Wyniki wyszukiwania - Biblioteka Nauki

1

Using the discrete wavelet transform in assessing the effectiveness of rehabilitation in patients after ACL reconstruction

100%

Czaplicki A. , Kuniszyk-Jóźkowiak W. , Jaszczuk J. , Jarocka M. , Walawski J.

Acta of Bioengineering and Biomechanics

|

2017

|

tom Vol. 19, no. 3

139--146

EN

Purpose: The purpose of the current study was to assess the effectiveness of rehabilitation in patients after anterior cruciate ligament reconstruction (ACLR) using a wavelet analysis of the torque-time curve patterns of the extensors of the affected knee. The analysis aimed at the quantitative evaluation of irregularities in these torque-time patterns. Methods: The study involved a group of 22 men who had had ACL reconstruction. The torque-time characteristics were recorded 3, 6 and 12 months after the surgery by an isokinetic dynamometer. They were then examined using the orthogonal Daubechies 4 (Db 4) and biorthogonal Bior 3.1 wavelets. Results: A statistical analysis of the results revealed significant differences in values of the high-frequency energy stored in the details of the signal from the dynamometer between the first and last measurements, both for the Db 4 ( p ≤ 0.023) and Bior 3.1 ( p ≤ 0.01) wavelets. These differences were found in 73% of patients whose curve patterns were analysed using the Db 4 wavelet and in 82% of patients in the case of the Bior 3.1 wavelet. Conclusions: The wavelet transform proved to be an effective research tool in the qualitative evaluation of irregularities occurring in the curve patterns of the torque generated by the extensors of the ACL reconstructed knee. The findings of the study suggest that time-frequency analyses of these characteristics can be of practical importance, as they help assess the state of the patient’s knee joint and his progress in rehabilitation after ACLR.

2

The influence of anterior cruciate ligament reconstruction on accelerometric gait analysis

84%

Golec J. , Wójcik K. , Bar A. , Szczygieł E. , Czechowska D. , Masłoń A. , Tomaszewska I. M.

Medical Rehabilitation

|

2017

|

tom 21(1)

4-11

PL

Wstęp: Uszkodzenia ACL – obok uszkodzeń więzadeł pobocznych, łąkotek stawu kolanowego – należą do jednych z najczęstszych obrażeń stawu kolanowego, wymagających bardzo często rekonstrukcji chirurgicznej. Przywrócenie prawidłowego wzorca chodu staje się głównym celem leczenia. Celem pracy była ocena wpływu przebytej rekonstrukcji więzadła krzyżowego przedniego (ACL) na wybrane parametry chodu w ocenie akcelerometrycznej. Materiał i metody: W badaniach wzięły udział 34 osoby w wieku 18-54 lat. Do pierwszej grupy włączono 20 osób po przebytej rekonstrukcji ACL w wieku 19-54 lat ( =29 lat). Do drugiej grupy zakwalifikowano 14 zdrowych osób bez uszkodzeń narządu ruchu w wieku 18-45 lat ( =25,36 lat). Przeprowadzono analizę chodu we własnym oraz szybkim tempie przy użyciu CQMotion Elektronik System typu MEMS. Wyniki: W pierwszej grupie, u 75% osób w czasie chodu wolnego, a u 95% podczas chodu szybkiego, wykazano różnicę przekraczającą 5% między kończyną zdrową a poddaną rekonstrukcji ACL. Szybkość chodu miała wpływ na wartość przyspieszenia zaobserwowaną w wartościach RMS w obu grupach. Wartość RMS była różna w zależności o tempa chodu. Wnioski: Akcelerometryczna analiza chodu pokazała, iż nie odnotowano dużych różnic w porównywanych wartościach przyspieszenia pomiędzy kończynami, natomiast tempo chodu miało wpływ na wybrane parametry chodu.

EN

ACL injuries – next to damage to the collateral ligaments, menisci of the knee – are the most common injuries of the knee joint and very often require surgical treatment. The main aim of the treatment is to restore normal gait pattern. The objective of this study was to determine the influence of reconstructed ACL on selected gait parameters by using an accelerometer system. The study involved 34 people aged 18-54 who were divided in two groups. The first group consisted of 20 people after ACL reconstruction, aged 19-54 years old (mean 29). The second group consisted of 14 healthy people between the age of 18-45 (mean 25.36). Gait analysis in normal and fast rate was performed using the CQMotion Electronik System, MEMS type. Differences in the results were observed in the first group. In 75% of people during normal walking and in 95% during fast walking, a 5% difference between the healthy limb and the limb after ACL reconstruction was observed. The gait rate had influence on acceleration value which was observed in RMS values in both of the groups. The RMS value was different, depending on the gait rate. Accelerometric gait analysis shows that the differences in comparing rate values between limbs are not so great, however, the gait pace has influence on some gait parameters. parameters.

