Andersen, T. Bull6; Bendixen, Mads2; Pedersen, Jens Meldgaard3; Ørntoft, Christina2; Brito, João4; Jackman, Sarah R.5; Williams, Craig A5; Krustrup, Peter5
1 Department of Public Health - Sport Science, Department of Public Health, Health, Aarhus University2 University of Copenhagen3 Department of Sport Science, Faculty of Science, Aarhus University, Aarhus University4 University of Porto5 University of Exeter6 Department of Public Health - Sport Science, Department of Public Health, Health, Aarhus University
We investigated kicking velocity and physical, technical, and tactical match performance for under-18 (U18) female football players and evaluated the effect of using a newly developed lighter smaller ball. Ten regional league teams participated. Maximal ball velocity was 4±1% higher when kicking the new ball (NB) compared with the standard ball (SB) in a laboratory testing situation (23.2±0.4 vs. 22.4±0.3 ms(-1); p.05), but lower-limb muscular RPE was lower with NB (4.2±0.4 vs. 5.2±0.3; p.05). High-intensity running decreased (p.05). In conclusion, physiological demands were high in youth female football games, and decrements in running performance occurred towards the end of games. The players kicked faster and reported lower muscular exertion during games played with a lighter smaller ball, but locomotor activities, heart rate and overall technical-tactical game performance remained unaffected.
Human Movement Science, 2012, Vol 31, Issue 6, p. 1624-1638