Voleybolchilarning kombinatsion hujum harakatlarida yugurib kelish fazasini raqamli baholash va takomillashtirish
Annotasiya
Mazkur maqolada voleybolchilarning kombinatsion hujumlarida yugurib kelish fazasini miqdoriy baholash va uni takomillashtirish imkoniyatlari EXM dasturi yordamida o‘rganildi. Dastur ikki o‘yinchining yugurib kelish yo‘nalishlari o‘rtasidagi burchak qiymatini hisoblash hamda mazkur ko‘rsatkich bo‘yicha hujum harakatini differensial baholash uchun qo‘llanildi. Statistik kuzatuv birligi sifatida alohida kombinatsion hujum epizodi qabul qilindi: tadqiqotning har bir bosqichida nazorat va tajriba guruhlaridan 10 tadan hujum epizodi tahlil qilindi. Dastlabki o‘lchashda o‘rtacha burchak nazorat guruhida 155,0±1,36°, tajriba guruhida 156,0±1,22° bo‘lib, epizodlar darajasidagi guruhlararo farq statistik ahamiyatli emas edi (t = 0,55; p = 0,591). Tajriba yakunida ko‘rsatkich nazorat guruhida 151,4±1,44° gacha, tajriba guruhida esa 137,3±1,37° gacha kamaydi; yakuniy bosqichda epizodlar darajasidagi guruhlararo farq statistik ahamiyatli bo‘ldi (t = 7,08; p < 0,001). Hujum samaradorligi indeksi nazorat guruhida 55 % dan 60 % gacha, tajriba guruhida 50 % dan 80 % gacha oshdi.
Kalit so‘zlar:
voleybol kombinatsion hujum yugurib kelish fazasi EXM dasturi harakat trayektoriyasi o‘zaro burchak raqamli nazoratBibliografik manbalar
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