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As the age increases, the physical fitness of seniors decreases. This shows the fragility of their body. Managing everyday activities becomes increasingly more difficult for them. Result of this is reduced self-sufficiency of the seniors, which leads to reduced mobility and to the greater loss of muscle mass and higher dependence on professional care. Aging is accompanied by loss of muscle mass and muscle strength - sarcopenia. This is one of the main causes of geriatric fragility. Sarcopenia presents a serious health problem with both social and economic consequences. The term sarcopenia (from Greek words sarx - meaning flesh referring to muscle and penia - loss) was first used in 1989 by Irwin Rosenberg to describe the loss of muscle mass accompanying aging. Exactly defining the term sarcopenia has helped explain this gradual loss of muscle mass. Three objectives were set in the thesis. The first objective was to find out whether sarcopenia reduces the quality of life in the elderly. The second goal was to determine, which quality of life tests are suitable for testing sarcopenia and the last one was whether the SARC - F questionnaire predicts sarcopenia.Quantitative research was used for the empirical part of this work. Data collection was performed using a method of a questionnaire. These were standardized questionnaires aimed at assessing sarcopenia and quality of life. The research was carried out with a total of 77 respondents with sarcopenia and respondents without sarcopenia. The quantitative part of the research was statistically processed using the MS Excel computer program.

<p>Ispitivanu grupu činilo je 1247 ispitanika sa povredama prednje ukr&scaron;tene veze kolena koji su operativno lečeni u periodu 2012.-2017. godina na Klinici za ortopedsku hirurgiju i traumatologiju Kliničkog centra Vojvodine. Ciljevi istraživanja bili su utvrđivanje uticaja nivoa sportske aktivnosti i mehanizama povređivanja na nastanak povreda prednje ukr&scaron;tene veze kolena, zatim uticaj spolja&scaron;njih faktora rizika (vrsta sporta, rang takmičenja, vrsta podloge, trening ili utakmica, period treninga) na nastanak povreda prednje ukr&scaron;tene veze kolena, odnosno uticaj unutra&scaron;njih faktora rizika (pol, starost, BMI) na nastanak povreda ove strukture kolena. Od ukupnog broja ispitanika njih 517 (41,5%) su činili aktivni sportisti, a 730 (58,5%) rekreativci. Značajnu većinu u posmatranom uzorku su činili mu&scaron;karci (82,6%), osobe starosti od 16 do 25 godina (62,6%) i normalno uhranjenje osobe (62%). Do povrede prednje ukr&scaron;tene veze do&scaron;lo je kod njih 504 (40,5%) prilikom aktivnog bavljenja sportom, dok su se povrede prilikom rekreativnog bavljenja sportom dogodile kod 741 ispitanika (59,5%). Među aktivnim sportistima, vi&scaron;e od dve trećine se takmičilo na internacionalnom ili republičkom nivou, odnosno u najvi&scaron;im rangovima takmičenja. Kontaktnim kolektivnim sportovima (fudbal, ko&scaron;arka i rukomet) bavilo se 77,9% ispitanika. Nekontaktnim sportovima kao &scaron;to su odbojka, borilački sportovi i skijanje bavilo se 22,1% ispitanika, pri čemu je najveći broj povreda nastao prilikom igranja fudbala (51,3%). Statistički značajno vi&scaron;e povreda (i prilikom aktivnog i prilikom rekreativnog bavljenja sportom) je nastalo bez direktnog kontakta (nekontaktne povrede koje su činile 78,7% povreda), pri čemu je najveći broj povreda nastao usled promene pravca i ritma kretanja. Kod aktivnih sportista najvi&scaron;e povreda dogodilo se na utakmicama (73,8%), slede povrede na treningu (24,1%), dok se na rekreaciji povredilo svega 2,1% ispitanika. Značajno vi&scaron;e povreda dogodilo se na sredini bavljenja sportskom aktivno&scaron;ću (47,4%) u odnosu na povrede na zagrevanju, početku, odnosno kraju sportske aktivnosti. Povrede su značajno če&scaron;će nastajale na travi (42%) i parketu (28%), nego na drugim vrstama podloge. Najveći broj ispitanika povredio se noseći patike prilikom bavljenja sportskom aktivno&scaron;ću. Postoje značajne razlike u kontekstu povređivanja u zavisnosti od pola ispitanika. Žene su u značajno većem procentu povređivane prikom aktivnog bavljenja sportom, dok su se mu&scaron;karci če&scaron;će povređivali na rekreaciji. Žene su se najče&scaron;će povređivale na rukometu, mu&scaron;karci na fudbalu. U odnosu na mu&scaron;karce, kod žena su povrede znatno ređe nastajale prilikom direktnog kontakta, a kad je u pitanju mesto povređivanja, žene su se če&scaron;će nego mu&scaron;karci povređivale na treningu. Preko 50% žena je povređeno na parketu, dok se najveći broj mu&scaron;karaca povredio na travi. Ispitanici sa prekomernom