Wyniki wyszukiwania - Biblioteka Nauki

1

Balance evaluation after Russian current on the femoral rectus of healthy individuals118-122

100%

Carina Casiraghi Czarnobaj C. C. , Hellen Cristina Folarosso H. C. , Maria Gabriela Picagevicz M. G. , Natália de Lima N. , Gustavo Kiyosen Nakayama G. K. , Gladson Ricardo Flor Bertolini G. R. F.

European Journal of Clinical and Experimental Medicine

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2019

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nr 2

118-122

EN

Introduction. A technique used in physiotherapy, but still underinvestigated, is the use of the Russian current as an aid in the improvement of balance. Aim. To verify the influence of the Russian current applied to the rectus femoris on balance in healthy and sedentary individuals. Material and methods. A cross-sectional clinical trial was performed at the Universidade Estadual do Oeste do Paraná – Unioeste, in the city of Cascavel – PR. The sample consisted of 20 healthy female subjects aged between 18 and 25 years, equally divided into two groups where group 1 was placebo and group 2 treatment. Initially, the proprioceptive evaluation was performed by means of a functional test (the Star Excursion Balance Test (SEBT)) and stabilometry using a baropodometer. Russian current was then applied to the femoral rectum of both limbs simultaneously for 2 weeks, 5 days a week. Results. No significant differences were found analyzing the variables, but the elevated effect size points to clinical relevance of Russian Current in functional assessment. Conclusion. The use of the Russian current in the rectus femoris did not present significant alteration on balance.

2

Proprioceptive Ability of Fencing and Table Tennis Practioners

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Bańkosz Z. , Szumielewicz P.

Human Movement

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2014

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tom 15

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nr 3

128-133

EN

Purpose. The aim of the study was to compare the spatial component of proprioceptive ability by reproducing a upper limb movement typical in table tennis and fencing. Methods. The research comprised 41 young males of which 12 were table tennis players, 14 fencers, and 15 not involved in any competitive sports as a control. The experiment was based on assessing the precision of pronation and supination of the forearm at the elbow joint in recreating a set movement range by use of a goniometer. Results and conclusions. The results point to a higher level of proprioceptive ability in fencers and table tennis players than the control group but only in respect to the tasks executed with the dominant limb. This is inferred to be the result from the specific character of both sports (i.e. the intensive use of one limb and the consequent laterality of that limb) causing higher sensitivity and proprioception. This may provide a link between swordplay, table tennis, and the level of proprioception. The research methodology used herein may be useful in monitoring fencing training. Although not unequivocally statistically significant, the results indicate the potential for further research in this area.

3

Accuracy of Replicating Static Torque and its Effect on Shooting Accuracy in Young Basketball Players

100%

Struzik A. , Rokita A. , Pietraszewski B. , Popowczak M.

Human Movement

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2014

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tom 15

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nr 4

216-220

EN

Purpose. Accurate shooting in basketball is a prerequisite for success. Coordination ability, one of the abilities that determine the repeatability of accurate shooting, is based on kinesthetic differentiation. The aim of the study was to evaluate the strength component of kinesthetic differentiation ability and determine its relationship with shooting accuracy. Methods. Peak muscle torque of the elbow extensors under static conditions was measured in 12 young basketball players. Participants then reproduced the same movement at a perceived magnitude of 25%, 50%, and 75% of static peak torque, with error scores calculated as a measure of kinesthetic differentiation. The results were compared with players’ field goal percentages calculated during game play in a regional championship. Results. No statistically significant relationships were found between the level of kinesthetic differentiation ability and field goal percentage. Additionally, no upper limb asymmetry was found in the sample. Conclusions. The relatively high levels of elbow static peak torque suggest the importance of upper limb strength in contemporary basketball. The lack of a statistically significant difference between the right and left limbs decreases the risk of suffering injury. It is likely that choosing other suitable tests would demonstrate the relationships between field goal percentage and kinesthetic differentiation ability.

