This study was aimed to analyse the lower limb kinematics during the change of direction (COD) performance with the dominant (DL) and non-dominant (NDL) leg using linear (traditional kinematics) and nonlinear (Self Organising Map-based cluster analysis) approaches. Three 5-0-5 COD performances with the DL and three with the NDL were performed by 23 (aged 21.6 ± 2.3 years) collegiate athletes. No significant difference was observed between the COD duration, and approach speed of DL and NDL. Significantly greater ankle abductions, knee and hip external rotations were identified in COD with DL, compared to NDL (p < .001, d > 0.8). Self Organising Maps portrayed a completely different coordination pattern profile during change of direction performance with the DL and NDL. The cluster analysis illustrated similar inter-individual coordination patterning when participants turned with their DL or NDL. No visible relationship was observed in the cluster analysis of the lower limb joint angles and angular velocities. Outcomes of this study portrayed that coordination patterning (combination of joint angles and the rate of change of angles) could portray the movement patterning differences in different tasks, while a sole investigation on the joint angles or angular velocities may not reveal the underlying mechanisms of movement patterning.

• MeSH
• Leg * physiology   MeSH
• Biomechanical Phenomena MeSH
• Lower Extremity * physiology   MeSH
• Functional Laterality * physiology   MeSH
• Ankle physiology   MeSH
• Humans MeSH
• Young Adult MeSH
• Motor Skills * physiology   MeSH
• Nonlinear Dynamics MeSH
• Movement physiology   MeSH
• Cluster Analysis MeSH
• Athletic Performance * physiology   MeSH
• Check Tag
• Humans MeSH
• Young Adult MeSH
• Male MeSH
• Female MeSH
• Publication type
• Journal Article MeSH

Starting point: Cervical dystonia is a common form of focal dystonia, resulting in neck pain and the development of asymmetric neck and head postures. These abnormal postures contribute to muscular impairment, muscle imbalances, and, as a result, alteration in movement patterns. This study aimed to compare the asymmetry of cervical muscle activation pattern during cervical flexion movements between individuals with cervical dystonia and healthy young subjects. Methods: Eight individuals with cervical dystonia and eight healthy participants participated in this study. We recorded muscle activation from five pairs of cervical muscles (sternocleidomastoid, scalene, trapezius, suprahyoid, and infrahyoid) using surface electromyography. Normalized cross-correlation was used to analyze the symmetry of bilateral muscle activation. Results: The results showed significant differences in muscle activation symmetry between the cervical dystonia group and healthy subjects. Notably, patients with cervical dystonia exhibited less symmetric activation in the trapezius and sternocleidomastoid muscles compared to healthy controls (p < 0.01 and p < 0.05, respectively). Additionally, the trapezius muscle on the dystonic side lacked coordination with other cervical muscles, unlike in healthy individuals who displayed better coordination. Conclusions: These findings underline the challenges faced by individuals with cervical dystonia in achieving symmetric activation and coordination of cervical muscles. Evaluating cervical muscle activation symmetry may be a valuable approach for assessing motor impairments in these patients.

Úvod: Badmintonová zranění jsou i přes celosvětovou oblibu tohoto sportu relativně opomíjenou problematikou. Metodika vyhledávání studií: Tento přehledový článek se zaměřuje na literaturu a výzkum zranění v badmintonu a na možnosti konzervativní léčby společně s rehabilitací těchto zranění. Jedním z cílů bylo shrnout poznatky z dostupných vědeckých studií publikovaných do roku 2023. Vyhledávání relevantní literatury bylo realizováno v databázích PubMed a Web of Science pomocí anglických ekvivalentů klíčových slov: badminton, zranění, etiologie, prevence, fyzioterapie. Výsledky: Celkem bylo pro tvorbu článku nalezeno a využito 51 studií, které se zabývají rizikovými faktory badmintonových zranění, jejich konkrétním typem a incidencí (zejména incidencí a rizikovými faktory), fyziologickými nároky badmintonu a možnostmi léčby daných poranění s důrazem na sportovní fyzioterapii. Studie zabývající se specificky možnostmi rehabilitace a jiných konzervativních postupů pro hráče badmintonu nebyly nalezeny. Možnosti rehabilitace vycházejí z aktuálních poznatků vztahující se obecně zejména k akutním a chronickým zraněním ve sportu. Diskuze: Ze současné evidence se jako efektivní přístup ke zraněním z přetížení jeví progresivní zatížení prvky silového tréninku s cílem navození pozitivních adaptačních změn v postižené tkáni. Ve sportovní fyzioterapii bývá hojně užíváno např. prvků kryoterapie, která ovšem pro podporu hojení a regenerace úponových bolestí nemá dostatečnou evidenci. Zranění, která vznikají akutním nedostatkem kapacity tkáně snášet nadměrnou zátěž, by měla být léčena primárně pohybovou terapií s konkrétně nastavenými parametry. Konkrétní rehabilitační postupy pozdní fáze návratu do hry jsou podmíněny specifikami sportu, jeho biomechanikou a konkrétním typem zranění. Závěr: I když je k většině zranění v badmintonu přistoupeno konzervativní metodou léčby, neexistuje dostatečná evidence vztahující se k rehabilitaci zranění specificky u badmintonistů. Cílem léčby badmintonových zranění je snížení bolestivosti, zvýšení kapacity, zlepšení koordinace a balance. Z východisek práce vyplývají následně i možnosti prevence zranění a konzervativních léčebných postupů zranění s akcentem na sportovní fyzioterapii.