telesnom masom značajno če&scaron;će su se povređivali prilikom rekreacije, dok su se normalno uhranjeni če&scaron;će povređivali prilikom aktivnog bavljenja sportom. Faktori rizika za nastanak povreda prednje ukr&scaron;tene veze su brojni i specifični, odnosno da za svaku populacionu kategoriju postoje rizici, ali se uočava da su u svim sportovima, na svim podlogama i kod svih ispitanika povrede najče&scaron;će nastajale nekontaknim mehanizmom povređivanja. Formiranjem registra povređenih omogućilo bi se bolje razumevanje faktora rizika i njihovog međusobnog uticaja, kao i definisanje profila osoba pod najvećim rizikom za nastanak povrede prednje ukr&scaron;ene veze kolena. Na taj način obezbedile bi se potrebne informacije za planiranje preventivnih programa usmerenih na smanjenje rizika od povređivanja i omogućilo bi se sprovođenje odgovarajućih mera selektivne prevencije.</p> / <p>The study group consisted of 1247 respondents with anterior cruciate ligament injuries who were surgically treated in the period 2012-2017. at the Clinic for Orthopedic Surgery and Traumatology of the Clinical Center of Vojvodina. The objectives of the study were to determine the impact of sports activity levels and injury mechanisms on the occurrence of anterior cruciate ligament injuries, then the impact of external risk factors (type of sport, competition rank, type of surface, training or match, training period) on the occurrence of anterior cruciate ligament injuries and the influence of internal risk factors (gender, age, BMI) on the occurrence of injuries of this knee structure. Out of the total number of respondents 517 (41.5%) were active athletes, and 730 (58.5%) were recreational athletes. A significant majority in the observed group were men (82.6%), persons aged 16 to 25 years (62.6%) and normal BMI respondents (62%). Anterior cruciate ligament injury occurred in 504 of them (40.5%) during active sports, while injuries during recreational sports occurred in 741 respondents (59.5%). Among active athletes, more than two thirds competed at the international or national level- in the highest ranks of the competition. Contact collective sports (football, basketball and handball) were practiced by 77.9% of respondents. 22.1% of respondents practiced non-contact sports such as volleyball, martial arts sports and skiing. The largest number of injuries occurring while playing football (51.3%). Statistically significantly more injuries (both during active and recreational sports) occurred without direct contact (noncontact injuries-78,7% of total injuries number), with the largest number of injuries caused by changes in the direction and rhythm of movement. Among active athletes, most injuries occurred in matches (73.8%), followed by injuries in training (24.1%), while only 2.1% of respondents were injured in recreation. Significantly more injuries occurred in the middle of engaging in sports activity (47.4%) compared to injuries during the warm-up, beginning and end of sports activity. Injuries occurred significantly more often on grass (42%) and floor (28%) than on other types of surfaces. Most of the respondents were injured wearing sneakers while doing sports. There are significant differences in the context of injury depending on the gender of the respondents. A significantly higher percentage of women were injured during active sports, while men were more often injured during recreational sport activities. Women were most often injured in handball, men in football. Compared to men, injuries were much less common in women during direct contact, and when it comes to the place of injury, women were injured more often than men during training acitivities. Over 50% of women were injured on the floor, while the largest number of men were injured on the grass. Subjects with overweight were significantly more likely to be injured during recreational sport acitivites, while those with normal BMI were more likely to be injured during active sports. Risk factors for anterior cruciate ligament injuries are numerous and specific and there are risks for each population category, but it is noticed that in all sports, on all surfaces and in all subjects, injuries were most often caused by a noncontact injury mechanism. The formation of a Register of injuries would enable a better understanding of risk factors and their mutual influence, as well as the definition of the profile of persons at greatest risk for the occurrence of an anterior cruciate ligament injury. This would provide the necessary information for planning prevention programs aimed at reducing the risk of injury and would enable the implementation of appropriate selective prevention measures.</p>