4

Acute Effects of Whole Body Vibration on Shoulder Muscular Strength and Joint Position Sense

100%

Hong J. , Velez M. , Moland A. , Sullivan J.

Journal of Human Kinetics

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2010

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tom 25

17-25

EN

Functional changes following whole body vibration (WBV) training have been attributed to adaptations in the neuromuscular system. However, these changes have mainly been observed in the lower extremity with minimal change to the upper extremity. The purpose of the study is to examine the acute effect of shoulder vibration on joint position sense and selected muscle performance characteristics (peak torque, time to peak torque, and power). Forty young individuals (19.84 ± 1.73 yrs, 171.41 ± 7.73 cm, 70.07 ± 9.32 kg) with no history of upper body injuries were randomly assigned to an experimental (Vibration) or control (No-Vibration) group. To assess shoulder proprioception, active and passive joint position senses were measured on both internal and external rotation of the shoulder. The muscle performance variables (peak torque and time to peak torque) were measured using isokinetic dynamometer with the velocity of 60°/sec. After three bouts of 1 minute vibration training, the experimental group demonstrated a significant improvement in the internal rotation peak torque, time to peak torque and external rotation time to peak torque (p<0.05). However, no-significant differences were revealed for joint position sense, external rotation peak torque, and time to peak torque between the groups. Our findings suggest that short bouts of vibration treatment have a significant effect on shoulder muscle characteristics.

5

Sex-Dependent Individual Differences and the Correlational Relationship Between Proprioceptive and Verbal Tests

100%

Liutsko L.

Polish Journal of Sport and Tourism

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2015

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tom 21

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nr 3

143-146

EN

Introduction. The aim of the study was to analyze the relationship between proprioceptive and verbal tests on personality in both sexes separately due to existing proprioceptive differences in fine motor behavior between men and women in our previous studies [1, 2, 3]. Material and methods. 114 middle-aged participants from Belarus completed verbal tests (personality: Eysenck's EPQ, Big Five in Hromov's Russian adaptation, and Rosenberg's Self-esteem) together with Proprioceptive Diagnostics of Temperament and Character (by Tous). Complementary information, such as tests of time perception, was collected and used in correlative and ANOVA analyses with the use of SPSS v.19. Results. The relationship between proprioceptive variables in personality and individual differences, time perception and the results of verbal tests were determined for each sex subgroup and discussed. ANOVA results reflected the corresponding differences and similarities between men and women in the variables of each test. Time perception was found to be significantly correlated to all five dimensions of the Big Five Test in both sexes, and both had a significant relationship to the same variables of the DP-TC test. Conclusions. Time perception can be used as an indirect indicator of personality. Existing individual and personality differences should be taken into account in coaching and education to obtain more effective results.

6

Repeatability of Pressure Force During Elbow Flexion and Extension Before and After Exercise

100%

Zatoń M. , Błacha R. , Jastrzębska A. , Słonina K.

Human Movement

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2009

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tom 10

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nr 2

137-143

EN

Purpose. In most circumstances it is possible to provide the precise estimation of force and weight by means of kinesthetic differentiation. In some conditions, like physical effort or fatigue, kinesthetic differentiation can become reduced. The kinesthetic differentiation capacity can be expressed as repeatability of muscular contraction force or movement. The present study investigates the direction of changes in kinesthetic differentiation of force applied by both arms during elbow flexion and extension before and after exercise. Basic procedures. The study sample consisted of 23 cyclists (mean ± SD) aged 18.1 ± 1.8 years, 17 rowers aged 18.1 ± 1.8 years, and a control group consisting of 32 subjects aged 21.3 ± 1.3 years. All subjects performed a progressive exercise test. Kinesthetic differentiation was measured as the repeatability of force applied during elbow flexion and extension. Main findings. The results obtained confirm that kinesthetic differentiation in both arms after exercise improved by means of elbow extension. Further research can contribute to the development of ways of control of adaptation changes in the central nervous system and the locomotor system on a general level, since the studies so far have described either local changes, e.g. EMG, or provided specific data related to typical patterns of activity in a given sport. Conclusions. The proposed method allows identification of effects of intense exercise on the kinesthetic differentiation capacity on a more general level.

