneficial effects of Methylcobalamin on Purkinje cells layer. Aim: Our aim was to bring to light the need for prescribing Methylcobalamin in the masses and patient suffering from motor incoordination. Method: 15 animals were given Methylcobalamin and the changes in the thickness of Purkinje cell layer ware recorded at twelve weeks Result: The morphometric analysis showed restored thickness of Purkinje cell layer Conclusion: The recorded data of the regenerated purinje cell layer thickness proved that the use of Methylcobalamin is mandatory as protective drug in damaged neuronal tissue. Key words: Proliferative, Cytostatic, Purkine cell layer

A comparison of hand function in Colles and scaphoid casts using a modified Jebsen Hand Function Test

This study investigates the impact of Colles versus scaphoid casts on hand function in modern day activities using the Jebsen Hand Function Test with additional modified subtests including texting on a mobile phone, using a computer mouse and typing on a computer keyboard. Twenty healthy volunteers were recruited for the study. Study participants performed worse in a scaphoid cast compared to a Colles cast; most evident in tasks involving fine motor movements such as writing, picking up small objects and stacking checkers (mean time difference 2.3 seconds, 1.5 seconds and 1.2 seconds, respectively) and tasks involving forearm rotation such as card turning and picking up large light objects (mean time difference 1.6 seconds and 1.1 seconds, respectively). This study highlights the importance of careful consideration when assessing the need for thumb immobilization, due to its impact on hand function when performing both traditional and modern-day activities of daily living.

Using Dynamics of Eye Movements, Speech Articulation and Brain Activity to Predict and Track mTBI Screening Outcomes

Repeated subconcussive blows to the head during sports or other contact activities may have a cumulative and long lasting effect on cognitive functioning. Unobtrusive measurement and tracking of cognitive functioning is needed to enable preventative interventions for people at elevated risk of concussive injury. The focus of the present study is to investigate the potential for using passive measurements of fine motor movements (smooth pursuit eye tracking and read speech) and resting state brain activity (measured using fMRI) to complement existing diagnostic tools, such as the Immediate Post-concussion Assessment and Cognitive Testing (ImPACT), that are used for this purpose. Thirty-one high school American football and soccer athletes were tracked through the course of a sports season. Hypotheses were that (1) measures of complexity of fine motor coordination and of resting state brain activity are predictive of cognitive functioning measured by the ImPACT test, and (2) within-subject changes in these measures over the course of a sports season are predictive of changes in ImPACT scores. The first principal component of the six ImPACT composite scores was used as a latent factor that represents cognitive functioning. This latent factor was positively correlated with four of the ImPACT composites: verbal memory, visual memory, visual motor speed and reaction speed. Strong correlations, ranging between r = 0.26 and r = 0.49, were found between this latent factor and complexity features derived from each sensor modality. Based on a regression model, the complexity features were combined across sensor modalities and used to predict the latent factor on out-of-sample subjects. The predictions correlated with the true latent factor with r = 0.71. Within-subject changes over time were predicted with r = 0.34. These results indicate the potential to predict cognitive performance from passive monitoring of fine motor movements and brain activity, offering initial support for future application in detection of performance deficits associated with subconcussive events.