Introduction: Badminton injuries are a relatively neglected issue despite the worldwide popularity of the sport. Methodology of the study search: This review article focuses on the literature and research on badminton injuries and conservative treatment options along with rehabilitation of these injuries. One of the objectives was to summarize the findings from available scientific studies published up until 2023. The search for relevant literature was performed in PubMed and Web of Science databases using the English equivalents of the keywords: badminton, injury, etiology, prevention, and physiotherapy. Results: A total of 51 studies were identified and used for the development of the article, which dealt with the risk factors of badminton injuries, their specific type and incidence (especially incidence and risk factors), the physiological demands of badminton, and treatment options for the injuries in question, with an emphasis on sports physiotherapy. Studies specifically addressing rehabilitation options and other conservative treatments for badminton players were not found. Rehabilitation options are based on current knowledge related to acute and chronic injuries in the sport in general. Discussion: From current evidence, progressive loading with elements of strength training to induce positive adaptive changes in the affected tissue appears to be an effective approach to overuse injuries. For example, elements of cryotherapy are widely used in sports physiotherapy, but there is insufficient evidence to support healing and regeneration of tendon pain. Injuries that result from an acute lack of tissue capacity to tolerate excessive load should be treated primarily with movement therapy with specific parameters. Specific rehabilitation procedures of the late phase of return to play are conditioned by the specifics of the sport, its biomechanics, and the particular type of injury. Conclusion: Although most injuries in badminton are treated conservatively, there is insufficient evidence relating to injury rehabilitation specifically for badminton players. The goal of treatment for badminton injuries is to reduce soreness, increase capacity, and improve coordination and balance. The premise of this article subsequently suggests options for injury prevention and conservative injury treatments with an emphasis on sports physiotherapy.

• MeSH
• Humans MeSH
• Racquet Sports MeSH
• Athletic Injuries * etiology   prevention & control   rehabilitation   MeSH
• Physical Therapy Modalities MeSH
• Check Tag
• Humans MeSH
• Publication type
• Review MeSH

Cílem studie bylo zjistit, zda je střídavý nácvik v prostředí běžné školy realizovatelný a zda u našeho výzkumného souboru, tvořeného školní třídou, povede ke vyšší míře retence dovedností ve srovnání s blokovým nácvikem. Studie vycházela z dosavadních výzkumů zaměřených na vliv kontextuální in- terference, avšak nově na tuto problematiku nahlížela z didaktického hlediska v kontextu standardního prostředí české školy. Výzkumného šetření se zúčastnilo 38 žáků šesté třídy základní školy. V rámci hodin tělesné výchovy byla zkoumána efektivita blokového a střídavého nácviku při osvojování tří specifických pohybových dovedností. Vybrané dovednosti byly pro účastníky nové, atraktivní a odpo- vídaly jejich úrovni obtížnosti. Nácvik probíhal ve dvou skupinách (dívky a chlapci) za rovnocenných podmínek, přičemž jedna dovednost byla nacvičována blokově a zbývající dvě střídavě. Každé doved- nosti bylo věnováno celkem 30 minut nácviku rozdělených do tří týdnů. Výsledky učení byly hodnoceny bezprostředně po skončení nácviku a následně po čtyřtýdenní pauze pomocí retenčního testu. Srovnání blokového a střídavého režimu nácviku pomocí Mann-Whitneyho U testu ukázalo, že střídavý nácvik byl u našeho souboru efektivnější metodou učení. Z řízených rozhovorů a pozorování vyplynulo, že střídavý nácvik kladl vyšší nároky na organizaci výuky, motivaci žáků a didaktické kompetence učitele. Celkově lze konstatovat, že střídavý nácvik je v podmínkách školní tělesné výchovy realizovatelný a z hlediska retence dovedností může být efektivnější než tradiční blokový přístup.