3

Stabilometric indicators as an element of verifying rehabilitation of patients before and after reconstruction of anterior cruciate ligament

84%

Ogrodzka-Ciechanowicz K. , Czechowska D. , Chwała W. , Ślusarski J. , Gądek A.

Acta of Bioengineering and Biomechanics

|

2018

|

tom Vol. 20, no. 1

101--107

EN

The aim of the study was to evaluate effectiveness of rehabilitation in patients before and after rACL, based on stabilographic indicators. Methods: The research group was comprised of 31 men aged 20–57 with anterior cruciate ligament injury, qualified for reconstruction surgery. A measurement of static stabilometric indicators and muscle strength was taken twice for each patient – before surgery and after 6 months. To assess stabilographic indicators the stabilographic platform was used and to asses muscle strength a dynamometer was used. In order to assess knee function the Lysholm scale and VAS scale were used. Results: The rehabilitation programme improved static stability of the knee in the frontal plane, which is manifested by a significant shortening of the SPML path length. Rehabilitation proceedings should focus on improving static stability of the knee joint in the sagittal plane, because the results obtained indicate only a slight shortening of the SPAP length. The results of the Lysholm and VAS scales point to a positive influence of the applied rehabilitation. Conclusion: Inclusion into rehabilitation diagnostic tools to assess stabilometric indicators enables for effective verification of rehabilitation proceedings focused on restoring body posture control before and after the rACL.

4

COLLAGEN GENE SEQUENCE VARIANTS IN EXERCISE-RELATED TRAITS

83%

O’Connell K. , Saunders C. J. , Collins M.

Central European Journal of Sport Sciences and Medicine

|

2013

|

tom 1

|

nr 1

3-17

EN

Collagens are major structural proteins of tendons, ligaments and other components of musculoskeletal tissues. Rare mutations in many of the genes, which encode for the collagen α-chains, result in serious musculoskeletal disorders, highlighting the importance of this protein family in the normal structure an d function of musculoskeletal tissues. Since these rare mutations cause severe disorders, it has been proposed that a lack of biological redundancy exists within the collagen fibril, and that collagen-encoding genes are therefore ideal candidates for association with less severe exercise-related traits. This review identifies a number of collagen gene variants which are associated with various exercise-related traits. Based on the evidence outlined in this review, we propose that a general genetic continuum exists for collagen genes and their associated traits. At one end of this general continuum model, a single mutation within one or more collagen genes will result in severe Mendelian disorders. At the other end of the continuum, functional variants within these collagen genes collectively contribute to the aetiology of anomalous multifactorial connective tissue traits, which arise as a result of the interaction of genetic and non-genetic factors which modulate physiological responses to environmental stimuli.

5

Lower extremity muscle strength, postural stability and functional movement screen in female basketball players after ACL reconstruction : Preliminary report

71%

Wrzesień Z. , Truszczynska-Baszak A. , Rzepka R.

Acta of Bioengineering and Biomechanics

|

2019

|

tom Vol. 21, no. 2

71--81

EN

The anterior cruciate ligament (ACL) tear is a common injury in basketball. Its consequence is a long absence from training, resulting from surgical treatment and long physiotherapy. The aim of the study was to assess muscle strength, postural stability and functional movements in female basketball players, who returned to professional sport careers after anterior cruciate ligament reconstruction. Methods: The study population consisted of 10 female basketball players after surgical reconstruction of anterior cruciate ligament. The control group consisted of 10 players without ACL injury. We used the Biodex System 4 Pro dynamometer to assess the muscle strength of the knee. We used it to conduct the test of flexors and extensors of the knee in isokinetic conditions. We also used Keiser Power Squat A300 in the single leg squat to measure power and the Biodex Balance SD dynamographic platform to assess balance in single leg stance. Results: We found deficits in both movement patterns and in muscle strength in the study population, compared to control group. Conclusions: The basketball players after ACL reconstruction had significant differences between the operated and non-operated limb. The differences may predispose them towards repeated ACL injuries.

6

Projekt wstępny bioresorbowalnych implantów ortopedycznych do wspomagania rekonstrukcji więzadła krzyżowego przedniego

71%

Muzalewska M. , Wyleżoł M. , Ficek K.

