Tyrimo tikslas – nustatyti įvairaus amžiaus ir lyties orientacininkų kojų tiesiamųjų raumenų galingumą ir atsparumą nuovargiui vertikalaus šuoliavimo testo metu. Buvo ištirti 92 orientacininkai, pagal amžių (metais) ir lytį (moteriška, M; vyriška, V) suskirstyti į šešias grupes: M15–17 merginos (n = 19), M18–20 merginos (n = 9), M>21 moterys (n = 4), V15–17 jaunuoliai (n = 21), V18–20 vaikinai (n = 18), V > 21 vyrai (n = 21). Vertikalių šuolių aukštį matavome pagal C. Bosco metodiką. Po standartinės pramankštos tiriamieji ant 60x60 cm dydžio kontaktinio kilimėlio atliko po tris vienkartinius maksimalių pastangų vertikalius šuolius su rankų mostu ir be mosto, o paskui 60 s šuoliavo maksimaliomis pastangomis, amortizuojamai pritūpdami iki 90° kampo per kelius (rankas laikydami ant juosmens). Vienkartinio vertikalaus šuolio aukštis (taigi ir kojų tiesiamųjų raumenų galingumas) nepriklausė nuo amžiaus, tačiau visose amžiaus grupėse vyriška lytis tiriamieji pašokdavo aukščiau. Lyginant orientacininkių gebėjimą aukštai pašokti su rankų mostu ir be mosto, reikšmingus pašokimo aukščio skirtumus nustatėme 15–17 ir 18–20 metų amžiaus orientacininkių grupėse, o tarp orientacininkų šis skirtumas buvo reikšmingas visose amžiaus grupėse (p < 0,001). Išanalizavę šuolių aukščio kaitą 1 min. šuoliavimo testo metu pastebėjome, kad statistiškai reikšmingi vargstamumo skirtumai amžiaus aspektu buvo tik tarp M15–17 ir M18–20 grupių (p < 0,05), o lyties aspektu – tarp M15–17 ir V15–17 grupių... [toliau žr. visą tekstą] / The aim of the study was to estimate vertical jumping performance in orienteers of various age and both sexes. The study embraced 92 orienteers of national level. According to age (years) and gender (males, M; females, F), six groups of athletes were singled out: F15–17 (n = 19), F18–20 (n = 9), F>21 (n = 4), M15–17 (n = 21), M18–20 (n = 18), and M>21 (n = 21). After a standard warm-up, subjects performed maximal intensity vertical jumps on the contact mat sized 60x60 cm. After orienteers made jumps with and without arm swing (3 attempts each), all-out vertical jumps for 60 sec with a shock-absorbing squat to 90° knee angle, arms akimbo, were performed. The jump height was measured according to C. Bosco et al., using a flight-phase time as a sole indicator. There were no statistically significant differences in the height of the single vertical jump between age groups, irrespectively of the gender. However, statistically significant differences were observed in the height of the single vertical jump in all age groups in respect to gender. The comparison of vertical jumps performed by females with and without arm swing revealed statistically significant difference only between F15–17 and F18–20 groups, while the difference in jump height between two modes was statistically significant in male orienteers of all age groups (p < 0.001). F15–17 and F18–20 groups differed in respect to fatigue index during 60 sec test (p < 0.05). The different fatigue index was observed in respect... [to full text]

It was investigatet the indexes of physical charges and their changes among the basketball players of 15–16 years old. The survey was done in January and February, 2006 and there were 15 young basketballers. The aim of the survey was the changes of the young players in the acceleration of the physical strength and becoming well again. According to the pecularities of the phases of the young players and the importance of the physical strength there was an actual research in this problem, that is, to ascertain the changes of the indexesof the accelaration of the strength pointing at various physical charges and becoming well afterwards. The aims were to ascertain the hight of the players jump (hp90, Dj90 and Dj135), as well as their changes before the charge and after it, and becoming well afterwards, then to ascertain the tiredness of the muscles, the composition of the skeleton, the changes of the height of the jumps at the maximal intensivity, and to ascertain the pain of the muscles. During the warming – up the players did three experimental jumps in these ways: hp90, Dj90, Dj135. Later, the young basketball players had to do three control jumps. Then, there was a 1 minute charge test in maximum power series of the jumps. After that, they did three control jumps in all the described ways. Then, the young players had a rest for one hour. After that they had a warming – up and then three control jumps. A contact platform was used to ascertain the height of the jump with the... [to full text]