Functional assessment of the movement with the aim of establishing asymmetry in the range and quality of movement in volleyball players HAOK „Mladost“

Strukturalna analiza odbojkaških aktivnosti podrazumijeva podjelu na kompleks napada (K1) i kompleks kontranapada (K2) koji se dalje granaju u niz tehničko - taktičkih elemenata. Neki od tih elemenata izvode se jednom rukom, a neki sa obje. Upravo se iz razloga velikog broja ponavljanja određenih kretnih struktura dominantnom ili nedominantnom rukom, nogom ili stranom tijela pojavljuju pojedini deficiti koji moguutjecati na nepravilno izvođenje pojedinog elementa. Nepravilna izvedba određenog tehničko – taktičkog elementa može dovesti do smanjenja situacijske učinkovitosti, a nadalje i biti uzrokom kronične ili akutne ozljede odbojkašice ili odbojkaša. Glavni cilj ovog diplomskog rada je utvrditi asimetriju u opsegu i kvaliteti pokreta na uzorku od 31 ispitanice, odbojkašice „HAOK MLADOST“. Mjerenje opsega i kvalitete pokreta izvršeno je FMS metodologijom. Korišteno je 5 od 7 testova koji podrazumijevaju bilateralnost. Rezultati na lijevoj i desnoj strani tijela uspoređeni su WilcoxonSignedrank testom te se pritom statistički značajna razlika pokazala u 2 od 5 mjerenih testova APPN (aktivno podizanje pružene noge) i MR (mobilnost ramena) uz veliku snagu zaključivanja. Uzrok dobivene asimetrije u testovima mogao bi biti veliki broj ponavljanja smečeva i servisa dominantnom rukom te različite tehnike odraza, skoka i doskoka što ujedno dovodi do mišićnog disbalansa, smanjenje mobilnosti i stabilnosti koje kasnije može rezultirati ograničenju u izvođenju bazičnih pokreta.Structural analysis of volleyball activities included the division of the complex attack (K1) ancounter-attack complex (K2) which branches out in series of tehnical- tactical elements. Some of these elements are preformed with one hand, and some of them with both. Beacuse of the large number of repetitions of certain motion structures dominant or non – dominant hand, leg or side of the body appear deficits that can affect the improper perfrormance of particular element. Improper performance of specific technical – tactical elements can lead to a reduction of situational efficiency, and can be cause of chronic or acute injury of volleyball players. The main objective of this master thesis is to determine the asymmetry in the range and quality of movement on a sample of 31 respondents, women´s volleyball team HAOK „Mladost“. Measuring range and quality of movement was made with FMS methodology. We used 5 of 7 test that can measure the asymmetry. Results on the left and right side of the body are compared with WilcoxonSignedrank test. Statistical significant difference was shown in 2 ofthe 5 tests measured APPN (active straight leg raise) and MR (shoulder mobility). The cause of the resulting asymmetry in the test could be a large number of repetitions of spike and serve with dominant hand and the different tehniques of reflection, jumping and landing, which also leads to muscle imbalance, reducing mobility and stability which can later resulte in limitation of the performance of the basic movement

Functional assessment of the movement with the aim of establishing asymmetry in the range and quality of movement in volleyball players HAOK „Mladost“