The aim of the study was to determine whether variable practice is feasible in a mainstream school setting and whether our research population, consisting of a school classroom, would lead to a higher rate of skill retention compared to block practice. The study was based on previous research focusing on the influence of contextual interference, but it took a new didactical perspective on this issue in the context of a standard Czech school environment. Thirty-eight sixth grade elementary school pupils participated in the research investigation. The effectiveness of block and variable drills in the acquisition of three specific movement skills was investigated in physical education classes. The selected skills were new and attractive to the participants and matched their level of difficulty. Training was conducted in two groups (girls and boys) under equivalent conditions, with one skill practiced in block and the remaining two skills practiced variably. Each skill received a total of 30 minutes of practice divided into three weeks. Learning outcomes were assessed immediately after the end of practice and then after a four-week break using a retention test. Comparison of block and variable practice mode using Mann-Whitney U test showed that variable practice was the more effective learning method for our sample. The guided interviews and observations showed that the variable training placed higher demands on the organisation of teaching, the motivation of the pupils and the didactic competence of the teacher. Overall, it can be concluded that variable practice is feasible in school physical education conditions and may be more effective than the traditional block approach in terms of skill retention.

• MeSH
• Child MeSH
• Humans MeSH
• Motor Skills * MeSH
• Motor Activity physiology   MeSH
• Psychomotor Performance physiology   MeSH
• Retention, Psychology MeSH
• Physical Education and Training * methods   MeSH
• Learning MeSH
• Educational Technology methods   education   MeSH
• Check Tag
• Child MeSH
• Humans MeSH
• Male MeSH
• Female MeSH
• Publication type
• Clinical Study MeSH

Chronic ataxias with onset after the age of 50 differ significantly from ataxias with childhood or early adulthood onset. This article focuses on late-onset hereditary ataxias, particularly on new subtypes such as CANVAS (Cerebellar Ataxia, Neuropathy, and Vestibular Areflexia Syndrome) and SCA27B (Spinocerebellar Ataxia type 27B). It describes their clinical manifestations and diagnostic methods, including genetic testing and differential diagnosis against other sporadic ataxias, such as Multiple system atrophy type C. We present the main principles of diagnosing hereditary ataxias and the diagnostic approach used at the Center of Hereditary Ataxias at the Motol University Hospital, which includes a combination of laboratory, imaging, and genetic tests that allow for the exclusion of acquired causes and a pragmatic diagnosis of hereditary diseases.

• Keywords
• CANVAS, FXTAS,
• MeSH
• Ataxia * diagnosis   genetics   classification   MeSH
• Diagnosis, Differential MeSH
• Middle Aged MeSH
• Humans MeSH
• Multiple System Atrophy diagnosis   genetics   MeSH
• Aged MeSH
• Spinocerebellar Ataxias * diagnosis   genetics   MeSH
• Check Tag
• Middle Aged MeSH
• Humans MeSH
• Aged MeSH
• Publication type
• Research Support, Non-U.S. Gov't MeSH
• Review MeSH

Research has shown that external focus (EF) instructions-directing attention to intended movement effects (e.g., ball's or dart's path)-are more effective for enhancing motor performance and learning than internal focus (IF) instructions, which focus on body movements (e.g., arm or foot motion). Nonetheless, the impact of visuospatial working memory capacity (WMC) in this context, especially among children, has been less investigated. This research sought to examine the effects of EF compared to IF on the skill acquisition and motor learning of a dart-throwing task among children with both high and low visuospatial WMC. Forty-eight boys aged 9-11 (Mage: 9.67 ± 0.76 years) were grouped by high or low WMC based on spatial span and memory tests, then assigned to receive either EF or IF instructions. The experiment comprised three stages: practice, retention, and two transfer tests, including throwing from a longer distance and a dual-task scenario with added cognitive load (tone counting). Results showed that EF outperformed IF at all stages. While WMC did not affect performance during practice and retention, children with low WMC performed better than those with high WMC during the longer distance test. In dual-task conditions, an EF continued to surpass an IF, whilst the WMC exerted no significant impact. The present findings suggest that an EF relative to an IF promotes more automatic movement and enhanced multitasking, while the impact of visuospatial WMC was less than expected, highlighting the benefits of EF in teaching motor skills to children, regardless of visuospatial WMC.