7

Effect of Kinesiotape Applications on Ball Velocity and Accuracy in Amateur Soccer and Handball

88%

Müller C. , Brandes M.

Journal of Human Kinetics

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2015

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tom 49

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nr 1

119-129

EN

Evidence supporting performance enhancing effects of kinesiotape in sports is missing. The aims of this study were to evaluate effects of kinesiotape applications with regard to shooting and throwing performance in 26 amateur soccer and 32 handball players, and to further investigate if these effects were influenced by the players’ level of performance. Ball speed as the primary outcome and accuracy of soccer kicks and handball throws were analyzed with and without kinesiotape by means of radar units and video recordings. The application of kinesiotapes significantly increased ball speed in soccer by 1.4 km/h (p=0.047) and accuracy with a lesser distance from the target by -6.9 cm (p=0.039). Ball velocity in handball throws also significantly increased by 1.2 km/h (p=0.013), while accuracy was deteriorated with a greater distance from the target by 3.4 cm (p=0.005). Larger effects with respect to ball speed were found in players with a lower performance level in kicking (1.7 km/h, p=0.028) and throwing (1.8 km/h, p=0.001) compared with higher level soccer and handball players (1.2 km/h, p=0.346 and 0.5 km/h, p=0.511, respectively). In conclusion, the applications of kinesiotape used in this study might have beneficial effects on performance in amateur soccer, but the gain in ball speed in handball is counteracted by a significant deterioration of accuracy. Subgroup analyses indicate that kinesiotape may yield larger effects on ball velocity in athletes with lower kicking and throwing skills.

8

Gender Differences in Postural Stability Among Children

88%

Smith A. , Ulmer F. , Wong D.

Journal of Human Kinetics

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2012

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tom 33

25-32

EN

This study aimed to examine the gender differences in postural stability among 8-12 year-old children. Twenty-six children participated in this repeated measures study to measure the centre of pressure (COP) under one normal condition (CONTROL: hard surface, eyes open, and looking straight ahead) and two challenging sensory conditions (ECHB: eyes closed and head back; and EOCS: eyes open and compliant surface) in randomized order. Girls had significantly lower COP path velocity (COP-PV, p < 0.05, medium effect), smaller radial displacement (COP-RD, p < 0.05, medium effect), and lower area velocity (COP-AV, p < 0.05, medium effect) as compared to boys when the three conditions were pooled. Gender differences were found in the percentage changes in COP-RD during ECHB (p < 0.05, large effect) and EOCS (p < 0.05, medium effect), and in COP-AV during both ECHB and EOCS conditions (p < 0.05, medium effect). Postural stability performance of girls had higher correlations with age (-0.62 vs. -0.40), body mass (-0.60 vs. -0.42), foot length (-0.68 vs. -0.45), and physical activity level (-0.45 vs. 0.02), as compared to boys. Girls had better postural stability than boys but were more affected by altered sensory input information. Girls are more capable of integrating their sensory inputs, whereas boys treat each sensory input somewhat separately and rely more on somatosensory feedback. Exercises such as standing on unstable surfaces with eyes open instead of eye closed and head back are more beneficial to children's postural stability control system.

9

The impact of the position of the head on the functioning of the human body: a systematic review

75%

Szczygieł E. , Fudacz N. , Golec J. , Golec E.

International Journal of Occupational Medicine and Environmental Health

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2020

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tom 33

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nr 5

559-568

EN

The head is an important element of the biokinetic chain. Under physiological conditions, it should extend along the midline of the body. Due to its location and the fact that it constitutes approx. 6% of the total body weight, many authors believe it has a significant impact on its functioning. The aim of this study was to conduct a systematic literature search and to synthesize the evidence of the impact of the head posture on the functioning of the human body. A systematic review was conducted within 3 databases: PubMed, Medline OVID, and EBSCO, using the following terms: “forward head,” “posture,” “position,” and “neck.” For the analysis, scientific articles published after 2013 were selected. A total of 16 studies matched the inclusion criteria of this systematic review. Their results have proven that the position of the head has a significant effect on the human body. Research findings show that abnormal head position changes affect muscle activity, proprioception, the pattern of breathing and neck pain. This is the first systematic review of the relationship between the head posture, and the functioning of the human body. The results of this study seem to be promising if used in therapeutic practice.