Strukturalna analiza odbojkaških aktivnosti podrazumijeva podjelu na kompleks napada (K1) i kompleks kontranapada (K2) koji se dalje granaju u niz tehničko - taktičkih elemenata. Neki od tih elemenata izvode se jednom rukom, a neki sa obje. Upravo se iz razloga velikog broja ponavljanja određenih kretnih struktura dominantnom ili nedominantnom rukom, nogom ili stranom tijela pojavljuju pojedini deficiti koji moguutjecati na nepravilno izvođenje pojedinog elementa. Nepravilna izvedba određenog tehničko – taktičkog elementa može dovesti do smanjenja situacijske učinkovitosti, a nadalje i biti uzrokom kronične ili akutne ozljede odbojkašice ili odbojkaša. Glavni cilj ovog diplomskog rada je utvrditi asimetriju u opsegu i kvaliteti pokreta na uzorku od 31 ispitanice, odbojkašice „HAOK MLADOST“. Mjerenje opsega i kvalitete pokreta izvršeno je FMS metodologijom. Korišteno je 5 od 7 testova koji podrazumijevaju bilateralnost. Rezultati na lijevoj i desnoj strani tijela uspoređeni su WilcoxonSignedrank testom te se pritom statistički značajna razlika pokazala u 2 od 5 mjerenih testova APPN (aktivno podizanje pružene noge) i MR (mobilnost ramena) uz veliku snagu zaključivanja. Uzrok dobivene asimetrije u testovima mogao bi biti veliki broj ponavljanja smečeva i servisa dominantnom rukom te različite tehnike odraza, skoka i doskoka što ujedno dovodi do mišićnog disbalansa, smanjenje mobilnosti i stabilnosti koje kasnije može rezultirati ograničenju u izvođenju bazičnih pokreta.Structural analysis of volleyball activities included the division of the complex attack (K1) ancounter-attack complex (K2) which branches out in series of tehnical- tactical elements. Some of these elements are preformed with one hand, and some of them with both. Beacuse of the large number of repetitions of certain motion structures dominant or non – dominant hand, leg or side of the body appear deficits that can affect the improper perfrormance of particular element. Improper performance of specific technical – tactical elements can lead to a reduction of situational efficiency, and can be cause of chronic or acute injury of volleyball players. The main objective of this master thesis is to determine the asymmetry in the range and quality of movement on a sample of 31 respondents, women´s volleyball team HAOK „Mladost“. Measuring range and quality of movement was made with FMS methodology. We used 5 of 7 test that can measure the asymmetry. Results on the left and right side of the body are compared with WilcoxonSignedrank test. Statistical significant difference was shown in 2 ofthe 5 tests measured APPN (active straight leg raise) and MR (shoulder mobility). The cause of the resulting asymmetry in the test could be a large number of repetitions of spike and serve with dominant hand and the different tehniques of reflection, jumping and landing, which also leads to muscle imbalance, reducing mobility and stability which can later resulte in limitation of the performance of the basic movement

Functional assessment of the movement with the aim of establishing asymmetry in the range and quality of movement in volleyball players HAOK „Mladost“

Strukturalna analiza odbojkaških aktivnosti podrazumijeva podjelu na kompleks napada (K1) i kompleks kontranapada (K2) koji se dalje granaju u niz tehničko - taktičkih elemenata. Neki od tih elemenata izvode se jednom rukom, a neki sa obje. Upravo se iz razloga velikog broja ponavljanja određenih kretnih struktura dominantnom ili nedominantnom rukom, nogom ili stranom tijela pojavljuju pojedini deficiti koji moguutjecati na nepravilno izvođenje pojedinog elementa. Nepravilna izvedba određenog tehničko – taktičkog elementa može dovesti do smanjenja situacijske učinkovitosti, a nadalje i biti uzrokom kronične ili akutne ozljede odbojkašice ili odbojkaša. Glavni cilj ovog diplomskog rada je utvrditi asimetriju u opsegu i kvaliteti pokreta na uzorku od 31 ispitanice, odbojkašice „HAOK MLADOST“. Mjerenje opsega i kvalitete pokreta izvršeno je FMS metodologijom. Korišteno je 5 od 7 testova koji podrazumijevaju bilateralnost. Rezultati na lijevoj i desnoj strani tijela uspoređeni su WilcoxonSignedrank testom te se pritom statistički značajna razlika pokazala u 2 od 5 mjerenih testova APPN (aktivno podizanje pružene noge) i MR (mobilnost ramena) uz veliku snagu zaključivanja. Uzrok dobivene asimetrije u testovima mogao bi biti veliki broj ponavljanja smečeva i servisa dominantnom rukom te različite tehnike odraza, skoka i doskoka što ujedno dovodi do mišićnog disbalansa, smanjenje mobilnosti i stabilnosti koje kasnije može rezultirati ograničenju u izvođenju bazičnih pokreta.Structural analysis of volleyball activities included the division of the complex attack (K1) ancounter-attack complex (K2) which branches out in series of tehnical- tactical elements. Some of these elements are preformed with one hand, and some of them with both. Beacuse of the large number of repetitions of certain motion structures dominant or non – dominant hand, leg or side of the body appear deficits that can affect the improper perfrormance of particular element. Improper performance of specific technical – tactical elements can lead to a reduction of situational efficiency, and can be cause of chronic or acute injury of volleyball players. The main objective of this master thesis is to determine the asymmetry in the range and quality of movement on a sample of 31 respondents, women´s volleyball team HAOK „Mladost“. Measuring range and quality of movement was made with FMS methodology. We used 5 of 7 test that can measure the asymmetry. Results on the left and right side of the body are compared with WilcoxonSignedrank test. Statistical significant difference was shown in 2 ofthe 5 tests measured APPN (active straight leg raise) and MR (shoulder mobility). The cause of the resulting asymmetry in the test could be a large number of repetitions of spike and serve with dominant hand and the different tehniques of reflection, jumping and landing, which also leads to muscle imbalance, reducing mobility and stability which can later resulte in limitation of the performance of the basic movement

