Search results

1

Selected Coordination Motor Abilities in Elite Wrestlers and Taekwon-Do Competitors

100%

Gierczuk D., Bujak Z., Rowiński J., Dmitriyev A.

Polish Journal of Sport and Tourism

|

2012

|

vol. 19

|

issue 4

230-234

EN

Introduction. The aim of the study was to compare CMAs in elite wrestlers and taekwon-do competitors. Material and methods. Forty-nine Greco-Roman wrestlers and ITF taekwon-do competitors were included in the study. The wrestlers were 21.9±2.74 years old, while the taekwon-do competitors were 22.7±5.78 years old. The former group had between 7 and 14 years' training experience and the latter group had from 6 to 16 years' experience. All subjects were elite sportspeople (between first class and international master class levels). Five CMAs were assessed using 14 indices. Computer tests from the Vienna Test System were employed in the study. Results. It was shown that there were no significant differences in CMA levels between wrestlers and taekwon-do competitors. Wrestlers from higher sports classes outperformed competitors who possessed lower sports classes in the majority of CMA indices. Statistically significant differences were observed for simple reaction, movement coupling and high frequency of movements. Taekwon-do competitors at the international master sports class (IM) level scored better than athletes who were at national master class (NM) and first class (I) levels in spatial orientation, reaction time, movement coupling and high frequency of movements. Regardless of the type of combat sport, competitors demonstrated high individual differences in CMAs, which may indicate that a focus on coordination improvement could increase training effectiveness. Conclusions. Further research on identifying predominant CMAs in sportspeople at different levels of competition, particularly in those achieving significant sports successes may be conducted. Tests to thoroughly diagnose coordination should be employed in such investigations.

2

Participation in Computer Games Vs. Coordination Motor Abilities and Body Composition in Boys From Rural Areas of Poland

100%

Sterkowicz S., Jaworski J.

|

EN

Purpose. The present study attempted to determine the effect of the number of hours spent playing computer games per week on somatic characteristics and the performance of selected coordination motor abilities. Methods. Ninety-seven prepubertal boys from rural areas of southern Poland were recruited. Selected coordination motor abilities were assessed by use of computer tests and a questionnaire was administered to determine the amount of time spent playing computer games. Basic somatic characteristics such as body height, body mass, body fat percentage (%PF), fat mass (FM), fat-free mass (FFM), and body mass index (BMI) were measured. Descriptive statistics were calculated mean and standard deviation ( , sd) for the studied coordination abilities and somatic characteristics. One-way ANOVA for independent samples was employed to determine the differentiation between the results of the studied variables depending on the mean numbers of hours spent playing computer games per week. Results. Analysis revealed statistically significant differences between the results and the number of hours spent playing games, specifically for kinesthetic differentiation, spatial orientation, and the speed, accuracy, and precision of movements (in the number of committed errors). The lowest somatic characteristics including BMI was observed in the group of boys who spent the least amount of time playing computer games. Conclusions. It was found playing computer games 8 to 11 hours a week positively affected coordination motor ability, although individuals who played more than this amount of computer games had a higher incidence to be overweight or obese.

3

Effect of difficulty manipulation strategies on acquisition, retention and associated perceptions in fine motor coordination task learning in young school boys

100%

Elghoul Y., Bahri F., Chaari N., Ezeddinie S., Masmoudi L., Souissi N., Frikha M.