10

Cervico-ocular reflex upregulation in dizzy patients with asymmetric neck pathology

75%

Zamysłowska-Szmytke E. , Adamczewski T. , Ziąber J. , Majak J. , Kujawa J. , Śliwińska-Kowalska M.

International Journal of Occupational Medicine and Environmental Health

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2019

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tom 32

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nr 5

723-733

EN

Objectives The aim of this study was to investigate whether the restriction in neck rotation and increased neck muscle tension could be causally related to vertigo and dizziness. Material and Methods Seventy-one patients reporting vertigo and/or imbalance were divided into 2 groups: 45 subjects with unilateral restriction (R+) and 26 without restriction (R–) of cervical rotation and muscle tension in the clinical flexion-rotation test. The normal caloric test was the inclusion criterion. The control group comprised 36 healthy volunteers with no history of vertigo. The vestibulo-ocular reflex (VOR) and the cervico-occular reflex (COR) were measured through the videonystagmography (VNG) sinusoidal pendular kinetic test in the conditions of not inactivated head and immobilized head, respectively. The VNG-head torsion test (VNG-HTT) nystagmus was recorded. Results Among the reported complaints, neck stiffness, headaches and blurred vision were more frequent in the R+ group than in both the R– group and the control group. VNG revealed an increased COR gain and the presence of VNG-HTT nystagmus in the R+ group only. Similarly, only in the R+ group a positive relationship between COR and VOR was observed. Conclusions Patients with asymmetric restriction in neck rotation and increased neck muscle tension reveal the tendency to have an increased response of the vestibular system, along with co-existing COR upregulation. Further research is needed to investigate the relationships between the activation of cervical mechanoreceptors and dizziness pathomechanisms. Int J Occup Med Environ Health. 2019;32(5):723–33

11

Influence of exercises in an open and a closed kinematic chain on proprioception of an elbow joint

75%

Wyszyński S. , Stiler S.

Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna

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2018

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tom Vol. 24, nr 2

80--89

EN

The presented study aimed to assess the influence of exercises in an open and a closed kinematic chain on the level of proprioception of an elbow joint. Examination was carried out on 25 patients, aged 19-30. Proprioception at 30, 60, 90 and 120 degrees of elbow flexion was measured for each patient. The exercises were performed within 2 weeks. Results shown that in the left limb there were statistically significant differences after application of exercises in open kinematic chains in position of 60 degrees of elbow flexion (p≤0,02) and after exercises in closed kinematic chains in 90 degrees of elbow flexion (p≤0,01). In the right limb, statistically significant differences after exercises in open kinematic chains (30, 60, 90 degrees) and in position of 120-degree flexion in closed kinematic chain, were observed. If there is a desire to improve proprioception above 90 degrees of elbow flexure, it is recommended to apply exercises in the closed kinematic chain.

PL

Celem pracy była ocena wpływu ćwiczeń w otwartym i zamkniętym łańcuchu kinematycznym na poziom propriocepcji stawu łokciowego. Badanie przeprowadzono na 25 pacjentach w wieku 19-30 lat. Oceniano propriocepcję przy 30, 60, 90 i 120 stopniach zgięcia łokcia. Następnie przez 2 tygodnie prowadzono ćwiczenia. W lewej kończynie stwierdzono istotne statystycznie różnice po ćwiczeniach w otwartych łańcuchach kinematycznych w pozycji zgięcia pod kątem 60 stopni (p≤0,02) i po ćwiczeniach w zamkniętych łańcuchach kinematycznych w 90 stopniach zgięcia łokcia (p≤0,01). W prawej kończynie zaobserwowano statystycznie istotne różnice po ćwiczeniach w otwartych łańcuchach kinematycznych (30, 60, 90 stopni) oraz w pozycji zgięcia 120 stopni w zamkniętym łańcuchu kinematycznym. Jeśli istnieje potrzeba poprawy propriocepcji powyżej 90 stopni zgięcia łokcia, warto korzystać z ćwiczeń w zamkniętym łańcuchu w ramach terapii.