EVALUATION OF UNCONSTRAINING METHODS IN AIRLINES’ REVENUE MANAGEMENT SYSTEMS

Airline revenue management systems are used to calculate booking limits on each fare class to maximize expected revenue for all future flight departures. Their performance depends critically on the forecasting module that uses historical data to project future quantities of demand. Those data are censored or constrained by the imposed booking limits and do not represent true demand since rejected requests are not recorded. Eight unconstraining methods that transform the censored data into more accurate estimates of actual historical demand ranging from naive methods such as discarding all censored observation, to complex, such as Expectation Maximization Algorithm and Projection Detruncation Algorithm, are analyzed and their accuracy is compared. Those methods are evaluated and tested on simulated data sets generated by ICE V2.0 software: first, the data sets that represent true demand were produced, then the aircraft capacity was reduced and EMSRb booking limits for every booking class were calculated. These limits constrained the original demand data at various points of the booking process and the corresponding censored data sets were obtained. The unconstrained methods were applied to the censored observations and the resulting unconstrained data were compared to the actual demand data and their performance was evaluated

Modelling of the influence of creep strains on the fire response of steel elements

The paper presents a numerical model for the behaviour of steel structures exposed to fire capable of taking into account the effect of steel creep at high temperatures by using a simple implicit model. The objective of the simple implicit model is to modify the material stationary stress-strain curves. After reaching temperatures above 400°C, stress-strain curves are modified by stretching the curves using a calculated value of creep strain at current stress, temperature and time. Described numerical procedure was tested by modelling the behaviour of two simply supported steel elements that were partially exposed to high temperatures in an in-house experiment. Authors are claiming that the implicit model is applicable for modelling the behaviour of steel elements with free thermal expansion or with a low level of restriction to thermal expansion

A Review of Ancillary Services Implementation in the Revenue Management Systems

Ancillary services in air transport represent a set of services provided to passengers to choose from, enabling them to enhance their travel experience while accumu-lating additional airline revenue. Low-cost airlines pi-oneered the practice, but the separation of ancillary services from the basic service has become an intense-ly growing trend in the air transport industry over the last decade. This practice has enabled low-cost airlines to significantly reduce the price of the basic service. To remain competitive in an era of transparency provided by search engines, traditional airlines offer ancillary ser-vices in addition to the basic service. To meet the passen-ger’s needs, a whole range of ancillary services has been created. However, existing revenue management systems do not take this ancillary revenue into account when cal-culating reservation limits. If the airline knew that an in-dividual passenger is willing to pay more for ancillary services, the system would be able to adjust the availabil-ity of the service for that passenger during the booking process. A review of research on passengers’ willingness to pay for ancillary services is presented in the paper, as well as a review on research on the personalisation of ancillary services and challenges of integrating person-alised pricing into existing revenue management systems

Genetic risk and a primary role for cell-mediated immune mechanisms in multiple sclerosis.