Modelowanie Inżynierskie

|

2016

|

tom T. 28, nr 59

47--53

PL

Artykuł dotyczy opisu wstępnego etapu projektowania i modelowania postaci konstrukcyjnych bioresorbowalnych implantów ortopedycznych do wspomagania rekonstrukcji więzadła krzyżowego przedniego (Anterior Cruciate Ligament - ACL). Głównym zadaniem wspomnianych implantów powinno być utworzenie – w kanale kostnym - „rusztowania” dla wszczepionego przeszczepu, będącego substytutem zerwanego więzadła. Implant taki nie tylko ma precyzyjnie zakotwiczyć przeszczep w kanale kostnym, ale przede wszystkim - dzięki możliwości perfuzji krwi oraz bioresorbowalnym własnościom docelowego tworzywa - przyspieszyć wrastanie tkanki kostnej w przeszczep. Pomysł nadania postaci konstrukcyjnej implantom jest rozwinięciem wynalazku opatentowanego przez dra hab. n. med. K. Ficka.

EN

The article concerns the description of the initial stage of designing and modeling designing form of the bioresorbable orthopedic implants to support reconstruction of the anterior cruciate ligament (Anterior Cruciate Ligament - ACL). The main purpose of these implants should be to create - in the bone canal - "scaffolding" for the implanted graft, which ruptured graft which is a prosthesis of the broken ligament. The implant would not only has a precisely to anchor the graft in the bone canal, but above all - thanks to the possibility of blood perfusion and bioresorbable properties of the target material - to accelerate the ingrowth of bone tissue in the transplanted tendon. The idea of giving the structural form of the implants is a development of the invention patented by MD PhD, DSc K. Ficek.

7

Estimated ground reaction force in normal and pathological gait

67%

Winiarski S. , Rutkowska-Kucharska A.

Acta of Bioengineering and Biomechanics

|

2009

|

tom Vol. 11, nr 1

53-60

EN

In clinical gait analysis, ground reaction force (GRF) is the gait parameter which can validate the state of disorder of the patient's movement. The purpose of this study was to explore the possibilities of employing the GRF derived from kinematics of the center of gravity (COG) in the study of dynamics of human gait. Gait data was collected for healthy able-bodied men and women and patients after ACL reconstruction who use larger lateral COG excursions during gait. Reasonable agreement between methods was found in fore-aft and vertical directions, where the methods differed by an average of less than 10% in either direction. Based on model predictions of the body's COG trajectory during walking, algorithms were developed to determine spatio-temporal gait parameters related to GRF characteristics. The suitability of calculating ground reaction forces using COG displacement in a patient population is questioned.

8

Assessment of postural stability in patients after reconstruction of the anterior cruciate ligament with LARS and autogenous graft

59%

Plocki J. , Kotela I. , Bejer A. , Pelikan P. , Granek A. , Krawczyk-Suszek M.

Acta of Bioengineering and Biomechanics

|

2018

|

tom Vol. 20, no. 4

9--14

EN

The aim of the study was to assess static balance after reconstruction of the anterior cruciate ligament (ACL), using gracialis tendons graft (GR) or semi-tendinosus (ST), compared to patients treated with the Ligament Advanced Reinforcement System (LARS). The study was performed within 36 to 48 months after the surgery. Methods: The study included 96 patients. The LARS group consisted of 44 patients, control group operated with ST/GR tendons included 52 patients. The stabilometric platform Alpha was used to assess the static balance. Two 30-second trials in the double-leg stance position with eyes opened and closed were performed. The distribution of loads in a free standing was also assessed. Results: In the test with open eyes the subjects from the LARS group had a significantly longer center of pressure (COP) path, a higher mean velocity, a greater mean COP sway in foot in the lateral direction and a larger path area occupied by the COP graph. During the tests with eyes closed, a significant difference occurred in the mean displacement of COP in lateral direction – greater in the LARS group. In addition, all parameters deteriorated during the tests with eyes closed in both groups. Conclusions: In static balance assessed with eyes closed, more proprioceptive deficits may appear in the LARS group.

9

Influence of anxiety on the muscles strength in the leg after ACL reconstruction

48%

Dubaj W. , Jarosz A. , Hładki W.