• MeSH
• Child MeSH
• Memory, Short-Term * physiology   MeSH
• Humans MeSH
• Motor Skills * physiology   MeSH
• Attention * physiology   MeSH
• Psychomotor Performance * physiology   MeSH
• Learning physiology   MeSH
• Space Perception physiology   MeSH
• Visual Perception physiology   MeSH
• Check Tag
• Child MeSH
• Humans MeSH
• Male MeSH
• Publication type
• Journal Article MeSH

RATIONALE: Patients who experience seizures, including PNES, are usually advised to discontinue driving, or have their driving privileges revoked until a determined period of seizure-freedom is achieved. In this retrospective study, patients with PNES who requested driving privileges or reported having resumed driving were compared to those who did not on measures of depression, anxiety, PTSD, and cognitive flexibility/motor speed. METHODS: DiagnosisofPNESwasconfirmedwithvideo-EEG.Demographicand clinical dataand requests for reinstatement of driving privileges (requiring 6 or more months seizure freedom) and reports of decisions to resume driving were noted. Tests of motor speed and hand eye coordination and self-report questionnaires of depression, anxiety and PTSD administered as part of neuropsychological assessment were analyzed. RESULTS: A total of 403 patients with PNES evaluated in 2010-2020 were identified. Of those, 365 patients were eligible for inclusion, and of those, 60 applied for driving privileges or reported that they resumed driving. When the two groups were compared, the group that applied for driving privileges or decided to resume driving was significantly less depressed (p = 0.001) when tested than the group that did not. Furthermore, a significant difference was seen in measures of motor performance between those who requested to resume driving and those who did not (DKEFS T1, p = 0.006, DKEFS T2, p = 0.001, DKEFS T3, p = 0.002, DKEFS T4, p = 0.001; GPT dominant, p = 0.05, GPT non-dominant, p = 0.003). CONCLUSION: Driving a motor vehicle is a useful measure of improvement for PNES because patients with seizures are required to discontinue driving until seizure-freedom is achieved. This study revealed that lower levels of depression and better fine motor functioning were associated with reported seizure-freedom and driving resumption. Depression is commonly associated with diminished performance (slower motor response times and impaired fine motor movements) on tests of motor functioning, both of which may result in less interest in pursuing permission to resume driving. These findings suggest that mood symptoms (and associated performance on measures of motor speed and coordination) may have prognostic significance in patients diagnosed with PNES. This also suggests that timely treatment of depression in newly diagnosed patients with PNES may be indicated.

• MeSH
• Depression psychology   diagnosis   etiology   MeSH
• Adult MeSH
• Electroencephalography MeSH
• Conversion Disorder psychology   diagnosis   MeSH
• Middle Aged MeSH
• Humans MeSH
• Young Adult MeSH
• Neuropsychological Tests MeSH
• Stress Disorders, Post-Traumatic psychology   diagnosis   MeSH
• Psychomotor Performance physiology   MeSH
• Psychophysiologic Disorders diagnosis   psychology   MeSH
• Retrospective Studies MeSH
• Automobile Driving * psychology   MeSH
• Anxiety psychology   etiology   diagnosis   MeSH
• Seizures * psychology   diagnosis   MeSH
• Check Tag
• Adult MeSH
• Middle Aged MeSH
• Humans MeSH
• Young Adult MeSH
• Male MeSH
• Female MeSH
• Publication type
• Journal Article MeSH