12

Postural Adaptations in Preadolescent Karate Athletes Due to a One Week Karate Training Camp

75%

Vando S. , Filingeri D. , Maurino L. , Chaabène H. , Bianco A. , Salernitano G. , Foti C. , Padulo J.

Journal of Human Kinetics

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2013

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tom 38

45-52

EN

The aim of this study was to investigate the effect of an increasing number of training hours of specific highintensity karate training on postural sway in preadolescent karate athletes. Seventy-four karatekas were randomly assigned to 1 of 2 groups: Karate Group (KG=37): age 10.29±1.68 yrs; or Control Group (CG= 37): age 10.06±1.77 yrs. The KG performed two sessions per day for 1 week in total, while the CG performed only 3 sessions during the same period. The center-of-pressure length (COPL) and velocity (COPV) were recorded under four different experimental conditions: open eyes (EO), closed eyes (EC), open eyes monopodalic left (EOL), open eyes monopodalic right (EOR), pre as well as post training intervention. Post-camp results indicated significant differences between the groups in the COPL p<0.001; an interaction of training type×time in the COPV (p<0.001) and an interaction of training type×time (p=0.020). The KG revealed an improvement in the COPL from pre to post-camp under conditions of EO [-37.26% (p<0.001)], EC [-31.72% (p<0.001)], EOL [-27.27% (p<0.001)], EOR [-21.44% (p<0.001)], while CG revealed small adaptations in conditions of EO (3.16%), EC (0.93%), EOL (-3.03%), EOR (-0.97%). Furthermore, in the KG an improvement in the COPV from pre to post-camp was observed in conditions of EO [-37.92% (p<0.001)], EC [-32.52% (p<0.001)], EOL [-29.11% (p<0.001)], EOR [-21.49% (p<0.001)]. In summary, one-week of high intensity karate training induced a significant improvement in static body balance in preadolescent karate athletes. Karate performance requires high-levels of both static and dynamic balance. Further research dealing with the effect of karate practice on dynamic body balance in young athletes is required.

13

Ocena skuteczności szkolenia w żeglarstwie rekreacyjno-turystycznym oraz jego wpływ na powtarzalność generowanej siły w kończynach górnych

63%

Błacha R. , Piwowarczyk P.

Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu

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2015

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tom 51

92-105

EN

Background. Yachting requires specialist knowledge and the skills that guarantee safety while sailing in all weather conditions. Therefore it is essential to measure the effectiveness of training – in view of the limited number of hours available – in order to improve the teaching process. The main aim of the paper was to analyze the effectiveness of the teaching methods applied in sail training and to assess the changes occurred in the subjects’ ability to control their movements due to the training. Material and methods. The sample consisted of the first-year students (men and women) of the University School of Physical Education who took part in a sailing course in Olejnica. In the 30-hour specialist part of the training, the subjects learned to sail two sloop-type sailboats. The amount of the training time for each crew on a given training vessel was the same, and both crews were trained by experienced sailing instructors. Each student was supposed to master basic sailing maneuvers in 30 hours of training within 5 days. Before and after the experiment, the subjects were examined on a kinesthesiometer that registered the repeatability of the generated force in the upper limbs. These results were used to assess the effect of sailing on movement control in terms of the numerical assessment of kinesthetic differentiation ability on the basis of the generated power repeatability. Results. A 35-hour (5h theoretical part + 30h practical) sail training carried out in the traditional way – with an instructor on board the yacht – enables beginners to acquire basic yacht maneuvering techniques. The analysis proved that 35-hour sailing course does not significantly affect the repeatability of the generated power in the upper limbs. Conclusions. In the next phase of the research, the importance of a sailing instructor should be assessed in the process of teaching techniques of maneuvering on training yachts, such as Omega-class yachts or cabin yachts, equipped with electronic devices (GPS, chip log, anemometer) which enable precise collection of information on performed maneuvers.