|

EN

This study investigated whether difficulty manipulation strategies affect learning in the fine motor coordination task, perceived competence (PC) and perceived difficulty (PD). Thirty -nine novices’ right - handed boys (age 11.3 ± 0.4 years; stature 147 ± 8.94 cm ; body mass 40.57 ± 0.07 kg; mean ± SD), volunteers, were assigned to either control group (CTG: no difficulty manipulation)and two experimental groups: group 1 (EG1: one -dimension difficulty manipulation) and group 2 (EG2: two- dimensions difficulty manipu lation). All protocol sessions were conducted at the same time -of-day, in which, there were three periods: familiarization, acquisition and retention phases. Moreover, two stress- conditions of darts throw were investigated (i.e.: free condition (FC) and ti me pressure condition (TPC)). Results showed significant effect between - groups (p = 0.01, η2 = 0.215) based on difficulty strategies manipulation. Analysis showed an improvement in accuracy values in retention tests for only EG1and a significant l ower coefficient of variation (p = 0.41, η2 = 0.154) compared to the CTG and EG2. Errors decrease over time for CTG in FC (p = 0.041, η2= 0.203) but not in TPC, while no significant differences in errors for EG1 and EG2 (p = 0.19, η2 = 0.911) in the two st ress -conditions. Moreover, PD was significantly different between all test - phases (p = 0.041, η2 = 0.234) for EG1 only. The one -dimension learning strategy improves retention in accuracy performances, whereas, both strategies, do not affect errors in both FC and TPC . Therefore, teachers in physical education are not encouraged to combine difficulties in learning process of a novel fine motor coordination task.

4

An Assessment of Reaction Time Development in Females Using Polynomial Regression Analysis

100%

Jaworski J., Kosiba G., Madejski E.

Human Movement

|

2014

|

vol. 15

|

issue 2

80-85

EN

Purpose. The objective of this study was to determine the level and rate of change of reaction time during the developmental period from early childhood to early adulthood. Polynomial regression analysis was applied to determine the age at which the best reaction time results are achieved. Methods. The study involved 550 females between the ages of 7 and 20 years. Participants completed a computer test measuring simple reaction times to visual and auditory stimuli and choice reaction time during the ontogenetic developmental period. Results. Analysis of the results for age group distinguished two sub-periods of reaction time dynamics: a progressive increase throughout the developmental period followed by a plateau phase. This was evident for all reaction time measures (simple and choice) particularly in the case of that data collected empirically. Conclusions. best reaction times to visual and auditory stimuli were approximately at the age of 17 years. In turn, quickest choice reaction time was approximately one year earlier in life. The most dynamic increase in the results of both simple reaction times was between the age of 7 and 8 years, whereas for choice reaction time this was between 10 and 11 years of age.

5

Improvement of Student Physical State and Coordination of Movements by Means of Alish Belt Wrestling

88%

Voloshin O., Kolenkov O.

Central European Journal of Sport Sciences and Medicine

|

2019

|

vol. 26

|

issue 2

47-56

EN

The paper presents data on the improvement of motion coordination in students by means of Alish belt wrestling in the process of physical education and their impact on physical development level. The program of student physical development and physical fitness enhancement by means of motion coordination improvement in the process of taking belt wrestling course and further ways of their development has been elaborated. The problem importance and the necessity of further elaborating the methods of student preparation by means of belt wrestling have been substantiated. The problems associated with elaboration of scientifically substantiated system of belt wrestlers’ preparation that will permit to increase the reserve capacities of student motor system and improve the quality of motion control have been set up.

6

Effect of Fatigue Upon Performance and Electromyographic Activity in 6-RM Bench Press

88%

Tillaar R. v. d., Saeterbakken A.

Journal of Human Kinetics

|

2014

|

vol. 40

|

issue 1

57-65

EN

The aim of this study was to examine the effect of fatigue during one set of 6-RM bench pressing upon the muscle patterning and performance. Fourteen resistance-trained males (age 22.5±2.0 years, stature 1.82±0.07 m, body mass 82.0±7.8 kg) conducted a 6-RM bench press protocol. Barbell kinematics and EMG activity of pectoralis major, deltoid anterior, biceps brachii, triceps brachii, rectus abdominis, oblique external and erector spinae were measured in each repetition during the 6-RM bench press. Total lifting time increased and the velocity in the ascending movement decreased (p≤0.001). However, the kinematics in the descending phase deferred: the time decreased and velocity increased during the 6-RM (p≤0.001). Generally, muscles increased their EMG amplitude during the six repetitions in the ascending movement, while only three of the seven measured muscles showed an increase over the six repetitions in the descending part in 6-RM bench pressing. It was concluded that the bench pressing performance decreased (lower barbell velocities and longer lifting times) with increasing fatigue in the 6-RM execution. Furthermore EMG increased in the prime movers and the trunk stabilizers (abdominal and spine), while the antagonist muscle (biceps) activity was not affected by fatigue during the lifting phase in a single set of 6-RM bench pressing

7

Rehabilitation in lower extremity fractures treated with intramedullary nailing

63%

Brudnicki J., Kubicz-Chachurska M.

