دراسة مقارنة في بعض المتغيرات البايوكينماتيكية لاختبار القفز من الثبات إلى الأمام على وفق مستوى الإنجاز

الملخص EN

The research aims at : 1- Finding out the Values of the Biokinematic Variables in the Test of jump from stationary position forward to the measure the explosive power of lower limbs .

2- Finding out the differences in the Values of Some Biokinematic Variables between one the highest attempt and the lowest .

The study was conducted on 31 fourth year students / Physical Education College / academic year 2011-2012.

both researchers used the technical scientific observation (Video Camera ) to collect data , The highest and lowest attempts were analyzed using (MaxTRAQ) program.

The data were statistically treated by using mathematical mean, standard deviation and (T) test.

The researchers concluded the following : 1- The number of significant differences achieved in momentary Biokinematic variables was (7) out of (21) significant ones , Then, the percentage was about 33,33 % .

The number of significant differences from stage to another stage was (5) out of (15) .Then , the percentage was also 33,33% .

2- The momentary Biokinematic Variable (The angle of the knee) has a remarkable effect in the significant differences achieved in the stage Biokinematic variables and on the differences between the highest and the lowest attempts.