14

The influence of functional shortening of hamstring muscles and rectus femoris muscle on proprioception of knee joint in patients after ACL rupture

63%

Szlęzak M. , Likus W. , Matuszny B. , Krupa M. , Ficek K.

Annales Academiae Medicae Silesiensis

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2018

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nr 72

95-100

EN

INTRODUCTION: The aim of this study is to demonstrate the relationship between functional shortening of the rectus femoris muscle, hamstring muscle and knee proprioception in patients after anterior cruciate ligament [ACL] rupture. MATERIAL AND METHODS: A group of 35 men with ACL rupture (without ACL reconstruction), aged 18 to 43 years (28 ± 7.4 years) was enrolled in the study. Firstly, the functional shortening of above mentioned muscles was evaluated in both healthy and injured lower limbs. Knee joint proprioception was assessed using a BTE Primus RS by examining the angular deviation from the center of the kinetic range in the knee joint with and without visual inspection. RESULTS: A statistically significant positive correlation was found between the functional shortening of the hamstrings and the proprioception of the flexion motion assessed under conditions without visual inspection. In addition, a statistically significant negative correlation was found between the functional shortening of the rectus femoris muscle of the injured lower limb and proprioception of the knee flexion movement assessed under conditions without visual inspection. CONCLUSIONS: A deficit of knee proprioception correlates with the functional shortening of the thigh muscles. Pa-tients with functional shortening of the rectus femoris have better knee proprioception. Patients with functional shortening of hamstrings have worse knee proprioception.

PL

WSTĘP: Celem badania jest wykazanie związku między skróceniem czynnościowym mięśnia prostego uda i mięśni kulszowo-goleniowych a kinestezją stawu kolanowego u pacjentów po zerwaniu więzadła krzyżowego przedniego [ACL]. MATERIAŁ I METODY: Badaniem objęto grupę 35 mężczyzn z zerwaniem ACL (bez rekonstrukcji) w wieku od 18 do 43 lat (28 ± 7,4 roku). Funkcjonalne skrócenie wyżej wymienionych mięśni oceniano zarówno na zdrowej, jak i kontuzjowanej nodze. Kinestezję stawu kolanowego oceniano za pomocą aparatu BTE Primus RS, badając odchylenie kątowe od środka zakresu ruchu w stawie kolanowym z i bez kontroli wzroku. WYNIKI: Stwierdzono statystycznie istotną dodatnią korelację między funkcjonalnym skróceniem mięśni kulszowo- -goleniowych a kinestezją dla ruchu zgięcia ocenianego w warunkach bez kontroli wzroku. Ponadto stwierdzono istotną statystycznie ujemną korelację między funkcjonalnym skróceniem mięśnia prostego uda nogi uszkodzonej a kinestezją ruchu zgięcia kolana ocenianego w warunkach bez kontroli wzroku. WNIOSKI: Deficyt propriocepcji kolana koreluje z funkcjonalnym skróceniem mięśni uda. Pacjenci z funkcjonalnym skróceniem mięśnia prostego uda mają lepszą kinestezję stawu kolanowego, natomiast u pacjentów z funkcjonalnym skróceniem ścięgien podkolanowych stwierdzono gorszą kinestezję stawu kolanowego.

15

The impact of fatigue on static balance in people with chronic ankle instability

63%

Kowalczyk M. , Truszczyńska-Baszak A.