Medical Rehabilitation

|

2011

|

vol. 15(2)

21-27

PL

Artykuł przedstawia model postępowania rehabilitacyjnego u pacjentów ze złamaniami kończyn dolnych leczonych metodą gwoździowania śródszpikowego, stosowany w Klinice Ortopedii i Traumatologii Narządu Ruchu Collegium Medicum UJ. Gwoździowanie śródszpikowe jest jedną z podstawowych metod zespoleń kostnych. Jej ewolucja spowodowała znaczne rozszerzenie wskazań do jej stosowania, zwłaszcza w kończynie dolnej. Bez względu na metodę leczenia, kaŜde złamanie ma pewne konsekwencje dla pacjenta związane z towarzyszącym urazem tkanek miękkich czy zmianą chodu w wyniku ograniczeń obciążania kończyny. Obok ogólnych założeń stosowania zespoleń śródszpikowych w obrębie kończyny dolnej, w niniejszej pracy przedstawiono metody rehabilitacji pacjentów po zespoleniach śródszpikowych złamań kończyn dolnych. Omówiono istotne założenia rehabilitacji po zespoleniach śródszpikowych złamań bliższego końca kości udowej oraz złamań trzonu uda i piszczeli ze szczególnym uwzględnieniem podejmowania decyzji odnośnie obciążania kończyny. Szczególny nacisk połoŜono na znaczenie w postępowaniu usprawniającym ćwiczeń poprawiających koordynację ruchową. Programy rehabilitacji indywidualnie dobrane w oparciu o przedstawione założenia i obserwacje kliniczne są niezbędnym uzupełnieniem procedur operacyjnych i prowadzą do wyników leczenia satysfakcjonujących tak pacjentów jak i zespół lekarzy i fizjoterapeutów.

EN

This paper presents a model of rehabilitation of patients with lower extremities’ fractures treated with intramedullary nailing in the Orthopaedics and Traumatology of the Motion System Clinic of Collegium Medicum UJ. Intramedullary nailing is one of the main methods of fracture fixation. The evolution of this method has caused an increased number of indications for its application especially in the lower extremity. Regardless of the method of fracture fixation, every fracture has some important consequences for a patient as a result of the accompanying soft tissues injuries, gait due to weight bearing limitations etc. A general consideration of intramedullary nailing is presented in this paper as well as the methods of rehabilitation which are in use in patients after fixation of lower extremity fractures with intramedullary nails. The important points of rehabilitation after intramedullary nailing of proximal femur fractures, femoral shaft and tibial shaft fractures, which are a standard indications for a fixation with intramedullary nails, were discussed, especially the problem of the decision making concerning weight bearing. Special emphasis was placed on the importance of exercises improving motional coordination. Individual programs of rehabilitation designed on the base of the presented assumptions and clinical observations have led to final outcomes satisfying both patients and the team of surgeons and physiotherapists.

Refine search results

Selected Coordination Motor Abilities in Elite Wrestlers and Taekwon-Do Competitors

Participation in Computer Games Vs. Coordination Motor Abilities and Body Composition in Boys From Rural Areas of Poland

Effect of difficulty manipulation strategies on acquisition, retention and associated perceptions in fine motor coordination task learning in young school boys

An Assessment of Reaction Time Development in Females Using Polynomial Regression Analysis

Improvement of Student Physical State and Coordination of Movements by Means of Alish Belt Wrestling

Effect of Fatigue Upon Performance and Electromyographic Activity in 6-RM Bench Press

Rehabilitation in lower extremity fractures treated with intramedullary nailing