%0 Journal Article
%T Development of Flexibility of Children with Different Types of the Nervous System Using Speed-Strength Exercises
%A Georgiy Georgievich Polevoy
%A Andrew Borisovich Sablin
%J Archives of Pharmacy Practice
%@ 2320-5210
%D 2022
%V 13
%N 2
%R 10.51847/1urdPlmGPW
%P 7-10
%X The determination of the effect of speed-strength exercises on the flexibility of 13 to 14-year-old teenagers, using a differentiated load was the aim of the study. The experiments took place at a school in Russia, 40 students aged 13-14 took part in it, they were differentiated into 2 subgroups of 20 subjects. The control group’s Schoolchildren were involved in the usual program, whilst the ones from the experimental one at each physical education lesson performed a set of speed and strength exercises for 8 minutes. 

After the study, the data in the control group improved from 2% to 8%, and in the experimental group from 11% to 24%. There was a significant improvement in performance and flexibility among students who purposefully performed a set of speed and strength exercises at each physical education lesson. Physical activity should be different, based on the type of nervous system of students. For students with a strong nervous system, intensive exercise is more effective, and for students with a weak nervous system, volumetric physical activity is more effective. 
%U https://archivepp.com/article/development-of-flexibility-of-children-with-different-types-of-the-nervous-system-using-speed-streng-afx0vlsmyx0oblf