Acta of Bioengineering and Biomechanics

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2023

|

tom Vol. 25, no. 1

151--160

EN

: The aim of the study was to assess static postural stability under fatigue in subjects with chronic ankle instability – “copers” in comparison with healthy controls. Methods: We conducted a prospective study on a group of 60 young, physically active subjects, divided into 3 groups: I – 14 subjects with unilateral ankle instability, II – 15 subjects with bilateral ankle instability, III – 31 healthy subjects, without ankle instability. The fatigue trial was based on modified Short-Term Fatigue Protocol. Static stabilography was performed with the use of HUR platform. Results: showed an increase in the value of COP trace length after fatigue test in study population I. The level of COP trace length Z before fatigue was significantly lower than after fatigue. Subjects from study population I had higher levels of COP trace length Z in comparison with the control group. The main effect for the group also proved to be significant. Study population I had higher levels of COP trace length Z in comparison with the control group. For the measurement after fatigue, there was significant difference only between the study population I and the control group. Conclusions: The incidence of structural ankle instability was not correlated with functional instability. Subjects with ankle instability, or “copers”, had good functional levels, enabling them to perform sports activities. “Copers” had weakened proprioception in static stabilography tests. Short and intense fatigue protocol weakened the ability to maintain balance in static stabilography test with eyes closed.

16

The influence of high- and low-heeled shoes on balance in young women

63%

Mika A. , Oleksy Ł. , Kielnar R. , Świerczek M.

Acta of Bioengineering and Biomechanics

|

2016

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tom Vol. 18, no. 3

97--103

EN

Purpose: To evaluate the influence of two different heel heights on static balance and on limits of stability during functional reach test, with both the eyes open and eyes closed, in young women (age 22–27) who did not wear heeled shoes habitually. Methods: Thirtyone young women (age 22–27) performed balance tests on a stabilometric platform without footwear and in shoes with 4 cm and 10 cm heels. The center of pressure (COP) deviations range and velocity in anteroposterior (AP) and mediolateral (ML) directions were assessed. The limits of stability were measured when the subject leaned the body in sagittal plane. Results: The ranges of COP deviations in AP and ML directions were already significantly higher in 4 cm heels in comparison to the barefoot condition. COP deviation velocity significantly raised with increasing heel height as well as when the eyes were closed. Conclusions: A more pronounced increase of COP deviation velocity than COP deviation range when measurement conditions become more difficult may indicate that young women anticipate postural corrections by stimulation of ankle proprioception when heeled shoes are worn. High-heeled shoes may lead to alterations in velocity feedback balance mechanism, which may increase the risk of musculoskeletal injuries. Observed in our study adverse effect of heeled footwear on balance may predispose women to falls and injuries. Permanent use of stiletto high heels should be avoided by women.

17

Zmniejszenie absencji w środowisku pracy przez innowacyjne metody profilaktyki upadków u pracowników dojrzałych

63%

Chudak B. , Permoda A.

Zeszyty Naukowe Uczelni Vistula

|

2016

|

nr 46(1) Ekonomia X. Pracownicy wiedzy 65 plus - nowe szanse (czy kontrowersje) wobec wyzwań współczesności

182-193

PL

Fakt, że żyjemy coraz dłużej nie powinien kojarzyć się z obowiązkową niesprawnością, ograniczającą tak potrzebną człowiekowi aktywność ruchową. Jednak sprawność funkcjonalna organizmu ludzkiego uwarunkowana jest niezależnym od niego systemem nadzoru i kontroli Ośrodkowego Układu Nerwowego (OUN) czerpiącego informacje do najwłaściwszego zarządzania z bardzo licznych receptorów rozsianych po całym organizmie. Niewątpliwie szczególnie w procesie starzenia się zdecydowaną rolę w utrzymaniu sprawności ruchowej odgrywają proprioreceptory. Zmniejszająca się wraz z wiekiem sprawność tych struktur jest odpowiedzialna także za zwiększającą się u osób w grupie wiekowej 50 plus liczbę upadków. Konsekwencje upadków w starszym wieku to także problem pracodawców, którzy zobligowani są ponosić tego koszty szczególnie wtedy, gdy pracownik jest ważny w systemie organizacji danego przedsiębiorstwa. Autorzy proponują zmianę istniejącego status quo wykorzystując innowacyjną, dobrze sprawdzoną i potwierdzoną naukowo metodę treningu propriocepcji z wykorzystaniem urządzenia Delos Professional System zaproponowany przez Międzynarodowe Stowarzyszenie Propriocepcji i Postawy.