Medical Rehabilitation

|

2012

|

tom 16(4)

13-20

PL

Założenia: Izolowane zerwanie więzadła krzyżowego przedniego kolana ACL jest trzecim co do częstości urazem więzadłowym stawu kolanowego. Postępowanie obejmuje rekonstrukcję i rehabilitację pooperacyjną. Wyniki leczenia ocenia się m.in. na podstawie testów ortopedycznych, badań siły mięśniowej i pomiarów obwodów, porównywanych do nogi przeciwnej. Stan kliniczny operowanego więzadła nie zawsze jest zbieżny z odczuciami pacjenta co do własnego zdrowia. Wpływ na samoocenę zdrowia przez pacjenta i przebieg rehabilitacji ma między innymi nasilenie lęku. Cel: Ocena wpływu predyspozycji do reagowania lękiem na skuteczność rehabilitacji, ocenianej w oparciu o pomiary siły mięśni, po operacyjnym leczeniu przerwanego więzadła krzyżowego przedniego kolana. Materiał i metoda: Badano 201 pacjentów z rozpoznanym zerwaniem więzadła krzyżowego przedniego kolana (113 kobiet i 88 mężczyzn). Wszyscy pacjenci zostali poddani rekonstrukcji więzadła krzyżowego przedniego oraz sześciomiesięcznemu leczeniu rehabilitacyjnemu. Do oceny nasilenia lęku jako cechy badanego przed zabiegiem operacyjnym zastosowano Kwestionariusz STAI, a do dwukrotnego badania siły mięśni (tydzień przed i po 6 miesiącach od operacji) zastosowano dynamometr.Wyniki: Badani wykazujący małe nasilenie lęku-cechy (poniżej 3,5 stena) istotnie częściej niż badani wykazujący duże nasilenie lęku-cechy (powyżej 7,5 stena) uzyskiwali po rehabilitacji zwiększenie siły mięśni przywodzicieli stawu biodrowego i prostowników stawu kolanowego, oraz poprawę w teście leg press operowanej kończyny dolnej.Wnioski: Zwiększona predyspozycja do reagowania lękiem może być przyczyną gorszych wyników rehabilitacji pacjentów po operacyjnej rekonstrukcji więzadła krzyżowego przedniego. W przypadku pacjentów o nasilonym lęku, rehabilitowanych po operacyjnej rekonstrukcji więzadła krzyżowego przedniego, należy rozważyć zastosowanie indywidualnego programu rehabilitacji, uwzględniającego psychoterapię.

EN

Background: The rupture of the anterior cruciate ligament (ACL) constitutes the third most frequent ligament injury of the knee joint. The approach involves its reconstruction and post-operational rehabilitation. The results of treatment are evaluated on the basis of, among other things, orthopaedic tests, tests of muscle strength and circumference measurements when compared to the other leg. The clinical state of the ligament is not always in accordance with the patient’s perceptions as to their state of health. An influence on the self evaluation of health on the part of the patient is brought about by, among other things, an intensification in fear and anxiety.Objective: An evaluation of the influence of a predisposition for an anxiety reaction on the effectiveness of rehabilitation, evaluated in relation to the measurement of muscle strength, following operational treatment of the injured ACL.Materials and Methods: 201 patients (113 women and 88 men) were tested who had a diagnosed of the ACL injury. All the patients were subjected to a reconstruction of the ACL as well as a period of six months of rehabilitation treatment. The STAI questionnaire was used in the evaluation of the trait-anxiety prior to the operational procedure, while twice a dynamometer was used in the testing of muscle strength (a week before and six months after the operation).Results: Those patients displaying a small intensification in trait-anxiety (lower than 3.5) significantly more often than those patients displaying a large intensification in trait-anxiety (over 7.5) gained increased muscle strength following rehabilitation of the hip joint adductor and the extensors of the knee joint, as well as an improvement in the leg press test of the lower limb operated on. Conclusions: An increased predisposition for an anxiety reaction may be the reason for poorer rehabilitation results in patients following an operational reconstruction of the ACL. It may be necessary in the case of patients undergoing rehabilitation after an operational reconstruction of the ACL and who display an intensive anxiety of the said to consider the application of an individual programme of rehabilitation, one incorporating elements of psychotherapy.

10

Peak ground reaction force and loading rate from kinematics in the ACL deficient patients

48%

Winiarski S. , Siemieński A.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

|

2006

|

tom z. 26

377-382

EN

In clinical gait analysis ground reaction force measurement is the gait parameter which can validate the state of disorder of the patient's movement. 3D kinematic gait analysis was conducted on normal and ACL-deficient subjects to test the usefulness of ground reaction force (GRF) measurement obtained from the kinematic data of the body center of gravity (COG) in clinical condition. The 3D displacement of the COG was calculated using the Clauser model and acceleration was calculated using double differential operation. Peak force and loading rate in gait was estimated from kinematics and directly from force plate measurement.