D Scott Witherow
A ten-week biochemistry lab project studying wild-type and mutant bacterial alkaline phosphatase
Biochemistry and molecular biology education : a bimonthly publication of the International Union of Biochemistry and Molecular Biology
introduction study aimed compare 1012yearold qatari male soccer players n 45 regarding different dimensions anthropometric academic physical performance methods anthropometric parameters body mass fat percentage bf body mass index bmi academic achievement mathematics science grade point average gpa physical performance yoyo intermittent recovery test level 1 squat jumps sj countermovement jumps cmj stork balance test 10 15 sprint tests thalf test changeofdirection cod ability handgrip strength medicine ball throw mbt measured schoolchild soccer players divided three groups 12yearold players u12 n 16 11yearold players u11 n 14 10yearold players u10 n 15 results apart mathematics yoyo ir1 10 sprint performance parameters showed significant age effects largest agerelated difference observed 15 sprint p 0001 adjacent age groups displayed significant differences 15 sprint u10 vs u11 p 0015 u11 vs u12 p 0023 concerning academic performance significant age effect found science p 0001 main age effect academic performance difference u10 u11 p 0007 academic parameters correlate physical performance parameter anthropometric parameter strongest correlations detected body height agility thalf test r 0686 medicine ball throw r 0637 biological maturity strongly correlated handgrip strength r 0635 discussion soccer coaches physical education teachers use data reference values evaluation schoolaged soccer players ascertaining specific training targets obviously short sprinting ability aerobic capacity functions age need specific training significant improvements