EN

The fact that we live longer and longer should not be associated with the necessary disability reducing the so necessary for the human being motor activity. However, the functional efficiency of the human organism is determined by the independent from him system of supervision and control of the central nervous system (CNS) drawing information for the purpose of the most appropriate management from very numerous receptors scattered across the whole organism. No doubt, particularly in the process of ageing, the decisive role in retention of motor efficacy is played by proprioceptors. The declining with age efficiency of these structures is also responsible for an increasing number of falls in case of the 50+ age group. Consequences of falls in case of elderly people are also the problem for employers who are obliged to incur costs thereof, especially when the employee is important in the system of organisation of a given enterprise. The authors suggest change of the existing status quo making use of the innovative, well proved and scientifically confirmed method of training of proprioception with the use of the tool of Delos Professional System proposed by the International Society of Proprioception and Posture.

18

Symmetry of proprioceptive sense in female soccer players

63%

Iwańska D. , Karczewska M. , Madej A. , Urbanik C.

Acta of Bioengineering and Biomechanics

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2015

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tom Vol. 17, no. 2

155--163

EN

Purpose: The purpose of the study was to assess the symmetry of proprioceptive sense among female soccer players when trying to reproduce isometric knee extensions (right and left) and to analyze the impact of a given level of muscle force on proprioception. Methods: The study involved 12 soccer players aged 19.5 ± 2.65 years. Soccer players performed a control measurement of a maximum 3s (knee at the 90°) position in the joint. Subsequently, 70%, 50%, and 30% of the maximum voluntary contraction (MVC) were all calculated and then reproduced by each subject with feedback. Next, the players reproduced the predefined muscle contraction values in three sequences: A – 50%, 70%, 30%; B – 50%, 30%, 70%; C – 70%, 30%, 50% of MVC without visual control. Results: In every sequence, the participants found obtaining the value of 30% of MVC the most difficult. The value they reproduced most accurately was 70% of MVC. Both trial II and trial III demonstrated that the symmetry index SI significantly differed from values considered acceptable (SIRa). In each successive sequence the largest asymmetry occurred while reproducing the lowest values of MVC (30%) (p < 0.05). Conclusion: High level of prioprioceptive sense is important to soccer players due to the extensive overload associated with dynamics stops or changes in direction while running. Special attention should be paid to develop skills in sensing force of varying levels. It was much harder to reproduce the predefined values if there was no feedback.

19

Projekt urządzeń do rehabilitacji osób z zaburzeniami propriocepcji

63%

Tejszerska D. , Tyrała M. , Wolański W. , Gieremek K. , Sroczyński P.

Aktualne Problemy Biomechaniki

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2010

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tom z. 4

263--268

PL

W pracy przedstawiono projekt urządzeń do reedukacji osób z zaburzeniami propriocepcji. Prace projektowe zostały wykonane w programie Inventor 2009. Z uwagi na znaczenie takich urządzeń w rehabilitacji, ich konstrukcje cechują się wielofunkcyjnością. Dla zapewnienia bezpieczeństwa użytkowników została przeprowadzona analiza wytrzymałościowa elementów składowych najbardziej narażonych na uszkodzenie w programie Ansys Workbench. Otrzymane wyniki z obliczeń potwierdziły poprawność przyjętych założeń projektowych i dobranych parametrów konstrukcyjnych urządzeń.

EN

The project of rehabilitation devices for people with the proprioceptive disorder was presented in this paper. Development of the multifunctional devices was made using Inventor 2009. Usefulness of the devices construction was found on the base of strength analysis using Ansys Workbench. Obtained results testified correct choice of project assumption data.

20

Sources of afferent fibers from the tongue muscles

63%

Wozniak W. , Bruska M.

Folia Morphologica

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1996

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tom 55

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nr 3