Multiple sclerosis is a common disease of the central nervous system in which the interplay between inflammatory and neurodegenerative processes typically results in intermittent neurological disturbance followed by progressive accumulation of disability. Epidemiological studies have shown that genetic factors are primarily responsible for the substantially increased frequency of the disease seen in the relatives of affected individuals, and systematic attempts to identify linkage in multiplex families have confirmed that variation within the major histocompatibility complex (MHC) exerts the greatest individual effect on risk. Modestly powered genome-wide association studies (GWAS) have enabled more than 20 additional risk loci to be identified and have shown that multiple variants exerting modest individual effects have a key role in disease susceptibility. Most of the genetic architecture underlying susceptibility to the disease remains to be defined and is anticipated to require the analysis of sample sizes that are beyond the numbers currently available to individual research groups. In a collaborative GWAS involving 9,772 cases of European descent collected by 23 research groups working in 15 different countries, we have replicated almost all of the previously suggested associations and identified at least a further 29 novel susceptibility loci. Within the MHC we have refined the identity of the HLA-DRB1 risk alleles and confirmed that variation in the HLA-A gene underlies the independent protective effect attributable to the class I region. Immunologically relevant genes are significantly overrepresented among those mapping close to the identified loci and particularly implicate T-helper-cell differentiation in the pathogenesis of multiple sclerosis

Bi-allelic ACBD6 variants lead to a neurodevelopmental syndrome with progressive and complex movement disorders

The acyl-CoA-binding domain-containing protein 6 (ACBD6) is ubiquitously expressed, plays a role in the acylation of lipids and proteins, and regulates the N-myristoylation of proteins via N-myristoyltransferase enzymes (NMTs). However, its precise function in cells is still unclear, as is the consequence of ACBD6 defects on human pathophysiology. Utilizing exome sequencing and extensive international data sharing efforts, we identified 45 affected individuals from 28 unrelated families (consanguinity 93%) with bi-allelic pathogenic, predominantly loss-of-function (18/20) variants in ACBD6. We generated zebrafish and Xenopus tropicalis acbd6 knockouts by CRISPR/Cas9 and characterized the role of ACBD6 on protein N-myristoylation with YnMyr chemical proteomics in the model organisms and human cells, with the latter also being subjected further to ACBD6 peroxisomal localization studies. The affected individuals (23 males and 22 females), with ages ranging from 1 to 50 years old, typically present with a complex and progressive disease involving moderate-to-severe global developmental delay/intellectual disability (100%) with significant expressive language impairment (98%), movement disorders (97%), facial dysmorphism (95%), and mild cerebellar ataxia (85%) associated with gait impairment (94%), limb spasticity/hypertonia (76%), oculomotor (71%) and behavioural abnormalities (65%), overweight (59%), microcephaly (39%) and epilepsy (33%). The most conspicuous and common movement disorder was dystonia (94%), frequently leading to early-onset progressive postural deformities (97%), limb dystonia (55%), and cervical dystonia (31%). A jerky tremor in the upper limbs (63%), a mild head tremor (59%), parkinsonism/hypokinesia developing with advancing age (32%), and simple motor and vocal tics were among other frequent movement disorders. Midline brain malformations including corpus callosum abnormalities (70%), hypoplasia/agenesis of the anterior commissure (66%), short midbrain and small inferior cerebellar vermis (38% each), as well as hypertrophy of the clava (24%) were common neuroimaging findings. acbd6-deficient zebrafish and Xenopus models effectively recapitulated many clinical phenotypes reported in patients including movement disorders, progressive neuromotor impairment, seizures, microcephaly, craniofacial dysmorphism, and midbrain defects accompanied by developmental delay with increased mortality over time. Unlike ACBD5, ACBD6 did not show a peroxisomal localisation and ACBD6-deficiency was not associated with altered peroxisomal parameters in patient fibroblasts. Significant differences in YnMyr-labelling were observed for 68 co- and 18 post-translationally N-myristoylated proteins in patient-derived fibroblasts. N-Myristoylation was similarly affected in acbd6-deficient zebrafish and Xenopus tropicalis models, including Fus, Marcks, and Chchd-related proteins implicated in neurological diseases. The present study provides evidence that bi-allelic pathogenic variants in ACBD6 lead to a distinct neurodevelopmental syndrome accompanied by complex and progressive cognitive and movement disorders

Proceedings of the 12th International Conference on Kinanthropology

Proceedings of the 12th Conference of Sport and Quality of Life 2019 gatheres submissions of participants of the conference. Every submission is the result of positive evaluation by reviewers from the corresponding field. Conference is divided into sections – Analysis of human movement; Sport training, nutrition and regeneration; Sport and social sciences; Active ageing and sarcopenia; Strength and conditioning training; section for PhD students