INTRODUCTION: Despite the widespread use of the Movement Assessment Battery for Children, 2nd edition (MABC-2), little is known about the sensitivity or specificity of the individual items to detect probable Developmental Coordination Disorder (p-DCD). This study examined which specific MABC-2 items were most sensitive to identify children with p-DCD and which items would predict p-DCD. METHODS: Based on a large dataset including European and African children aged 3-16 years (n = 4916, typically developing (TD, 49.6 % boys); n = 822 p-DCD (53.1 % boys), Hedges' g was calculated to establish the standardized mean difference (SMD) between p-DCD/TD. SMDs were considered substantial when absolute values at or above 1.4. Sensitivity and specificity of the raw MABC-2 item scores predicting p-DCD/TD per age band (AB) were established with logistic regression analysis. RESULTS: AB1: Children with p-DCD performed substantially poorer on threading beads (SMD: -1.61) and jumping on mats (SMD: 1.61). By combining all items and the country of origin, the sensitivity was 61.7 % and specificity 98.6 %. AB2: Walking heel-to-toe forwards (SMD: 1.65) was substantially poorer in p-DCD. By combining all items and the country of origin, the sensitivity was 79.0 % and specificity 97.6 %. AB3: Catching a ball with the preferred (SMD: 1.8) or non-preferred (SMD: 1.61) hand, and for walking heel-to-toe backwards (SMD: 1.78) were substantially poorer in p-DCD. All items combined resulted in a sensitivity of 94.4 % and specificity of 99.6 %. CONCLUSION: Not all MABC-2 items are equally sensitive to distinguish between performances of p-DCD and TD. Despite the good specificity, the sensitivity was only moderate in AB1-2, the age at which children learn culturally influenced motor skills.

• MeSH
• Child MeSH
• Humans MeSH
• Logistic Models MeSH
• Adolescent MeSH
• Motor Skills MeSH
• Movement MeSH
• Motor Skills Disorders * diagnosis   MeSH
• Child, Preschool MeSH
• Sensitivity and Specificity * MeSH
• Check Tag
• Child MeSH
• Humans MeSH
• Adolescent MeSH
• Male MeSH
• Child, Preschool MeSH
• Female MeSH
• Publication type
• Journal Article MeSH
• Geographicals
• Africa MeSH
• Europe MeSH

Správný psychomotorický vývoj v prvním roce života je důležitý pro celý další vývoj dítěte. Popisujeme psychomotorický vývoj u zdravého dítěte po jednotlivých měsících s důrazem na zásadní vývojové mezníky v tomto období. Korespondující autorka: MUDr. Renata Cíbochová Klinika dětské neurologie 2. LF UK a FN Motol V úvalu 84 150 06 Praha 5-Motol Renata.Cibochova@fnmotol.cz

Correct psychomotor development in the first year of a life is essential for all the further development. We aim to describe psychomotor development in a healthy child month after month, with an emphasis on essential developmental milestones.

• Keywords
• psychomotorický vývoj,
• MeSH
• Infant MeSH
• Humans MeSH
• Infant, Newborn MeSH
• Movement physiology   MeSH
• Prone Position physiology   MeSH
• Psychomotor Performance physiology   MeSH
• Reflex physiology   MeSH
• Child Development * physiology   MeSH
• Check Tag
• Infant MeSH
• Humans MeSH
• Infant, Newborn MeSH
• Publication type
• Review MeSH

Understanding the intricacies of human movement coordination and variability during running is crucial to unraveling the dynamics of locomotion, identifying potential injury mechanisms and understanding skill development. Identification of minimum number of cycles for calculation of reliable coordination and its variability could help with better test organization and efficient assessment time. By adopting a cross-sectional study design, this study investigated the minimum required cycles for calculating hip-knee, hip-ankle and knee-ankle coordination and their variability using a continuous relative phase (CRP) method. Twenty-nine healthy adults ran on a treadmill at speeds of 9, 12.5, and 16 km.h-1 while 3D kinematic data of their lower limbs were recorded using 6 optoelectronic cameras. Using Intraclass Correlation Coefficient (ICC) analysis, reliability between CRP and its variability (CRPv) in different gait cycles (3, 5, 10, 20, 30) was assessed for each speed. A minimum of 10 cycles was required for CRP calculation across all speeds, whereas CRPv necessitated a minimum of 30 cycles for moderate to good reliability. While increasing the number of cycles improved ICC values for inter-joint CRP, the same trend was not consistently observed for CRPv, emphasizing the importance of separately assessing CRP and its variability metrics.

• MeSH
• Running * physiology   MeSH
• Biomechanical Phenomena MeSH
• Gait * physiology   MeSH
• Adult MeSH
• Ankle Joint * physiology   MeSH
• Knee Joint * physiology   MeSH
• Hip Joint physiology   MeSH
• Humans MeSH
• Young Adult MeSH
• Cross-Sectional Studies MeSH
• Check Tag
• Adult MeSH
• Humans MeSH
• Young Adult MeSH
• Male MeSH
• Female MeSH
• Publication type
• Journal Article MeSH