- After 3 months of empirical research results show that long jump record of the student body type hyperextension clear ret.Nhung increased strength development exercises were selected speed with greater efficiency than the exercises current to the total growth of all 3 tests: W% (male empirical) = 24.87%> W% (male control) = 17:31%; W% (experimental females) = 21.73%> W% (female controls) = 17:11%.
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